Abstract
AbstractThe integrated CO2 capture and conversion (iCCC) technology has been booming as a promising cost-effective approach for Carbon Neutrality. However, the lack of the long-sought molecular consensus about the synergistic effect between the adsorption and in-situ catalytic reaction hinders its development. Herein, we illustrate the synergistic promotions between CO2 capture and in-situ conversion through constructing the consecutive high-temperature Calcium-looping and dry reforming of methane processes. With systematic experimental measurements and density functional theory calculations, we reveal that the pathways of the reduction of carbonate and the dehydrogenation of CH4 can be interactively facilitated by the participation of the intermediates produced in each process on the supported Ni–CaO composite catalyst. Specifically, the adsorptive/catalytic interface, which is controlled by balancing the loading density and size of Ni nanoparticles on porous CaO, plays an essential role in the ultra-high CO2 and CH4 conversions of 96.5% and 96.0% at 650 °C, respectively.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry,Multidisciplinary
Reference67 articles.
1. Allen, M. et al. Technical summary: global warming of 1.5 °C. An IPCC Special Report on the impacts of global warming of 1.5 °C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty. Intergovernmental Panel on Climate Change (2019).
2. Gao, W. et al. Industrial carbon dioxide capture and utilization: state of the art and future challenges. Chem. Soc. Rev. 49, 8584–8686 (2020).
3. Sullivan, I. et al. Coupling electrochemical CO2 conversion with CO2 capture. Nat. Catal. 4, 952–958 (2021).
4. Cheng, D. et al. Catalytic synthesis of formamides by integrating CO2 capture and morpholine formylation on supported Iridium catalyst. Angew. Chem. Int. Ed. 61, e202202654 (2022).
5. Sen, R., Goeppert, A., Kar, S. & Prakash, G. K. S. Hydroxide based integrated CO2 capture from air and conversion to methanol. J. Am. Chem. Soc. 142, 4544–4549 (2020).
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