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Title: A Ce-CuZn catalyst with abundant Cu/Zn-OV-Ce active sites for CO2 hydrogenation to methanol

Journal Article · · Nature Communications
ORCiD logo [1];  [2];  [3];  [4];  [4]; ORCiD logo [5];  [4];  [6];  [2]; ORCiD logo [2]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [9]
  1. Nanchang University (China). Institute of Applied Chemistry; SLAC
  2. Taiyuan University of Technology (China)
  3. Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Institute of Applied Physics; University of Chinese Academy of Sciences, Beijing (China)
  4. Chinese Academy of Sciences (CAS), Dalian (China). Dalian Institute of Chemical Physics
  5. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis
  6. Inner Mongolia University, Hohhot (China)
  7. Univ. of Surrey, Guildford (United Kingdom). DICP-Surrey Joint Centre for Future Materials
  8. Univ. of Science and Technology of China, Hefei (China). National Synchrotron Radiation Laboratory (NSRL)
  9. Chinese Academy of Sciences (CAS), Dalian (China). Dalian Institute of Chemical Physics; Inner Mongolia University, Hohhot (China); Univ. of Surrey, Guildford (United Kingdom). DICP-Surrey Joint Centre for Future Materials

CO2 hydrogenation to chemicals and fuels is a significant approach for achieving carbon neutrality. It is essential to rationally design the chemical structure and catalytic active sites towards the development of efficient catalysts. Here we show a Ce-CuZn catalyst with enriched Cu/Zn-OV-Ce active sites fabricated through the atomic-level substitution of Cu and Zn into Ce-MOF precursor. The Ce-CuZn catalyst exhibits a high methanol selectivity of 71.1% and a space-time yield of methanol up to 400.3 g·kgcat-1·h-1 with excellent stability for 170 h at 260°C, comparable to that of the state-of-the-art CuZnAl catalysts. Controlled experiments and DFT calculations confirm that the incorporation of Cu and Zn into CeO2 with abundant oxygen vacancies can facilitate H2 dissociation energetically and thus improve CO2 hydrogenation over the Ce-CuZn catalyst via formate intermediates. This work offers an atomic-level design strategy for constructing efficient multi-metal catalysts for methanol synthesis through precise control of active sites.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
National Key R&D Program of China; National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
2405194
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 15; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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