| Promotion of the oxygen evolution performance of Ni–Fe layered hydroxides via the introduction of a proton-transfer mediator anion |
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| 引用本文： | Wenlong Li,Fusheng Li,Yilong Zhao,Chang Liu,Yingzheng Li,Hao Yang,Ke Fan,Peili Zhang,Yu Shan,Licheng Sun. Promotion of the oxygen evolution performance of Ni–Fe layered hydroxides via the introduction of a proton-transfer mediator anion[J]. 中国科学:化学(英文版), 2022, 0(2): 382-390 |
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| 作者姓名： | Wenlong Li Fusheng Li Yilong Zhao Chang Liu Yingzheng Li Hao Yang Ke Fan Peili Zhang Yu Shan Licheng Sun |
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| 作者单位： | State Key Laboratory of Fine Chemicals;Department of Chemistry;Center of Artificial Photosynthesis for Solar Fuels |
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| 基金项目： | financially supported by the National Natural Science Foundation of China(22172011 and 22088102);the K&A Wallenberg Foundation(KAW 2016.0072);Key Laboratory of Bio-based Chemicals of Liaoning Province of China。 |
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| 摘 要： | Developing efficient catalysts with high durability and activity for the oxygen evolution reaction(OER)is imperative for sustainable energy conversion technologies,including hydrogen generation and CO2 reduction,as well as other electrochemical energy storage systems.To this end,a comprehensive understanding of the mechanism for the water oxidation reaction is vital.Herein,a surfactant,nonafluoro-1-butanesulfonate(FBS),was introduced into Ni-Fe layered double hydroxide(Ni Fe-FBS/CFP)via electrochemical deposition on the surface of a carbon fiber paper(CFP)substrate.The as-prepared Ni Fe-FBS/CFP electrode exhibited excellent catalytic activities for OER compared to the Ni-Fe layered double hydroxide based electrode(Ni Fe-LDH/CFP),an excellent stability of 15 h,and an ultralow Tafel slope of 25.8 m V dec-1.Furthermore,by combining the results of p H-dependent kinetics investigations,chemical probing,proton inventory studies,and isotopic and atom-protontransfer measurements,it was observed that a proton-transfer process controls the reaction rates of both the Ni Fe-LDH and Ni Fe-FBS catalysts,and the residual sulfonate groups serve as proton transfer mediator to accelerate the proton transfer rate.
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| 关 键 词： | water splitting Ni Fe–LDH proton-coupled electron transfer proton transfer mediator sulfonate group |
Promotion of the oxygen evolution performance of Ni-Fe layered hydroxides via the introduction of a proton-transfer mediator anion |
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| Wenlong Li,Fusheng Li,Yilong Zhao,Chang Liu,Yingzheng Li,Hao Yang,Ke Fan,Peili Zhang,Yu Shan,Licheng Sun. Promotion of the oxygen evolution performance of Ni-Fe layered hydroxides via the introduction of a proton-transfer mediator anion[J]. Science China Chemistry, 2022, 0(2): 382-390 |
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| Authors: | Wenlong Li Fusheng Li Yilong Zhao Chang Liu Yingzheng Li Hao Yang Ke Fan Peili Zhang Yu Shan Licheng Sun |
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| Abstract: | Developing efficient catalysts with high durability and activity for the oxygen evolution reaction(OER)is imperative for sustainable energy conversion technolog... |
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