Ru single atoms and nanoparticles on carbon nanotubes as multifunctional catalysts

Dalton Transactions : an International Journal of Inorganic Chemistry
Diana M FernandesCristina Freire

Abstract

In the last decade we have witnessed increasing interest in the production of renewable energy and value-added chemicals through sustainable and low-cost technologies where catalysts play a crucial role. Herein, we report the application of a Ru/CNT material containing a mixture of Ru single atoms and Ru nanoparticles as a multifunctional catalyst for both the catalytic reduction of nitroarenes and the electrocatalytic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The catalytic activity of the Ru-CNT material was evaluated in the reduction of 4-nitrophenol (4-NP), 4-nitroaniline (4-NA) and 2-nitrophenol (2-NP) in the presence of sodium borohydride as a reducing agent at room temperature, showing high catalytic activity with normalized rate constants (knor) of 19.0 × 103, 57.7 × 103 and 16.6 × 103 min-1 mmol-1 respectively. Furthermore, the catalyst could be reused in at least 10 cycles without catalytic activity loss, confirming the high stability and robustness of the material. The Ru/CNT material also showed good ORR electrocatalytic activity in alkaline medium with Eonset of 0.76 V vs. RHE, a diffusion-limited current density of 3.89 mA cm-2 and ñO2 of 3.3. In addition, Ru/CNT was remarkably insensitiv...Continue Reading

References

Jan 24, 2013·Angewandte Chemie·Yao ZhengShi Zhang Qiao
Jul 3, 2013·Accounts of Chemical Research·Xiao-Feng YangTao Zhang
Feb 13, 2015·Chemical Society Reviews·Yan JiaoShi Zhang Qiao
Jan 14, 2017·Chemical Society Reviews·Nian-Tzu SuenHao Ming Chen
May 26, 2017·Angewandte Chemie·Chengzhou ZhuYuehe Lin
May 18, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Diana M FernandesCristina Freire
May 22, 2019·Chemical Society Reviews·Qiurong ShiYuehe Lin
Oct 3, 2019·Chemical Reviews·Iann C Gerber, Philippe Serp
Jan 4, 2020·Chemical Reviews·M Rosa Axet, Karine Philippot
May 20, 2020·Research : a Science Partner Journal·Qingyuan BiFuqiang Huang

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