首页|电解水制氢耦合有机物氧化研究进展

电解水制氢耦合有机物氧化研究进展

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利用可再生能源(太阳能、风能)驱动的电解水制氢技术是获取"绿氢"的必经之路,是实现碳中和的重要战略措施.然而,目前电解水制氢技术仍面临电解效率低和能耗高等问题.其原因之一在于阳极析氧反应(OER)动力学过程缓慢,制约了阴极产氢,并且阳极产物氧气的附加值较低.利用电解水过程中阳极产生的"活性氧"物种催化有机物选择性氧化(替代OER),被证明是能够降低电解水反应电压、提高产氢效率的有效策略,并且利用阳极得到高附加值化学品可以进一步分摊并降低制氢成本,最近受到科研界和产业界的广泛关注.基于此,总结了近年来电解水制氢耦合有机物氧化方面的研究进展,包括:阳极表面水活化产生活性氧的种类及其催化有机氧化反应机理、反应物吸附过程强化提升反应速率相关策略、电解水制氢耦合氧化反应器设计和产物分离等技术.最后,对该领域的未来发展前景和面临的挑战进行了总结和展望.
RESEARCH PROGRESS IN ELECTROCATALYTIC ORGANIC OXIDATION COUPLED WITH HYDROGEN PRODUCTION
Electrocatalytic water splitting driven by clean energy(e.g.,solar,wind)is the most promising green ways for hydrogen(H2)production.However,this process still suffers from the problem of high energy consumption.One of the main"bottlenecks"for water splitting is the sluggish four-electron OER while the generated O2 is not of significant value.Electrocatalytic organic oxidation coupled with H2 production has been proven to be an attractive approach to produce high-value-added chemicals at anode and facilitate coupled H2 production at cathode.This review provided a comprehensive summary of the recent advances in electrocatalytic organic oxidation coupled with H2 production,including the types of"active oxygen"and the reaction mechanism for catalytic organic oxidation,the strategies to enhance the reaction rate by reactants enrichment,and the design of appropriate reaction equipment.Finally,the potential prospects and challenges in this emerging electrocatalytic field were discussed,aiming to stimulate the development of H2 production from electrocatalytic water splitting.

electrocatalytic water splittingactive oxygen speciescoupling reactionorganic oxidationreactant enrichment

夏天、栗振华、邵明飞、段雪

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北京化工大学化学学院,化工资源有效利用全国重点实验室,北京 100029

衢州资源化工创新研究院

电解水制氢 活性氧 耦合反应 有机氧化 反应物富集

国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金中国科协青年人才托举工程项目

2022YFB4002700221080082209003121991102222881022021QNRC001

2024

石油炼制与化工
中国石油化工股份有限公司石油化工科学研究院

石油炼制与化工

CSTPCD北大核心
影响因子:0.825
ISSN:1005-2399
年,卷(期):2024.55(1)
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