双金属片
纳米尺度
大气压力
镍
催化作用
合金
硼氢化钠
介孔材料
材料科学
铜
格式化
选择性
选择性还原
无机化学
冶金
化学工程
化学
纳米技术
有机化学
地质学
工程类
海洋学
作者
Yi Zhao,Tianhao Wang,Yongbin Wang,Runlong Hao,Han Wang,Yangyang Han
标识
DOI:10.1016/j.jiec.2019.04.051
摘要
Carbon dioxide (CO2) was converted into formate (HCO2−) in a catalytic reduction system mainly composed of potassium borohydride (KBH4) and nanoscale bimetallic nickel–copper alloy (NBN–C), in which, the average CO2 conversion efficiency of 41.92% was obtained under the optimal experimental conditions, with a HCO2− selectivity of 53.42%. Various characterization methods were employed to investigate the physicochemical properties of NBN–C and the results indicated that NBN–C was a core-shell mesoporous catalyst with key active sites containing Ni0 and Cu0, at which the catalytic reduction of CO2 took place. The reaction mechanism was proposed based on these characterizations and relevant literatures.
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