Kinetics studies of hydrogen reduction of Cu2O
2006 (English)In: Zeitschrift für Metallkunde, ISSN 0044-3093, Vol. 97, no 1, 72-78 p.Article in journal (Refereed) Published
In present work, reduction kinetics Of Cu2O by hydrogen gas was studied by thermogravimetric analyses (TGA). The TGA experiments were carried out both isothermally and non-isothermally on shallow powder beds. It was established that additions of Ni or NiO did not have any serious effect on the kinetics of reduction of Cu2O. The composition and microstructures of the reaction products were analyzed after each experiment by X-ray diffraction (XRD) as well as by scanning electron microscopy (SEM). The activation energy for the reaction was evaluated from isothermal as well as non-isothermal reduction experiments and was found to be in good agreement. The impact of the stability of the oxide on the activation energy for hydrogen reduction is also discussed.
Place, publisher, year, edition, pages
2006. Vol. 97, no 1, 72-78 p.
copper oxide, hydrogen reduction, kinetics, activation energy, cuo, oxides, powder, gas, tungstate
IdentifiersURN: urn:nbn:se:kth:diva-15460ISI: 000235609500012ScopusID: 2-s2.0-32644471395OAI: oai:DiVA.org:kth-15460DiVA: diva2:333501
QC 201005252010-08-052010-08-052010-12-22Bibliographically approved