Journal article
Catalytic Performance of Ni Catalysts Supported on α-, β-, and γ-Ga2O3 Polymorphs for CO2 Hydrogenation to Methanol
Y Pei, TZH Gani, Z Chen, X Su, Y Wang, Z Zhang, KH Lim, S Kawi
Industrial and Engineering Chemistry Research | AMER CHEMICAL SOC | Published : 2024
Abstract
Nickel-based materials have garnered considerable attention owing to their potential as affordable, effective, and durable catalysts for CO2 hydrogenation. However, their propensity to favor methane production over more desirable methanol has posed a challenge. In this study, we endeavored to address this issue by synthesizing α-, β-, and γ-Ga2O3 supported Ni catalysts through the wet impregnation method. Notably, Ni supported on the α-Ga2O3 catalyst (referred to as 10Ni/α-Ga2O3) exhibited superior activity and methanol selectivity under typical CO2 hydrogenation conditions (3 MPa and 260 °C), reaching ca. 80% methanol selectivity at 0.72% CO2 conversion. This performance outpaced analogous ..
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Awarded by National Research Foundation Singapore
Funding Acknowledgements
This research is supported by the National Research Foundation, Singapore, and A*STAR under its Low-Carbon Energy Research (LCER) Funding Initiative (FI) Project (U2102d2011, WBS: A-8000278-00-00), and the Singapore Ministry of Education Academic Research Fund Tier 1 Project (WBS: A-0009184-00-00). Y.P. acknowledges funding from the China Scholarship Council supporting his stay at the National University of Singapore. Y.W. acknowledges the International Hydrogen Research Fellowship Program support from CSIRO, the Department of Climate Change, Energy, the Environment and Water (DCCEEW) Australian Government, and the Australian Hydrogen Research Network (AHRN).