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Mesoporous WO3 modified by Mo for enhancing reduction of CO2 to solar fuels under visible light and thermal conditions
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2016 (English)In: Integrated Ferroelectrics, ISSN 1058-4587, E-ISSN 1607-8489, Vol. 172, no 1, 97-108 p.Article in journal (Refereed) PublishedText
Abstract [en]

Mesoporous WO3 (m-WO3) was synthesized by a hydrothermal method using mesoporous silica KIT-6 as a hard template and silicotungstic acid as a precursor. The m-WO3 modified by molybdenum (Mo) nanoparticles could be used as a stable catalyst for photo-thermal inducing CO2 reducting reactions for solar fuels. Under visible light irradiation (lambda > 420 nm) and 250-, the catalytic activity of m-Mo/WO3 for the CH4 and CH3 OHevolution was found to be higher than that of m-WO3 and commercial WO3. The amount of evolved CH3OH from m-Mo/WO3 has reached 13.80 mu molg(-1) in 1 2 h, which is ca. 10 times as high as that of c-WO3 (1.36 mu molg(-1)) and 6.5 times as high as that of m-WO3 (2.12 mu molg(-1)), making it attractive for practical applications.

Place, publisher, year, edition, pages
Taylor & Francis, 2016. Vol. 172, no 1, 97-108 p.
Keyword [en]
Mesoporous structure, WO3, photo-thermal reaction, CO2 reduction
National Category
Nano Technology
URN: urn:nbn:se:kth:diva-190688DOI: 10.1080/10584587.2016.1176507ISI: 000379260300012ScopusID: 2-s2.0-84975063145OAI: diva2:952591
14th China International Nanoscience and Technology Symposium / Nano-products Exposition, OCT 25-29, 2015, Chengdu, PEOPLES R CHINA

QC 20160815

Available from: 2016-08-15 Created: 2016-08-12 Last updated: 2016-08-15Bibliographically approved

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