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  • 1.
    Chen, Tianyang
    et al.
    Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
    Banda, Harish
    Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
    Yang, Luming
    Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi. Berzelii Center EXSELENT on Porous Materials, Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden.
    Zhang, Yugang
    Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA.
    Parenti, Riccardo
    Automobili Lamborghini S.p.A., 40019 Sant'Agata Bolognese, Italy.
    Dincă, Mircea
    Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
    High-rate, high-capacity electrochemical energy storage in hydrogen-bonded fused aromatics2023Ingår i: Joule, E-ISSN 2542-4351, Vol. 7, nr 5, s. 986-1002Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Designing materials for electrochemical energy storage with short charging times and high charge capacities is a longstanding challenge. The fundamental difficulty lies in incorporating a high density of redox couples into a stable material that can efficiently conduct both ions and electrons. We report all-organic, fused aromatic materials that store up to 310 mAh g−1 and charge in as little as 33 s. This performance stems from abundant quinone/imine functionalities that decorate an extended aromatic backbone, act as redox-active sites, engage in hydrogen bonding, and enable a delocalized high-rate energy storage with stability upon cycling. The extended conjugation and hydrogen-bonding-assisted bulk charge storage contrast with the surface-confined or hydration-dependent behavior of traditional inorganic electrodes.

  • 2.
    Chen, Tianyang
    et al.
    MIT, Dept Chem, Cambridge, MA 02139 USA..
    Dou, Jin-Hu
    MIT, Dept Chem, Cambridge, MA 02139 USA..
    Yang, Luming
    MIT, Dept Chem, Cambridge, MA 02139 USA..
    Sun, Chenyue
    MIT, Dept Chem, Cambridge, MA 02139 USA..
    Oppenheim, Julius J.
    MIT, Dept Chem, Cambridge, MA 02139 USA..
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi. Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden..
    Dinca, Mircea
    MIT, Dept Chem, Cambridge, MA 02139 USA..
    Dimensionality Modulates Electrical Conductivity in Compositionally Constant One-, Two-, and Three-Dimensional Frameworks2022Ingår i: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 144, nr 12, s. 5583-5593Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We reveal here the construction of Ni-based metal-organic frameworks (MOFs) and conjugated coordination polymers (CCPs) with different structural dimensionalities, including closely pi-stacked 1D chains (Ni-1D), aggregated 2D layers (Ni-2D), and a 3D framework (Ni-3D), based on 2,3,5,6-tetraamino-1,4-hydroquinone (TAHQ) and its various oxidized forms. These materials have the same metal-ligand composition but exhibit distinct electronic properties caused by different dimensionalities and supramolecular interactions between SBUs, ligands, and structural motifs. The electrical conductivity of these materials spans nearly 8 orders of magnitude, approaching 0.3 S/cm.

  • 3.
    Cui, Yuxiao
    et al.
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Polymera material.
    Subramaniyam, Chandrasekar M.
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi.
    Li, Lengwan
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi. KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Centra, Wallenberg Wood Science Center.
    Han, Tong
    KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap.
    Kang, Mina
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi.
    Zhao, Luyao
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Wei, Xin-Feng
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Svagan, Anna Justina
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Hamedi, Mahiar
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi. KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Centra, Wallenberg Wood Science Center.
    Hierarchical soot nanoparticle self-assemblies for enhanced performance as sodium-ion battery anodes2022Ingår i: Journal of Materials Chemistry A, ISSN 2050-7488, E-ISSN 2050-7496, Vol. 10, nr 16, s. 9059-9066Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The drawbacks of amorphous hard carbon are its low conductivity and structural instability, due to its large volume change and the occurrence of side reactions with the electrolyte during cycling. Here, we propose a simple and rapid method to address these disadvantages; we used an emulsion solvent-evaporation method to create hierarchically structured microparticles of hard carbon nanoparticles, derived from soot, and multi-walled-carbon-nanotubes at a very low threshold of 2.8 wt%. These shrub-ball like microparticles have well-defined void spaces between different nanostructures of carbon, leading to an increased surface area, lower charge-resistance and side reactions, and higher electronic conductivity for Na+ insertion and de-insertion. They can be slurry cast to assemble Na+ anodes, exhibiting an initial discharge capacity of 713.3 mA h g(-1) and showing long-term stability with 120.8 mA h g(-1) at 500 mA g(-1) after 500 cycles, thus outperforming neat hard carbon nanoparticles by an order of magnitude. Our work shows that hierarchical self-assembly is attractive for increasing the performance of microparticles used for battery production.

