期刊
NEW JOURNAL OF CHEMISTRY
卷 41, 期 18, 页码 9658-9667出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj01221g
关键词
-
资金
- Department of Science and Technology (DST) Science and Engineering Research Board (SERB) Fast-track grant, Government of India [SB/FT/CS-042/2012]
- University Grants Commission (UGC) special assistance program, Government of India
- DST-FIST program, Government of India
- Department of Science and Technology (DST) Inspire program [DST/INSPIRE/04/2015/00039]
- DST-FIST
Herein, we propose the synthesis of Pd and Pt monometallic nanoparticles on a carbon nitride (C3N4) surface for the reduction of nitro compounds as well as for electrocatalysis. For the synthesis of C3N4/Pd and C3N4/Pt, metal ions were initially adsorbed on the C3N4 surface and then subsequently reduced by NaBH4. The as-synthesized heterostructures were authenticated by different characterization techniques: UV-vis, PXRD, XPS, TEM, FESEM, and EDS. Decorations of monometallic NPs on C3N4 not only improved the reduction efficiency of nitro-compounds but also enhanced the electrocatalytic activity in the hydrogen evolution reaction. C3N4/Pt proved to be an efficient electrocatalyst as it requires a potential of -0.339 V to attain a current density of 10 mA cm(-2); whereas, C3N4/Pd requires -0.371 V to reach a current density of 10 mA cm(-2) vs. Ag/AgCl. Both C3N4/Pd and Pt heterostructures are better than bare C3N4, which needs -0.596 V to achieve a current density of 10 mA cm(-2) vs. Ag/AgCl. On the other hand, C3N4/Pd showed a better performance in nitro-compound reduction compared to C3N4/Pt and bare C3N4. The kinetic study reveals that the rate constant using a C3N4/Pd catalyst is 6.7 x 10(-1) min(-1) for p-nitroaniline reduction, which is 101 times higher compared to bare C3N4 and 4.7 times higher in comparison to C3N4/Pt.
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