Zhang Qing, Han Wenjie, Xu Zhixiao, Li Yinling, Chen Lu, Bai Zhengyu, Yang Lin, Wang Xiaolei
Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 PR China
Department of Chemical and Materials Engineering, University of Alberta Edmonton Alberta T6G 1H9 Canada
RSC Adv. 2020 Jul 24;10(46):27788-27793. doi: 10.1039/d0ra03222k. eCollection 2020 Jul 21.
With the aggravation of the energy crisis, increasing attention has been paid to electrocatalytic technology for renewable energy devices. In particular, the research on catalysts towards the oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER) has become more urgent, and the development of multifunctional electrocatalysts has become a research trend. Here we report the synthesis of waxberry-like cobalt-nickel oxide/S,N-codoped carbon hollow nanocomposites as trifunctional catalysts. Uniform cobalt-nickel glycerate solid spheres are first synthesized as the precursor and subsequently chemically transformed into cobalt-nickel oxide/S,N-codoped carbon hollow nanospheres. Benefiting from the synergistic coupling of cobalt-nickel oxide and S,N-codoped carbon nanocomposites, hierarchical porosity and hollow structure, the cobalt-nickel oxide/S,N-codoped carbon nanohybrids exhibit superior trifunctional electrocatalytic activity and durability towards OER, ORR, and HER in alkaline media.
随着能源危机的加剧，可再生能源装置的电催化技术受到越来越多的关注。特别是，针对析氧反应（OER）、氧还原反应（ORR）和析氢反应（HER）的催化剂研究变得更加迫切，多功能电催化剂的开发已成为一种研究趋势。在此，我们报道了杨梅状钴镍氧化物/S，N共掺杂碳空心纳米复合材料作为三功能催化剂的合成。首先合成均匀的甘油酸钴镍固体球作为前驱体，随后将其化学转化为钴镍氧化物/S，N共掺杂碳空心纳米球。得益于钴镍氧化物与S，N共掺杂碳纳米复合材料的协同耦合、分级孔隙率和空心结构，钴镍氧化物/S，N共掺杂碳纳米杂化物在碱性介质中对OER、ORR和HER表现出优异的三功能电催化活性和耐久性。
