Lattice confined Ru single sites in hollow Co_(9)S_(8)polyhedron triggering Co-S-Ru catalytic centers for rechargeable Zn-air battery
作者机构：School of Chemical EngineeringDalian University of TechnologyPanjin CampusPanjin 124221China School of Material and Chemical EngineeringCenter for Advanced Materials ResearchZhongyuan University of TechnologyZhengzhou 450007China School of Materials Science and EngineeringNorth China University of Water Resources and Electric PowerZhengzhou 450045China School of Physics and Electronic Electrical EngineeringHuaiyin Normal UniversityHuai’an 223300China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第5期
页 面：6701-6709页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：the National Natural Science Foundation of China(No.21902189) Key Scientific Research Projects of Universities in Henan Province(No.21A150062) Young Backbone Teacher of Zhongyuan University of Technology(No.2020XQG09) the Fundamental Research Funds of Zhongyuan University of Technology(No.K2020YY003)
主 题：electrocatalysis single-atom catalysts lattice confinement bifunctional catalysts Zn-air battery
摘 要：Single-atom catalysts with precise structure and tunable coordination nature provide opportunities for developing novel catalytic centers and understanding reaction ***,hollow Co_(9)S_(8)polyhedrons with lattice-confined Ru single atoms(Ru-Co_(9)S_(8))are ***-corrected scanning transmission electron microscopy and X-ray absorption spectroscopy verify the isolated Ru atoms are confined in Co_(9)S_(8)to form Co-S-Ru catalytic *** calculations indicate that the oxygen evolution reaction(OER)and oxygen reduction reaction(ORR)energy barriers are extensively reduced,the d-band center of Co_(9)S_(8)downshifts from the Fermi level,therefore boosting the desorption of O-containing ***,the Ru-Co_(9)S_(8)exhibits an ultralow overpotential of 163 mV at 10 mA·cm^(−2)for OER and could catalyze a rechargeable Zn-air battery with a high-power density of 92.0 mW·cm^(−2).This work provides a promising approach for designing novel bifunctional catalytic active centers for energy conversion.
维普期刊数据库