Heterogeneous catalysts for CO2 hydrogenation to formic acid/formate: from nanoscale to single atom,Energy & Environmental Science

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Heterogeneous catalysts for CO2 hydrogenation to formic acid/formate: from nanoscale to single atom
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-2-1 , DOI: 10.1039/d0ee03575k
Ruiyan Sun _{1,

2,

3,

4} , Yuhe Liao _{1,

2,

3,

4,

5} , Shao-Tao Bai _{1,

2,

3,

4} , Mingyuan Zheng _{6,

7,

8,

9,

10} , Cheng Zhou _{1,

2,

3,

4} , Tao Zhang _{6,

7,

8,

9,

10} , Bert F. Sels _{1,

2,

3,

4}

Affiliation

Propelled by the vision of carbon-neutral energy systems, heterogeneous hydrogenation of CO₂ to formic acid/formate, a liquid hydrogen carrier, has been intensively studied as a promising approach to realize renewable and decarbonized energy supply. In the present review, the state-of-the-art of heterogeneous catalysts for this process is comprehensively summarized. First, a brief description of the challenges associated with thermodynamics is provided. Major advancements on constructing efficient heterogeneous catalysts then constitute the main body of this review, mainly involving nanostructured and single atom catalysts based on noble metals. Special attention is paid to the relevant structure–activity correlations and mechanistic insights, which provide strong bases for rational catalyst design. Key factors related to catalytic activity are highlighted including metal dispersion, electron density, basic functionalities, and concerted catalysis of metal and basic sites. A summary and outlook is presented in the end. We believe that this review will inspire more novel research from the catalysis community to advance the design of innovative catalytic materials towards the ultimate sustainable energy sector with a closed carbon loop.

中文翻译：

用于二氧化碳加氢成甲酸/甲酸酯的多相催化剂：从纳米级到单原子

在碳中性能源系统的推动下，CO _2的异质加氢对甲酸/甲酸盐（液态氢载体）进行深入研究是实现可再生和脱碳能源供应的一种有前途的方法。在本综述中，对该方法的最新非均相催化剂进行了全面总结。首先，简要描述了与热力学有关的挑战。因此，构建高效多相催化剂的主要进展构成了本综述的主体，主要涉及基于贵金属的纳米结构和单原子催化剂。特别注意相关的结构-活性相关性和机理见解，它们为合理的催化剂设计提供了坚实的基础。强调了与催化活性有关的关键因素，包括金属分散度，电子密度，基本功能，以及金属和碱性部位的协同催化作用。最后总结和展望。我们相信，这次审查将激发催化界的更多新颖研究，以将创新催化材料的设计朝着具有封闭碳环的最终可持续能源领域发展。

更新日期：2021-02-17

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