Preparation of nanostructured Cu/Zr metal mixed oxides via self-sustained oxidation of a CuZr binary amorphous alloy
Preparation of nanostructured Cu/Zr metal mixed oxides via self-sustained oxidation of a CuZr binary amorphous alloy作者机构:School of Materials Science and EngineeringJiangsu Key Laboratory for Advance Metallic MaterialsSoutheast University
出 版 物:《Journal of Materials Science & Technology》 (材料科学技术(英文版))
年 卷 期:2019年第35卷第8期
页 面:1601-1606页
核心收录:
学科分类:08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:financial support from the National Natural Science Foundation of China (No. 51671056) Jiangsu Key Laboratory for Advanced Metallic Materials (No. BM2007204)
主 题:Amorphous alloys Cuprous oxide Degradation Oxidation
摘 要:We propose and demonstrate for the first time an approach to synthesize nanostructured photocatalysts through combustion of metal alloys in amorphous state. This approach takes advantage of metastable state and composition homogeneity of amorphous alloys and produce photocatalysts with uniformly dispersed oxides at nanoscale by self-propagating reactions. Using CuZr amorphous ribbons as an example,we demonstrate a photocatalyst containing copper oxides and ZrO2 in the form of 10 nm-thick nanosheet with 2 nm nanopores. The new catalyst substantially outperforms those previously reported copper oxide catalysts in experiments of photocatalytic degradation of methylene blue and direct methanol fuel *** study opens up an avenue to fabricate nanostructured functional oxides in an environment friendly approach not only for photocatalyst but also for oxide based nanoelectronic and nanoionic applications.