Research Article In situ reconstruction induced oxygen-deficient multiphase Cu based species hybridized with Ni single atoms as tandem platform for CO_(2) electroreduction

查看全文 作　　者：Juzhe [1]Liu;Yuheng [1]Wang;Pengpeng [1]Mo;Feng [1]Yang;Kaiqi [1]Jiang;Zhixiang [1]Cheng;Yuxuan [1]Liu;Zhiyi [2]Sun;Zheng [3,4]Liu;Yimei [1]Zhang;Wenxing [2]Chen

机构地区：[1]The Key Laboratory of Resources and Environmental System Optimization,Ministry of Education,College of Environmental Science and Engineering,North China Electric Power University,Beijing 102206,China;[2]Energy&Catalysis Center,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;[3]State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;[4]SEPA Key Laboratory of Eco-Industry,Chinese Research Academy of Environmental Sciences,Beijing 100012,China

出　　处：《Nano Research》索引2024年第17卷第5期,共7页

基　　金：supported by the National Natural Science Foundation of China(Nos.52302092,22375019);the Beijing Natural Science Foundation(No.2212018);the Beijing Institute of Technology Research Fund Program for Young Scholars(No.2022CX01011);the Fundamental Research Funds for the Central Universities(Nos.2023MS057 and JB 2022004);the Open Research Fund of State Environmental Protection Key Laboratory of Eco-industry,Chinese Research Academy of Environmental Sciences(No.2022KFF-07). 摘　　要：Tandem catalysis,capable of decoupling individual steps,provides a feasible way to build a high-efficiency CO_(2) electro-conversion system for multicarbons(C_(2+)).The construction of electrocatalytic materials is one of focusing issues.Herein,we fabricated a single atom involved multivalent oxide-derived Cu composite material and found it inclined to reconstruct into oxygen-deficient multiphase Cu based species hybridized with monatomic Ni on N doped C matrix.In this prototype,rapid CO generation and C-C coupling are successively achieved on NiN4 sites and surface amorphized Cu species with defects,resembling a micro-production line.In this way,the in situ formed tandem catalyst exhibited a high Faradaic efficiency(FE)of~78%for C_(2+)products along with satisfactory durability over 50 h.Particularly,the reconstruction-induced amorphous layer with abundant asymmetric sites should be favorable to improve the ethanol selectivity(FE:63%),which is about 10 times higher than that of the non-tandem Cu-based contrast material.This work offers a new approach for manipulating tandem catalyst systems towards enhancing C_(2+)products. 关键词：tandem catalysis single atom RECONSTRUCTION amorphous CO_(2)reduction reaction

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Research Article In situ reconstruction induced oxygen-deficient multiphase Cu based species hybridized with Ni single atoms as tandem platform for CO_(2) electroreduction

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