Qingqing Pang, Xizheng Fan, Kaihang Sun, Kun Xiang, Baojun Li, Shufang Zhao, Young Dok Kim, Qiaoyun Liu, Zhongyi Liu, Zhikun Peng
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引用次数: 0
摘要
在温和条件下,电催化将二氧化碳还原成高能量密度燃料和高附加值化学品,可以促进碳的可持续循环,减少当前的能源和环境问题。构建高活性、高选择性、高稳定性和低成本的电催化剂是实现电催化二氧化碳还原(ECR)工业应用的关键。金属-氮-碳(M-N-C),尤其是 Ni-N-C 具有近 100% 的 CO 选择性、高电流密度、优异的耐受性等优异性能,具有广阔的应用前景。基于目前的研究现状,从 ECR 的机理和 Ni 活性物种的存在形式入手,系统地总结了 Ni-N-C 电催化剂在 CO2 电还原中的最新研究进展。重点解读了 Ni-N-C 活性优化的调控策略,包括 N 配位调控、空位缺陷构建、形貌设计、表面改性、杂原子活化和双金属合作。最后,还讨论了设计用于 ECR 的 Ni-N-C 催化剂的一些亟待解决的问题和未来展望。本综述旨在为设计和开发具有实际应用价值的 Ni-N-C 催化剂提供指导。
Nickel–Nitrogen–Carbon (Ni–N–C) Electrocatalysts Toward CO2 electroreduction to CO: Advances, Optimizations, Challenges, and Prospects
Electrocatalytic reduction of CO2 into high energy-density fuels and value-added chemicals under mild conditions can promote the sustainable cycle of carbon and decrease current energy and environmental problems. Constructing electrocatalyst with high activity, selectivity, stability, and low cost is really matter to realize industrial application of electrocatalytic CO2 reduction (ECR). Metal–nitrogen–carbon (M–N–C), especially Ni–N–C, display excellent performance, such as nearly 100% CO selectivity, high current density, outstanding tolerance, etc., which is considered to possess broad application prospects. Based on the current research status, starting from the mechanism of ECR and the existence form of Ni active species, the latest research progress of Ni–N–C electrocatalysts in CO2 electroreduction is systematically summarized. An overview is emphatically interpreted on the regulatory strategies for activity optimization over Ni–N–C, including N coordination modulation, vacancy defects construction, morphology design, surface modification, heteroatom activation, and bimetallic cooperation. Finally, some urgent problems and future prospects on designing Ni–N–C catalysts for ECR are discussed. This review aims to provide the guidance for the design and development of Ni–N–C catalysts with practical application.
期刊介绍:
Energy & Environmental Materials (EEM) is an international journal published by Zhengzhou University in collaboration with John Wiley & Sons, Inc. The journal aims to publish high quality research related to materials for energy harvesting, conversion, storage, and transport, as well as for creating a cleaner environment. EEM welcomes research work of significant general interest that has a high impact on society-relevant technological advances. The scope of the journal is intentionally broad, recognizing the complexity of issues and challenges related to energy and environmental materials. Therefore, interdisciplinary work across basic science and engineering disciplines is particularly encouraged. The areas covered by the journal include, but are not limited to, materials and composites for photovoltaics and photoelectrochemistry, bioprocessing, batteries, fuel cells, supercapacitors, clean air, and devices with multifunctionality. The readership of the journal includes chemical, physical, biological, materials, and environmental scientists and engineers from academia, industry, and policy-making.