  • 4. Huang, Xing
    et al.
    Fu, Shuai
    Max Planck Inst Polymer Res, D-55128 Mainz, Germany..
    Lin, Cong
    Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Peoples R China..
    Lu, Yang
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany..
    Wang, Mingchao
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany..
    Zhang, Peng
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany..
    Huang, Chuanhui
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany..
    Li, Zichao
    Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01328 Dresden, Germany..
    Liao, Zhongquan
    Fraunhofer Inst Ceram Technol & Syst IKTS, D-01109 Dresden, Germany..
    Zou, Ye
    Chinese Acad Sci, Inst Chem, Lab Organ Solids, Beijing 100190, Peoples R China..
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi.
    Zhou, Shengqiang
    Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01328 Dresden, Germany..
    Helm, Manfred
    Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01328 Dresden, Germany..
    St Petkov, Petko
    Univ Sofia, Fac Chem & Pharm, Sofia 1164, Bulgaria. Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany..
    Heine, Thomas
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany..
    Bonn, Mischa
    Max Planck Inst Polymer Res, D-55128 Mainz, Germany..
    Wang, Hai I.
    Max Planck Inst Polymer Res, D-55128 Mainz, Germany..
    Feng, Xinliang
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany.;Max Planck Inst Polymer Res, D-55128 Mainz, Germany..
    Dong, Renhao
    Tech Univ Dresden, Fac Chem & Food Chem, Ctr Adv Elect Dresden cfaed, D-01062 Dresden, Germany.;Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China..
    Semiconducting Conjugated Coordination Polymer with High Charge Mobility Enabled by "4+2" Phenyl Ligands2023Ingår i: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 145, nr 4, s. 2430-2438Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Electrically conductive coordination polymers and metal-organic frameworks are attractive emerging electroactive materials for (opto-)electronics. However, developing semiconducting coordination polymers with high charge carrier mobility for devices remains a major challenge, urgently requiring the rational design of ligands and topological networks with desired electronic structures. Herein, we demonstrate a strategy for synthesizing high-mobility semiconducting conjugated coordination polymers (c-CPs) utilizing novel conjugated ligands with D2h symmetry, namely, "4 + 2" phenyl ligands. Compared with the conventional phenyl ligands with C6h symmetry, the reduced symmetry of the "4 + 2" ligands leads to anisotropic coordination in the formation of c-CPs. Consequently, we successfully achieve a single-crystalline three-dimensional (3D) c-CP Cu4DHTTB (DHTTB = 2,5-dihydroxy-1,3,4,6-tetrathiolbenzene), containing orthogonal ribbon-like pi-d conjugated chains rather than 2D conjugated layers. DFT calculation suggests that the resulting Cu4DHTTB exhibits a small band gap (similar to 0.2 eV), strongly dispersive energy bands near the Fermi level with a low electron-hole reduced effective mass (similar to 0.2m0*). Furthermore, the four-probe method reveals a semiconducting behavior with a decent conductivity of 0.2 S/cm. Thermopower measurement suggests that it is a p-type semiconductor. Ultrafast terahertz photoconductivity measurements confirm Cu4DHTTB's semiconducting nature and demonstrate the Drude-type transport with high charge carrier mobilities up to 88 +/- 15 cm2 V-1 s-1, outperforming the conductive 3D coordination polymers reported till date. This molecular design strategy for constructing high-mobility semiconducting c-CPs lays the foundation for achieving high-performance c-CP-based (opto-)electronics.

