Gao Linjie, Wang Haixiao, Wang Yachuan, Liu Bang, Zhang Weifeng, Li Yaguang
Research Center for Solar Driven Carbon Neutrality, Engineering Research Center of Zero-carbon Energy Buildings and Measurement Techniques, Ministry of Education, The College of Physics Science and Technology, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, People's Republic of China.
Intelligent Sensor Network Engineering Research Center of Hebei Province, Faculty of Information Engineering, Hebei GEO University, Shijiazhuang, 050031, People's Republic of China.
Nanotechnology. 2023 Nov 16;35(5). doi: 10.1088/1361-6528/ad06cf.
Reverse water gas shift (RWGS) reaction is an intriguing strategy to realize carbon neutrality, however, the endothermic process usually needs high temperature that supplied by non-renewable fossil fuels, resulting in secondary energy and environmental issues. Photothermal catalysis are ideal substitutes for the conventional thermal catalysis, providing that high reaction efficiency is achievable. Two-dimensional (2D) materials are highly active as RWGS catalysts, however, their industrial application is restricted by the preparation cost. In this study, a series of 2D Co-based catalysts for photothermal RWGS reaction with tunable selectivity were prepared by self-assembly method based on cheap amylum, by integrating the 2D catalysts with our homemade photothermal device, sunlight driven efficient RWGS reaction was realized. The prepared 2D CoCeOexhibited a full selectivity toward CO (100%) and could be heated to 318 °C under 1 kW mirradiation with the CO generation rate of 14.48 mmol gh, pointing out a cheap and universal method to prepare 2D materials, and zero consumption CO generation from photothermal RWGS reaction.
逆水煤气变换（RWGS）反应是实现碳中和的一种引人关注的策略，然而，吸热过程通常需要由不可再生化石燃料提供的高温，这会导致二次能源和环境问题。光热催化是传统热催化的理想替代品，前提是能够实现高反应效率。二维（2D）材料作为RWGS催化剂具有高活性，然而，其工业应用受到制备成本的限制。在本研究中，基于廉价淀粉通过自组装方法制备了一系列用于光热RWGS反应且选择性可调的二维钴基催化剂，通过将二维催化剂与我们自制的光热装置相结合，实现了阳光驱动的高效RWGS反应。所制备的二维CoCeO对CO具有100%的全选择性，在1 kW光照下可加热至318 °C，CO生成速率为14.48 mmol g h，指出了一种制备二维材料的廉价通用方法，以及光热RWGS反应零消耗CO生成。
