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Ruthenium Catalysts Templated on Mesoporous MCM-41 Type Silica and Natural Clay Nanotubes for Hydrogenation of Benzene to Cyclohexane. Catalysts 2020. [DOI: 10.3390/catal10050537] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Mesoporous ruthenium catalysts (0.74–3.06 wt%) based on ordered Mobil Composition of Matter No. 41 (MCM-41) silica arrays on aluminosilicate halloysite nanotubes (HNTs), as well as HNT-based counterparts, were synthesized and tested in benzene hydrogenation. The structure of HNT core-shell silica composite-supported Ru catalysts were investigated by transmission electron microscopy (TEM), X-ray fluorescence (XRF) and temperature-programmed reduction (TPR-H2). The textural characteristics were specified by low-temperature nitrogen adsorption/desorption. The catalytic evaluation of Ru nanoparticles supported on both the pristine HNTs and MCM-41/HNT composite in benzene hydrogenation was carried out in a Parr multiple reactor system with batch stirred reactors (autoclaves) at 80 °C, a hydrogen pressure of 3.0 MPa and a hydrogen/benzene molar ratio of 3.3. Due to its hierarchical structure and high specific surface area, the MCM-41/HNT composite provided the uniform distribution and stabilization of Ru nanoparticles (NPs) resulted in the higher specific activity and stability as compared with the HNT-based counterpart. The highest specific activity (5594 h−1) along with deep benzene hydrogenation to cyclohexane was achieved for the Ru/MCM-41/HNT catalyst with a low metal content.
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Liao H, Xiao Y, Yu X, Liu X, Zhong H, Liang M, He H. Benzene hydrogenation over polydopamine-modified MCM-41 supported Ruthenium-Lanthanum catalyst. INORG NANO-MET CHEM 2019. [DOI: 10.1080/24701556.2019.1567539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Hongguang Liao
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
| | - Yanjuan Xiao
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
| | - Xiaoguang Yu
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
| | - Xuanyan Liu
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
| | - Hongmei Zhong
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
| | - Meidong Liang
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
| | - Haoyan He
- College of Chemical Engineering, Hunan Chemical Vocational Technology College, Zhuzhou, China
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