Rh promoted In2O3 as a highly active catalyst for CO2 hydrogenation to methanol

Dostagir, Nazmul Hasan M. D.; Thompson, Coogan; Kobayashi, Hirokazu; Karim, Ayman M.; Fukuoka, Atsushi; Shrotri, Abhijit

Rh promoted In2O3 as a highly active catalyst for CO2 hydrogenation to methanol

Dostagir, Nazmul Hasan M. D.; Thompson, Coogan; Kobayashi, Hirokazu et al.

Catalysis science and technology, 2020, 10(24), 8196-8202

Permalink : https://hdl.handle.net/2115/83636

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/83636
タイトル	Rh promoted In2O3 as a highly active catalyst for CO2 hydrogenation to methanol
著者	Dostagir, Nazmul Hasan M. D. ; Thompson, Coogan ; Kobayashi, Hirokazu ; Karim, Ayman M. ; Fukuoka, Atsushi ; Shrotri, Abhijit
著者名 Dostagir, Nazmul Hasan M. D.
著者名 Thompson, Coogan
e-Rad_Researcher 30545968 著者名 Kobayashi, Hirokazu
著者名 Karim, Ayman M.
e-Rad_Researcher 80189927 著者名 Fukuoka, Atsushi
著者名 Shrotri, Abhijit
言語	英語
発行日	2020-12-21
出版者	Royal Society of Chemistry
収録物名	Catalysis science and technology
巻(号)	10(24)
ページ	8196-8202
抄録	Synthesis of methanol with high selectivity and productivity through hydrogenation of CO2 is highly attractive. This work uses a Rh doped In2O3 catalyst to achieve a high methanol productivity of 1.0 g(MeOH) h(-1) g(cat)(-1) while maintaining the intrinsic high selectivity of pure In2O3. Rh facilitated the dissociation of H-2 leading to creation of oxygen vacancies over the In2O3 surface. In addition, Rh atoms also participated in the activation of CO2 to produce formate species with a low activation barrier as evidenced by DFT calculation. Rh species were atomically dispersed in the In2O3 matrix and were stable during a long term reaction. Under reaction conditions, the surface Rh atoms were reduced and were stabilized by charge transfer from neighbouring In atoms. Our results show that incorporation of atomic Rh species in In2O3 can lead to high methanol productivity by creation of oxygen vacancies as well as Rh centred active sites for CO2 activation.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	2044-4753
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1039/d0cy01789b