Mo-Doped Ni/C Catalyst for Improved Simultaneous Production of Hydrogen and Carbon Nanotubes through Ethanol Decomposition
Jinxiang Diao,
Xiaojie Liu,
Xianmeng Wang,
Yuzhu Zhang,
Jingkai Yue,
Hui Wang
Affiliations
Jinxiang Diao
School of Aeronautical Maintenance Engineering, Aeronautical Polytechnic Institute, Xi’an 710089, China
Xiaojie Liu
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
Xianmeng Wang
School of Aeronautical Maintenance Engineering, Aeronautical Polytechnic Institute, Xi’an 710089, China
Yuzhu Zhang
School of Aeronautical Maintenance Engineering, Aeronautical Polytechnic Institute, Xi’an 710089, China
Jingkai Yue
School of Aeronautical Maintenance Engineering, Aeronautical Polytechnic Institute, Xi’an 710089, China
Hui Wang
Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
A Mo-Ni/C catalyst was developed and assessed in terms of the decomposition of ethanol to produce multi-wall carbon nanotubes (MWCNTs) and hydrogen. The catalyst utilized different molar ratios of Mo:Ni (1:9, 2:8, and 3:7), with Mo acting as a dopant to enhance the MWCNT yield and Ni acting as the primary active phase for MWCNT formation. Among the tested ratios, the 2:8 Mo:Ni ratio exhibited the optimal performance, yielding 86% hydrogen and high-quality MWCNTs. In addition to hydrogen, the process also generated CO, CH4, and CO2. Gas chromatography (GC) was employed to analyze the influence of the Mo:Ni ratio on gas production and selectivity, while the quality of the resulting MWCNTs was evaluated using SEM, Raman spectroscopy, and TEM analyses.
