Identifying the crystal and electronic structure evolution in tri-component transition metal oxide nanosheets for efficient electrocatalytic oxygen evolution
學年 108
學期 1
出版（發表）日期 2019-11-23
作品名稱 Identifying the crystal and electronic structure evolution in tri-component transition metal oxide nanosheets for efficient electrocatalytic oxygen evolution
作品名稱（其他語言）
著者 X. Zhang; C. L. Dong; Z. Diao; Y. R. Lu; S. Shen
單位
出版者
著錄名稱、卷期、頁數 EcoMat 1(1)
摘要 Transition metal oxides (TMOs) nanosheets comprised of earth abundant Fe, Co,and Ni elements have been designed. Remarkably, the tri-component NiCoFeOx/Nifoam (NF) electrode delivers a high current density of 100 mA cm−2at an over-potential of only ≈383 mV for oxygen evolution reaction (OER), with prolongedelectrochemical stability. The improved OER activity of NiCoFeOx/NF can beascribed to the simultaneous incorporation of Ni and Co into FeOx/NF, boostingthe intrinsic catalytic activities by altering the crystal and electronic structures.With electron redistribution happening in the tri-component NiCoFeOx/NF, theelectron transfer from Co to Ni through the Fe acting as the electron transferbridge renders Co more acidic (Lewis acid) to activate H2O (Lewis base) moleculesthrough Lewis acid-base interaction. By identifying the interactions of Fe, Co, andNi and electron redistribution in the tri-component TMOs, this study providesnew insights into the crystal and electronic structure evolution of tri-componentNiCoFeOxcatalysts for active electrocatalysis.
關鍵字 crystal structures;electrocatalytic water splitting;electronic structures;oxygen evolutionreaction;transition metal oxides
語言 en
ISSN 2567-3173
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度 否
國別 DEU
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/118685 )