  • 5.
    Li, Jian
    et al.
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi. College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing, 100871, China.
    Lin, C.
    Ma, T.
    Sun, J.
    Atomic-resolution structures from polycrystalline covalent organic frameworks with enhanced cryo-cRED2022Ingår i: Nature Communications, E-ISSN 2041-1723, Vol. 13, nr 1, artikel-id 4016Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The pursuit of atomic precision structure of porous covalent organic frameworks (COFs) is the key to understanding the relationship between structures and properties, and further developing new materials with superior performance. Yet, a challenge of how to determine their atomic structures has always existed since the first COFs reported seventeen years ago. Here, we present a universal method for ab initio structure determination of polycrystalline three-dimensional (3D) COFs at atomic level using enhanced cryo-continuous rotation electron diffraction (cryo-cRED), which combines hierarchical cluster analysis with cryo-EM technique. The high-quality datasets possess not only up to 0.79-angstrom resolution but more than 90% completeness, leading to unambiguous solution and precise refinement with anisotropic temperature factors. With such a powerful method, the dynamic structures with flexible linkers, degree of interpenetration, position of functional groups, and arrangement of ordered guest molecules are successfully revealed with atomic precision in five 3D COFs, which are almost impossible to be obtained without atomic resolution structure solution. This study demonstrates a practicable strategy for determining the structures of polycrystalline COFs and other beam-sensitive materials and to help in the future discovery of novel materials on the other.

  • 6.
    Lin, Qing-Fang
    et al.
    Bengbu Med Coll, Dept Chem, Bengbu 233030, Peoples R China..
    Gao, Zihao Rei
    Anhui ZEO New Mat Technol Co, 778 Dongliu Rd, Hefei 230071, Peoples R China.;Consejo Super Invest Cient ICMM CSIC, Inst Ciencia Mat Madrid, C Sor Juana Ines de la Cruz 3, Madrid 28049, Spain..
    Lin, Cong
    Peking Univ, Coll Chem & Mol Engn, Beijing, Peoples R China.;Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Peoples R China..
    Zhang, Siyao
    Bengbu Med Coll, Dept Chem, Bengbu 233030, Peoples R China..
    Chen, Junfeng
    China Univ Petr, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China..
    Li, Zhiqiang
    China Univ Petr, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China..
    Liu, Xiaolong
    Sun Yat Sen Univ, Sch Mat, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China..
    Fan, Wei
    Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA..
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi. Anhui ZEO New Mat Technol Co, 778 Dongliu Rd, Hefei 230071, Peoples R China.;Peking Univ, Coll Chem & Mol Engn, Beijing, Peoples R China.;Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden.
    Chen, Xiaobo
    China Univ Petr, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China..
    Camblor, Miguel A.
    Consejo Super Invest Cient ICMM CSIC, Inst Ciencia Mat Madrid, C Sor Juana Ines de la Cruz 3, Madrid 28049, Spain..
    Chen, Fei-Jian
    Bengbu Med Coll, Dept Chem, Bengbu 233030, Peoples R China..
    A stable aluminosilicate zeolite with intersecting three-dimensional extra-large pores2021Ingår i: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 374, nr 6575, s. 1605-1608Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Zeolites are crystalline porous materials with important industrial applications, including uses in catalytic and adsorption-separation processes. Access into and out of their inner confined space, where adsorption and reactions occur, is limited by their pore apertures. Stable multidimensional zeolites with larger pores able to process larger molecules are in demand in the fine chemical industry and for the oil processing on which the world still relies for fuels. Currently known extra-large-pore zeolites display poor stability and/or lack pore multidimensionality, limiting their usefulness. We report ZEO-1, a robust, fully connected aluminosilicate zeolite with mutually intersecting three-dimensional extra-large plus three-dimensional large pores. ZEO-1 is stable up to 1000 degrees C, has an extraordinary specific surface area (1000 square meters per gram), and shows potential as a catalytic cracking catalyst.

