Single atoms of indium on hafnia enable superior CO2-based methanol synthesis
Open Access
- 2 March 2026
- journal article
- Published by Springer Nature in Nature Nanotechnology
- Vol. 21 (4) , 588-597
Abstract
Indium–zirconium oxides rank among the most selective and stable catalysts for CO 2 hydrogenation to methanol. Yet, despite extensive research, the mechanistic origin of the exceptional role of monoclinic zirconia remains unresolved and continues to set the benchmark in the field. Here we show that monoclinic hafnia, a wide-bandgap oxide rarely explored in catalysis, can outperform this benchmark. Nanostructured indium–hafnium oxides synthesized via flame spray pyrolysis achieve up to 70% higher indium-specific methanol productivity than indium–zirconium oxides, with the largest gains observed for single atoms of indium. Experimental and theoretical analyses reveal that a combination of stable monoclinic support surfaces, flexible chemical potential of indium single atoms and the presence of a cooperative hydride–proton reservoir collectively enhance CO 2 activation and intermediate hydrogenation. Crucially, the precise control of surface hydroxylation is required. These findings establish a new benchmark for green methanol synthesis and provide generalizable design principles for next-generation oxide supports in single-atom catalysis.Keywords
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Funding Information
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (200021_196381)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (200021_196381)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (225147)
- Departament d'Innovació, Universitats i Empresa, Generalitat de Catalunya (2023 CLIMA 00105)
- Departament d'Innovació, Universitats i Empresa, Generalitat de Catalunya (PID2024-157556OB-I00)
- Departament d'Innovació, Universitats i Empresa, Generalitat de Catalunya (2023 CLIMA 00105)
This publication has 74 references indexed in Scilit:
- Atomic-scale engineering of indium oxide promotion by palladium for methanol production via CO2 hydrogenationNature Communications, 2019
- Optical properties of oxygen vacancies in HfO2 thin films studied by absorption and luminescence spectroscopyOptics Express, 2018
- A highly selective and stable ZnO-ZrO2solid solution catalyst for CO2hydrogenation to methanolScience Advances, 2017
- Level Alignment as Descriptor for Semiconductor/Catalyst Systems in Water Splitting: The Case of Hematite/Cobalt Hexacyanoferrate PhotoanodesChemSusChem, 2017
- The broadening reach of frustrated Lewis pair chemistryScience, 2016
- Managing the Computational Chemistry Big Data Problem: The ioChem-BD PlatformJournal of Chemical Information and Modeling, 2014
- A comprehensive DFT investigation of bulk and low-index surfaces of ZrO2polymorphsJournal of Computational Chemistry, 2014
- Modeling of the Adsorption and Desorption of CO2 on Cu/ZrO2 and ZrO2 CatalystsLangmuir, 2007
- EasySpin, a comprehensive software package for spectral simulation and analysis in EPRJournal of Magnetic Resonance, 2006
- Generalized Gradient Approximation Made SimplePhysical Review Letters, 1996