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Title: Self‐Regenerative Ni‐Doped CaTiO 3 /CaO for Integrated CO 2 Capture and Dry Reforming of Methane
Abstract In this work, a new type of multifunctional materials (MFMs) called self‐regenerative Ni‐doped CaTiO3/CaO is introduced for the integrated CO2capture and dry reforming of methane (ICCDRM). These materials consist of a catalytically active Ni‐doped CaTiO3and a CO2sorbent, CaO. The article proposes a concept where the Ni catalyst can be regenerated in situ, which is crucial for ICCDRM. Exsolved Ni nanoparticles are evenly distributed on the surface of CaTiO3under H2or CH4, and are re‐dispersed back into the CaTiO3lattice under CO2. The Ni‐doped CaTiO3/CaO MFMs show stable CO2capture capacity and syngas productivity for 30 cycles of ICCDRM. The presence of CaTiO3between CaO grains prevents CaO/CaCO3thermal sintering during carbonation and decarbonation. Moreover, the strong interaction of CaTiO3with exsolved Ni mitigates severe accumulation of coke deposition. This concept can be useful for developing MFMs with improved properties that can advance integrated carbon capture and conversion.  more » « less
Award ID(s):
2432002
PAR ID:
10570304
Author(s) / Creator(s):
;
Publisher / Repository:
Wiley-VCH
Date Published:
Journal Name:
Small
ISSN:
1613-6810
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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