Surface-Regulated Rhodium–Antimony Nanorods for Nitrogen Fixation
Nan Zhang1,2, Leigang Li1, Juan Wang1, Zhiwei Hu3, Qi Shao1, Xiangheng Xiao2, and Xiaoqing Huang1,*（黄小青）
1College of Chemistry, Chemical Engineering and Materials Science Soochow University,Suzhou 215123, Jiangsu (China)
2Department of Physics and Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, Hubei Nuclear Solid Physics Key Laboratory, Wuhan University,Wuhan 430072, Hubei (China)
3Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
Angew. Chem. Int. Ed.2020,59, 8066--8071
Surface regulation has been proven to be an effective strategy to improve the performance of catalysts, but it has been rarely demonstrated for nitrogen reduction reaction (NRR) up to date. Herein, we have selectively created surface-rough Rh 2 Sb nanorod (RNR) and surface-smooth Rh 2 Sb NR (SNR), and investigated their performance for NRR. We found that the high-index-facet bounded Rh 2 Sb RNRs/C exhibit a high NH 3 yield rate of 228.85 ± 12.96 µg h -1 mg -1 Rh at -0.45 V versus reversible hydrogen electrode (RHE), outperforming the Rh 2 Sb SNRs/C (63.07 ± 4.45 µg h -1 mg -1 Rh ) and Rh nanoparticles/C (22.82 ± 1.49 µg h -1 mg -1 Rh ), due to the enhanced adsorption and activation of N 2 on high-index facets. Rh 2 Sb RNRs/C also show durable stability with negligible activity decay after 10 h of successive electrolysis. The present work demonstrates that surface regulation plays an important role in promoting NRR activity and provides a new strategy for creating efficient NRR electrocatalysts.