Synthesis, Characterisation and Catalytic Activity of NiO supported Al2O3 for CO2 Hydrogenation to Carboxylic Acids: Influence of Catalyst Structure

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Hasan, S.Z.^1 ; Ahmad, K.N.^1 ; Isahak, W.N.R.W.^1^2 ; Pudukudy, M.^1 ; Masdar, M.S.^1^2 ; Jahim, J.M.^1^2

Research Centre for Sustainable Development Technology, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^1

Chemical Engineering Programme, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^2

关键词: Brunauer-emmett-teller surface areas;    Carbon dioxide concentrations;    Carbon dioxide hydrogenation;    Heterogeneous catalyst;    NiO/Al2O3;    Supported alumina catalyst;    Thermal conductivity detectors;    X ray photoelectron spectrometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012079/pdf
DOI  :  10.1088/1755-1315/268/1/012079

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Utilisation and conversion of carbon dioxide into valuable chemicals and fuels are the promising ways to reduce carbon dioxide concentration in the atmosphere. In addition, the conversion of carbon dioxide into fuels, such as methane, methanol and formic acid has been proven a good method for hydrogen storage. In this work, the catalyst structure plays an important role in the production of formic acid and acetic acid at low temperature. Nickel oxide supported alumina catalysts were synthesised by using the solid-state fusion method at 550 °C and 700 °C. Calcined catalysts were characterised by X-ray diffraction, Brunauer-Emmett-Teller surface area, high-resolution field emission scanning electron microscopy, Auger electron spectroscopy with X-ray photoelectron spectrometer and transmission electron microscopy. Carbon dioxide hydrogenation was performed in the batch reactor. The products obtained were analysed by using high-performance liquid chromatography and gas chromatography with a thermal conductivity detector. The highest levels of formic acid and acetic acid production were 4.08 and 1.58 mmol/L, respectively.