Ni-Doped In<sub>2</sub>O<sub>3</sub> Photothermal Coupling Catalyzed Boosted Carbon Dioxide Hydrogenation to Methanol
Guolin Zhang, Qi Xu, Hui Huang, Fei Zhou, Liangyun Yu, Qi Chen, Jiarong Yang, Yanli Xiao, Qi Zhang
Abstract
The extensive use of fossil fuels has resulted in large amounts of carbon dioxide being emitted into the air and has led to a number of environmental problems. Given the abundance of both carbon dioxide and sunlight in the earth’s atmosphere, converting solar energy into chemical energy by photothermally catalyzing carbon dioxide hydrogenation to produce methanol is a potential strategy. By using the coprecipitation approach, a Ni-doped In 2 O 3 catalyst was created, and its compositional valence, morphology, specific surface area, band gap, and other properties were assessed by XRD, XPS, TEM, BET, H 2 -TPR, CO 2 -TPD, and UV–vis characterization. Methanol production from carbon dioxide hydrogenation is stable and effective under lower pressure (1 MPa) photothermal settings, with an efficiency of 63.4 g MeOH h –1 kg cat –1, which is approximately 120% higher than that of pure In 2 O 3 under the same circumstances.