  • 7.
    Lu, Yang
    et al.
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
    Zhong, Haixia
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi.
    Dominic, Anna Maria
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
    Hu, Yiming
    Department of Chemistry, University of Colorado Boulder, Boulder, CO 80309, USA.
    Gao, Zhen
    College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang, 050024, China.
    Jiao, Yalong
    College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang, 050024, China.
    Wu, Mingjian
    Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Interdisciplinary Center for Nanostructured Films (IZNF), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstrasse 3, 91058, Erlangen, Germany, Cauerstrasse 3.
    Qi, Haoyuan
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4; Central Facility of Materials Science Electron Microscopy, Universität Ulm, 89081, Ulm, Germany.
    Huang, Chuanhui
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
    Wayment, Lacey J.
    Department of Chemistry, University of Colorado Boulder, Boulder, CO 80309, USA.
    Kaiser, Ute
    Central Facility of Materials Science Electron Microscopy, Universität Ulm, 89081, Ulm, Germany.
    Spiecker, Erdmann
    Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), Interdisciplinary Center for Nanostructured Films (IZNF), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstrasse 3, 91058, Erlangen, Germany, Cauerstrasse 3.
    Weidinger, Inez M.
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4.
    Zhang, Wei
    Department of Chemistry, University of Colorado Boulder, Boulder, CO 80309, USA.
    Feng, Xinliang
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4; Max Planck Institute for Microstructure Physics, 06120, Halle (Saale), Germany.
    Dong, Renhao
    Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany, Mommsenstrasse 4; Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
    sp-Carbon Incorporated Conductive Metal-Organic Framework as Photocathode for Photoelectrochemical Hydrogen Generation2022Ingår i: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 61, nr 39Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Metal-organic frameworks (MOFs) have attracted increasing interest for broad applications in catalysis and gas separation due to their high porosity. However, the insulating feature and the limited active sites hindered MOFs as photocathode active materials for application in photoelectrocatalytic hydrogen generation. Herein, we develop a layered conductive two-dimensional conjugated MOF (2D c-MOF) comprising sp-carbon active sites based on arylene-ethynylene macrocycle ligand via CuO4 linking, named as Cu3HHAE2. This sp-carbon 2D c-MOF displays apparent semiconducting behavior and broad light absorption till the near-infrared band (1600 nm). Due to the abundant acetylene units, the Cu3HHAE2 could act as the first case of MOF photocathode for photoelectrochemical (PEC) hydrogen generation and presents a record hydrogen-evolution photocurrent density of ≈260 μA cm−2 at 0 V vs. reversible hydrogen electrode among the structurally-defined cocatalyst-free organic photocathodes.

  • 8.
    Subramaniyam, Chandrasekar M.
    et al.
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi, Fiberteknologi.
    Kang, Mina
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Mohammadi, Armin Vahid
    Department of Materials Science and Engineering, A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania, USA.
    Hamedi, Mahiar
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Additive-free red phosphorus/Ti3C2TxMXene nanocomposite anodes for metal-ion batteries2022Ingår i: Energy Advances, E-ISSN 2753-1457, nr 12, s. 999-1008Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Herein, we report on scalable, environmentally benign, and additive-free, high-performance anodes for alkali-metal-ion batteries (MIBs, where M = Li+, Na+, K+). The intercalators in these anodes are the red phosphorus (RP) nanoparticles of uniform size (~40 nm), which are dispersible and blend with water-dispersed Ti3C2Tx MXene, forming a highly viscous aqueous slurry to fabricate additive-free nanocomposite electrodes. We further enhanced their performance using a very low weight percentage of various carbonaceous nanomaterials. Our RP-MWCNT/MXene nanocomposite anodes exhibited enhanced ion transport and low charge transfer resistance, delivering specific capacities of 1293.7 mA h g-1 at 500 mA g-1 and 263.3 mA h g-1 at 2600 mA g-1 for 10 000 cycles in Li+ cells, 371.6 mA h g-1 at 500 mA g-1 in Na+ cells, and 732.8 mA h g-1 at 50 mA g-1 in K+ cells. Our work shows a path towards fabricating nanoarchitectured electrodes using sustainable materials to eliminate inert polymer binders, toxic processing solvents, and rare earth elements from the battery fabrication process for next-generation alkali-metal-ion batteries.

