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Enhanced CO hydrogenation performance via two-dimensional NiAl-layered double oxide decorated by SiO2 nanoparticles
Affiliation:1. Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China;2. Bingtuan Industrial Technology Research Institute, Shihezi University, Shihezi, China;3. Carbon Neutralization and Environmental Catalytic Technology Laboratory, Shihezi University, Shihezi, China;1. Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, China;2. Department of New Energy and Materials, China University of Petroleum (Beijing), Beijing, 102249, China;3. CNOOC EnerTech-Drilling & Production Co. Shenzhen Branch, Shenzhen, 518055, China;4. Department of New Energy Vehicle Technology, Shenzhen Polytechnic, Shenzhen, 518055, China;1. Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China;2. Department of Life and Health Sciences, Huzhou College, 313000, Huzhou, China;3. School of Engineering, Huzhou University, 759 East Erhuan Road, Huzhou 313000, PR China;4. Zhejiang Huayuan Pigment Co., Ltd, Deqing 310024, Zhejiang, PR China;1. College of Chemical and Biological Engineering, Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou 310027, China;2. Institute of Zhejiang University-Quzhou, Quzhou 324000, China;1. Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China;2. Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China;1. Instituto de Tecnologías Del Hidrógeno y Energías Sostenibles (UBA-CONICET), Facultad de Ingeniería Química-Universidad de Buenos Aires, Pabellón de Industrias, Intendente Güiraldes 1428, Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, Argentina;2. Departamento de Ingeniería Química, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga, E-29071, Spain;3. Departamento de Computación, Facultad de Ciencias Exactas y Naturales - Universidad de Buenos Aires, Pabellón 1, Intendente Güiraldes 1428, Ciudad Universitaria, Ciudad Autónoma de Buenos Aires, Argentina
Abstract:The CO methanation reaction has been widely used in the fields of synthetic natural gas and ammonia (NH3). This study improves the CO methanation performance using a two-dimensional NiAl-layered double oxide (2D NiAl-LDO) decorated by SiO2 nanoparticles and reduced under hydrogen atmosphere. The as-obtained H–NiAl-LDO/SiO2 exhibited a high specific surface area of 240.5 m2/g and high surface-adsorbed oxygen of 20.77%. Furthermore, it had an excellent CO conversion of 100% at 300 °C and 96.87% at 250 °C, which was much better than those of H–NiAl-LDO (84.03% at 300 °C and 0% at 250 °C). We believe that it provides an additional strategy to easily and effectively improve CO methanation performance and shows potential for the application of similar catalysts.
Keywords:CO methanation  Layered double oxide  Two-dimensional material  Synthetic natural gas
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