Ultra-small Mo-Pt subnanoparticles enable CO2 hydrogenation at room temperature and atmospheric pressure

Augie Atqa; Masataka Yoshida; Masanori Wakizaka; Wang-Jae Chun; Akira Oda; Takane Imaoka; Kimihisa Yamamoto

doi:10.1039/d3cc02703a

Ultra-small Mo-Pt subnanoparticles enable CO₂ hydrogenation at room temperature and atmospheric pressure

Chem Commun (Camb). 2023 Oct 5;59(80):11947-11950. doi: 10.1039/d3cc02703a.

Authors

Augie Atqa¹, Masataka Yoshida¹, Masanori Wakizaka², Wang-Jae Chun³, Akira Oda⁴, Takane Imaoka^{1

5}, Kimihisa Yamamoto^{1

5}

Affiliations

¹ Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan. yamamoto@res.titech.ac.jp.
² Graduate School of Photonics Science, Chitose Institute of Science and Technology, Chitose 066-0012, Japan.
³ Graduate School of Arts and Sciences, International Christian University, Tokyo 181-8585, Japan.
⁴ Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.
⁵ JST ERATO Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan.

PMID: 37668093
DOI: 10.1039/d3cc02703a

Abstract

We present a partially-oxidised bimetallic Mo-Pt subnanoparticle (Mo₄Pt₈O_x) enabling thermally-driven CO₂ hydrogenation to CO at room temperature and atmospheric pressure. A mechanistic study explained the full catalytic cycle of the reaction from CO₂ activation to catalyst reactivation. DFT calculations revealed that alloying with Mo lowers the activation barrier by weakening the CO adsorption. This finding could be a first step for low-energy CO₂ conversion.