首页|Comprehensive understanding of the thriving electrocatalytic nitrate/nitrite reduction to ammonia under ambient conditions

Comprehensive understanding of the thriving electrocatalytic nitrate/nitrite reduction to ammonia under ambient conditions

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Ammonia(NH3)is a multifunctional compound that is an important feedstock for the agricultural and pharmaceutical industries and attractive energy storage medium.At present,NH3 synthesis is highly dependent on the conventional Haber-Bosch process that operates under harsh conditions,which con-sumes large quantities of fossil fuels and releases a large amount of carbon dioxide.As an alternative,electrosynthesis is a prospective method for producing NH3 under normal temperature and pressure con-ditions.Although electrocatalytic nitrogen reduction to ammonia has attracted considerable attentions,the low solubility of N2 and high N=N cracking energy render the achievements of high NH3 yield rate and Faradaic efficiency difficult.Nitrate and nitrite(NOx-)are common N-containing pollutants.Due to their high solubilities and low dissociation energy of N=O,NOx-are ideal raw materials for NH3 pro-duction.Therefore,electrocatalytic NOx-reduction to NH3(eNOxRR)is a prospective strategy to simulta-neously realise environmental protection and NH3 synthesis.This review offers a comprehensive understanding of the thriving eNOxRR under ambient conditions.At first,the popular theory and mech-anism of eNOxRR and a summary of the measurement system and evaluation criteria are introduced.Thereafter,various strategies for developing NOx-reduction catalysts are systematically presented and discussed.Finally,the challenges and possible prospects of electrocatalytic NOx-reduction are outlined to facilitate energy-saving and environmentally friendly large-scale synthesis of NH3 in the future.

Electrocatalytic nitrate reductionElectrocatalytic nitrite reductionAmmonia synthesisPollutant removalElectrosynthesis

Xinying Zhao、Yuzhuo Jiang、Mengfan Wang、Yunfei Huan、Qiyang Cheng、Yanzheng He、Tao Qian、Chenglin Yan

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Collaborative Innovation Center of Suzhou Nano Science and Technology,College of Energy,Soochow University,Suzhou 215006,Jiangsu,China

School of Chemistry and Chemical Engineering,Nantong University,Nantong 226019,Jiangsu,China

School of Petrochemical Engineering,Changzhou University,Changzhou 213164,Jiangsu,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaDistinguished Young Scholars Fund of Jiangsu ProvinceFellowship of China Postdoctoral Science Foundation

U21A2033252103226522022755220331412204253BK202200612021M702382

2024

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子:0.654
ISSN:2095-4956
年,卷(期):2024.92(5)