Solar hydrogen production from electrochemical ammonia splitting powered by a single perovskite solar cell

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外文摘要：For carbon-free electrochemical fuel formation,the electrochemical cell must be powered by renewable energy.Obtaining solar-powered H2 fuel from water typically requires multiple photovoltaic cells and/or junctions to drive the water splitting reaction.Because of the lower thermodynamic requirements to oxi-dize ammonia compared to water,solar cells with smaller open circuit voltages can provide the required potential for ammonia splitting.In this work,a single perovskite solar cell with an open-circuit potential of 1.08 V is coupled to a 2-electrode electrochemical cell employing hybrid electroanodes functionalized with Ru-based molecular catalysts.The device is active for more than 30 min,producing N2 and H2 in a 1:2.9 ratio with 89％faradaic efficiency with no external applied bias.This work illustrates that hydrogen production from ammonia can be driven by conventional semiconductors.

外文关键词：

Ammonia oxidationRedox catalysisPerovskitesSolar fuelsTransition metal complexes

作者：

Anna M.Beiler、Wenhui Li、Alisa Denisiuk、Emilio Palomares、Antoni Llobet

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作者单位：

Institute of Chemical Research of Catalonia(ICIQ).Barcelona Institute of Science and Technology(BIST),43007 Tarragona,Spain

Catalan Institution for Research and Advanced Studies(ICREA),08010 Barcelona,Spain

Departament de Química,Universitat Autònoma de Barcelona,Cerdanyola del Vallès,08193 Barcelona,Spain

基金：

Ministerio de Ciencia e Innovación through projects PID2022-140143OB-I00SO-CEX2019-000925-SMarie Sk?odowska-Curie Actions Individual Fellowship grantMSCA-COFUND I2:ICIQ Impulsion

项目编号：

MCIN/AEI/10.13039/501100011033MCIN/AEI/10.13039/5011000110101031365-SolTIMEGA 801474

出版年：

2024

DOI：

10.1016/j.jechem.2023.12.032

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)