Surface‐Regulated Rhodium–Antimony Nanorods for Nitrogen Fixation | Zendy

Zhang Nan | Zendy; Li Leigang | Zendy; Wang Juan | Zendy; Hu Zhiwei | Zendy; Shao Qi | Zendy; Xiao Xiangheng | Zendy; Huang Xiaoqing | Zendy

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Surface‐Regulated Rhodium–Antimony Nanorods for Nitrogen Fixation

Author(s) -

Zhang Nan,

Li Leigang,

Wang Juan,

Hu Zhiwei,

Shao Qi,

Xiao Xiangheng,

Huang Xiaoqing

Publication year - 2020

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201915747

Subject(s) - nanorod , chemistry , catalysis , molar ratio , rhodium , antimony , adsorption , nitrogen , redox , electrolysis , reversible hydrogen electrode , nuclear chemistry , inorganic chemistry , electrode , nanotechnology , materials science , electrochemistry , organic chemistry , reference electrode , electrolyte

Surface regulation is an effective strategy to improve the performance of catalysts, but it has been rarely demonstrated for nitrogen reduction reaction (NRR) to date. Now, surface‐rough Rh 2 Sb nanorod (RNR) and surface‐smooth Rh 2 Sb NR (SNR) were selectively created, and their performance for NRR was investigated. 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 ), owing 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.

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