期刊
ACS APPLIED NANO MATERIALS
卷 1, 期 11, 页码 6038-6045出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.8b01084
关键词
cuprous oxide; hollow polyhedron; assembly; photocatalysis; electrocatalysis
资金
- National Natural Science Foundation of China [21773133]
- college student innovation and entrepreneurship training program
- Taishan Scholars Advantageous and Distinctive Discipline Program
The structure regulation of cuprous oxide (Cu2O) has been realized from submicrometric cubes to irregular hollow polyhedrons and hollow truncated octahedrons. It is suggested that the evolution of Cu2O exotic morphology and hollow structure are caused by an inside out Ostwald ripening mechanism in the synthetic system, followed by the induced formation of eight (111) and six (100) planes of a hollow truncated octahedron, while a Cu2O cube with six (100) planes is formed quickly via directed attachment in a weak reduction environment. Photocatalysis of methyl orange indicated that the (111) planes of a hollow truncated octahedron showed higher catalytic activities than the (100) planes of both structures. However, both the (100) and (111) planes in a Cu2O cube or hollow truncated octahedron display high electrocatalytic activities toward the reduction of nitrobenzene. A glassy-carbon electrode modified by Cu2O hollow truncated octahedrons showed that the highest catalytic current was 401.8 mu A with the most negative potential at -0.82 V due to the small size and hollow nature among these Cu2O particles. The formation of Cu2O cubes and hollow polyhedrons and their structure-property relationship have been studied on the basis of the experimental data.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据