首页|Fe-doped Co3O4 nanowire strutted 3D pinewood-derived carbon:A highly selective electrocatalyst for ammonia production via nitrate reduction

Fe-doped Co3O4 nanowire strutted 3D pinewood-derived carbon:A highly selective electrocatalyst for ammonia production via nitrate reduction

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Nitrate(NO3),a nitrogen-containing pollutant,is prevalent in aqueous solutions,contributing to a range of environmental and health-related issues.The electrocatalytic reduction of NO3 holds promise as a sustainable approach to both eliminating NO3 and generating valuable ammonia(NH3).Nevertheless,the reduction reaction of NO3(NO3-RR),involving 8-electron transfer process,is intricate,necessitating highly efficient electrocatalysts to facilitate the conversion of NO3 to NH3.In this study,Fe-doped Co3O4 nanowire strutted three-dimensional(3D)pinewood-derived carbon(Fe-Co3O4/PC)is proposed as a high-efficiency NO3-RR electrocatalyst for NH3 production.Operating within 0.1 M NaOH containing NO3-,Fe-Co3O4/PC demonstrates exceptional performance,obtain an impressively large NH3 yield of 0.55 mmol h-1·cm-2 and an exceptionally high Faradaic efficiency of 96.5％at-0.5 V,superior to its Co3O4/PC counterpart(0.2 mmol-h-1·cm-2,73.3％).Furthermore,the study delves into the reaction mechanism of Fe-Co3O4 for NO3-RR through theoretical calculations.

Fe-doped Co3O4 nanowirepinewood-derived carbonelectrocatalytic NO3 reductionNH3 synthesisdensity functional theory

Xuwei Liu、Chaozhen Liu、Xun He、Zhengwei Cai、Kai Dong、Jun Li、Xiaoya Fan、Ting Xie、Xiya Yang、Yonglan Luo、Dongdong Zheng、Shengjun Sun、Sulaiman Alfaifi、Feng Gong、Xuping Sun

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Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education,School of Energy and Environment,Southeast University,Nanjing 211189,China

College of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,China

Chemistry Department,Frontier of Science,King Abdulaziz University,Jeddah 21589,Saudi Arabia

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2024

10.1007/s12274-023-6204-y

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.17(4)
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