  • 9. Sun, L.
    et al.
    Yang, L.
    Dou, J. -H
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
    Skorupskii, G.
    Mardini, M.
    Tan, K. O.
    Chen, T.
    Sun, C.
    Oppenheim, J. J.
    Griffin, R. G.
    Dincǎ, M.
    Rajh, T.
    Room-Temperature Quantitative Quantum Sensing of Lithium Ions with a Radical-Embedded Metal-Organic Framework2022Ingår i: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 144, nr 41, s. 19008-19016Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Recent advancements in quantum sensing have sparked transformative detection technologies with high sensitivity, precision, and spatial resolution. Owing to their atomic-level tunability, molecular qubits and ensembles thereof are promising candidates for sensing chemical analytes. Here, we show quantum sensing of lithium ions in solution at room temperature with an ensemble of organic radicals integrated in a microporous metal-organic framework (MOF). The organic radicals exhibit electron spin coherence and microwave addressability at room temperature, thus behaving as qubits. The high surface area of the MOF promotes accessibility of the guest analytes to the organic qubits, enabling unambiguous identification of lithium ions and quantitative measurement of their concentration through relaxometric and hyperfine spectroscopic methods based on electron paramagnetic resonance (EPR) spectroscopy. The sensing principle presented in this work is applicable to other metal ions with nonzero nuclear spin.

  • 10.
    Villaescusa, Luis A.
    et al.
    Univ Valencia, Univ Politecn Valencia, Inst Interuniv Invest Reconocimiento Mol & Desarr, Valencia 46022, Spain.;CIBER Bioingn Biomat & Nanomed CIBER BBN, Valencia 46022, Spain.;Univ Politecn Valencia, Dept Quim, Valencia 46022, Spain..
    Li, Jian
    KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi. Stockholm Univ, Berzelii Ctr EXSELENT Porous Mat, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden..
    Mayoral, Alvaro
    Univ Zaragoza, Inst Nanociencia & Mat Aragon INMA CSIC, Zaragoza 50009, Spain.;ShanghaiTech Univ, Sch Phys Sci & Technol, Ctr High Resolut Electron Microscopy ChEM, Lab Microscopias Avanzadas LMA Univ Zaragoza, Shanghai 201210, Peoples R China..
    Gao, Zihao Rei
    Consejo Super Invest Cient ICMM CSIC, Inst Ciencia Mat Madrid, Madrid 28049, Spain..
    Camblor, Miguel A.
    Consejo Super Invest Cient ICMM CSIC, Inst Ciencia Mat Madrid, Madrid 28049, Spain..
    Sandwich-Type Zeolite Intergrowths with MFI and the Novel Extra-Large Pore IDM-1 as Ordered End-Members2021Ingår i: Chemistry of Materials, ISSN 0897-4756, E-ISSN 1520-5002, Vol. 33, nr 19, s. 7869-7877Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Stacking faults are two-dimensional planar defects frequently arising in zeolites, modifying their properties and potentially affecting their performance in catalysis and separation applications. In classical zeolite intergrowths, a topologically unique zeolite layer may often pile up after some spatial transformation (lateral translation, rotation, and/or reflection) that may occur in different amounts or directions with about similar probabilities, leading to a difficult to control disorder. Here, we present a new kind of zeolite intergrowth that requires an additional topologically distinct layer rather than a spatial transformation of a unique one. Stacking of the so-called pentasil layers produces the well-known medium pore zeolite MFI. Intercalation in strict alternation of a topologically distinct second layer sandwiched between pentasil layers expands the structure to produce the new extra-large pore IDM-1. Stacking disorder modulates the structural expansion along the stacking direction. The disordered materials have been studied by simulation of the X-ray diffraction patterns using the program DIFFaX and by Cs-corrected high-resolution electron microscopy. We show that disorder does not occur at random but in extended domains and can be controlled all the way from MFI to IDM-1 by just varying the concentration of the synthesis mixture.

  • 11.
    Xue, Han
    et al.
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Elektroteknik, Elektronik och inbyggda system.
    Huang, Po-Han
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Intelligenta system, Mikro- och nanosystemteknik.
    Göthelid, Mats
    KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Material- och nanofysik.
    Strömberg, Axel
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Elektroteknik, Elektronik och inbyggda system.
    Niklaus, Frank
    KTH, Skolan för elektroteknik och datavetenskap (EECS), Intelligenta system, Mikro- och nanosystemteknik.
    Li, Jian
    Ultrahigh-Rate On-Paper PEDOT:PSS-Ti2C Microsupercapacitors with Large Areal CapacitanceManuskript (preprint) (Övrigt vetenskapligt)
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