Heterojunctions of silver-iron oxide on graphene for laser-coupled oxygen reduction reactions

被引：21
作者：
Chen, Wei-Quan [1 ]
Chung, Min-Chuan [1 ]
Valinton, Joey Andrew A. [1 ]
Penaloza, David P., Jr. [2 ]
Chuang, Shiow-Huey [3 ]
Chen, Chun-Hu [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Chem, Kaohsiung 80424, Taiwan
[2] De La Salle Univ, Coll Sci, Dept Chem, Manila 1004, Philippines
[3] Natl Univ Kaohsiung, Dept Appl Chem, Kaohsiung, Taiwan
来源：
CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 57期
关键词：
ALKALINE MEDIA; ELECTROCATALYSTS; AG; NANOPARTICLES; CATALYSTS; ELECTROLYTE; PERFORMANCE; COMPOSITES; MECHANISMS;
D O I：
10.1039/c8cc03136c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report a two-step hybridization of N-doped graphene and Ag-decorated Fe2O3 hematite to realize a balanced oxygen adsorption/desorption equilibrium and a laser-coupled ORR (LORR). The stable plateau currents with n values of 3.9 in a wide potential range (0.2-0.7 V) and 7.5% peroxide inhibition of the LORR are found to be directly associated with the Ag/Fe2O3 heterojunction, where interactions of semiconductor band gap excitation and plasmonic resonance-induced hot electrons are proposed to occur.
引用
收藏
页码：7900 / 7903
页数：4
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