Charge-acquired Pb2+ boosts actively and selectively electrochemical carbon dioxide reduction reaction to formate

doi:10.1016/j.apcatb.2023.122404

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/125739

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题名:	Charge-acquired Pb2+ boosts actively and selectively electrochemical carbon dioxide reduction reaction to formate
作者:	Zhang, Ningce;Li, Daohao;Wang, Xiaoxia;Cai, Rongsheng;Dong, Chung-Li;Nga, Ta Thi Thuy;Zhang, Lijie;Yang, Dongjiang
日期:	2023-06-05
上传时间:	2024-07-31 12:11:16 (UTC+8)
出版者:	Elsevier
摘要:	For lead carbonate-based (PbCO3) carbon dioxide reduction reaction (CO2RR) electrocatalysts, the electron-deficiency of Pb2+ active sites adverse to activate CO2 and generate HCOO intermediates hinder the active and selective CO2RR to formate. In this work, the Co modified (heterojunction and doping) PbCO3 electrocatalyst is constructed with prominent catalytic activity and high formate selectivity (Faradaic efficiency about 98.15% at −0.70 V vs. RHE). The in-depth experimental and theoretical analyses reveal that the Co-PbCO3 interaction can enable the electron of Co transfer to Pb2+, leading to the charge-acquired Pb2+ (CA-Pb2+). Its highly catalytic activity and selectivity of formate is attributed to the reduced formation energy barrier and enhanced adsorption behavior of HCOO* intermediate. The in-situ attenuated total reflection surface-enhanced infrared absorption spectroscopy demonstrates HCOO* intermediate is more likely to generate and adsorb on CA-Pb2+ than Pb2+, verifying the charge acquisition of Pb2+ enhances the activity and selectivity of formate product.
關聯:	Applied Catalysis B: Environmental 326, 122404
DOI:	10.1016/j.apcatb.2023.122404
显示于类别:	[電機工程學系暨研究所] 期刊論文

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