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Research Article

Air to fuel: Direct capture of CO2 from air and in-situ solar-driven conversion into syngas via Nix/NaA nanomaterials

Cheng Tian1Xianglei Liu1,2( )Chenxi Liu1Shaoyang Li1Qiyan Li1Nan Sun1Ke Gao1Zhixing Jiang1Kun Chang3Yimin Xuan1,2
School of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Key Laboratory of Thermal Management and Energy Utilization of Aviation Vehicles, Ministry of Industry and Information Technology, Nanjing 210016, China
School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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Graphical Abstract

Inspired by the nature’ carbon cycle, we have investigated a dual functional catalytic-sorbent consisting of commercial zeolite NaA and base metal Ni, which can capture CO2 directly from air at ambient temperature and convert greenhouse gases CO2 and CH4 into valuable syngas by collecting and utilizing clean solar.


Ever-increasing CO2 emissions and atmospheric concentration mainly due to the burning of traditional fossil fuels have caused severe global warming and climate change problems. Inspired by nature’s carbon cycle, we propose a novel dual functional catalyst-sorbent to tackle energy and environmental problems simultaneously via direct capture of CO2 from air and in-situ solar-driven conversion into clean fuels. Economically and operationally advantageous, the planned coupling reaction can be carried out in a single reactor without the requirement for an extra trapping device. The great CO2 capture and conversion performance in an integrated step is shown by the CO2 capacity of up to 0.38 mmol·g−1 for adsorption from 500 ppm CO2 at 25 °C and the CO2 conversion rate of up to 95%. Importantly, the catalyst-sorbent is constituted of a nonprecious metal Ni catalyst and an inexpensive commercially available CO2 sorbent, viz, zeolite NaA. Furthermore, this designed dual functional material also exhibits outstanding stability performance. This work offers a novel pathway of capturing CO2 in the air at room temperature and converting it by CH4 into fuel, contributing to the new era of carbon neutrality.

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Nano Research
Pages 10899-10912
Cite this article:
Tian C, Liu X, Liu C, et al. Air to fuel: Direct capture of CO2 from air and in-situ solar-driven conversion into syngas via Nix/NaA nanomaterials. Nano Research, 2023, 16(8): 10899-10912.






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Received: 24 February 2023
Revised: 15 April 2023
Accepted: 26 April 2023
Published: 15 June 2023
© Tsinghua University Press 2023