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Zhai Z, Chu J, Sun L, Zhao X, Huang D, Yang X, Zhuang C, Min C, Wang Y. Ultrahigh Metal Content Carbon-Based Catalyst for Efficient Hydrogenation of Furfural: The Regulatory Effect of Glycerol. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44439-44449. [PMID: 36129173 DOI: 10.1021/acsami.2c12874] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of high-content non-noble metal nanocatalysts is important for multiphase catalysis applications. However, it is a challenge to solve the agglomeration in the preparation of high-content metal catalysts. In this paper, a carbon-based catalyst (Co@CN-G-600) with 71.28 wt % cobalt metal content was prepared using a new strategy of gas-phase carbon coating assisted by glycerol. The core of this strategy is to maintain the spacing of metallic cobalt by continuous replenishment of dissociated ligands during pyrolysis over gas-phase glycerol. This approach is also applicable to other non-noble metals. When Co@CN-G-600 was further used as a catalyst for the selective hydrogenation of furfural (FF) to prepare furfuryl alcohol (FOL), the yield of FOL was >99.9% under mild conditions of 80 °C, compared to only 8.23% catalytic yield at up to 130 °C for Co@CN-600 without glycerol. The excellent catalytic performance mainly lies in the fact that the introduction of glycerol modulates the size effect, electronic effect, and acidic site intensity of the high-content Co catalyst, which promotes the activation of FF and hydrogen. Meanwhile, the optimized specific surface area and pore structure by glycerol improve the accessibility of high-density active sites and promote more efficient mass transfer. In addition, the introduction of glycerol produced a graphitic carbon layer encapsulation structure relative to Co@CN-600, which substantially improved the cycling stability of the catalyst. This study resolves the paradox of high content and high dispersion of non-noble metal catalysts in the synthesis process and provides a general pathway and example for the preparation of stable high-content metal catalysts.
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Affiliation(s)
- Zhouxiao Zhai
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Jie Chu
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Lu Sun
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Xu Zhao
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Dejin Huang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Xiaoqin Yang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Changfu Zhuang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
| | - Chungang Min
- Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Ying Wang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650051, P. R. China
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Sharma TSK, Hwa KY. Facile Synthesis of Ag/AgVO 3/N-rGO Hybrid Nanocomposites for Electrochemical Detection of Levofloxacin for Complex Biological Samples Using Screen-Printed Carbon Paste Electrodes. Inorg Chem 2021; 60:6585-6599. [PMID: 33878862 DOI: 10.1021/acs.inorgchem.1c00389] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Silver vanadate nanorods (β-AgVO3) with silver nanoparticles (Ag-NPs) decorated on the surface of the rods were synthesized by using simple hydrothermal technique and later anchored onto nitrogen-doped reduced graphene oxide (N-rGO) to make a novel nanocomposite. Experimental analyses were carried out to identify the electronic configuration by X-ray diffraction analysis, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy analysis, which revealed monoclinic patterns of the C12/m1 space group with Wulff construction forming beta silver vanadate (β-AgVO3) crystals with optical density and phase transformations. Ag nucleation showed consistent results with metallic formation and electronic changes occurring in [AgO5] and [AgO3] clusters. Transmission electron microscopy and field-emission scanning electron microscopy with elemental mapping and EDX analysis of the morphology reveals the nanorod structure for β-AgVO3 with AgNPs on the surface and sheets for N-rGO. Additionally, a novel electrochemical sensor is constructed by using Ag/AgVO3/N-rGO on screen-printed carbon paste electrodes for the detection of antiviral drug levofloxacin (LEV) which is used as a primary antibiotic in controlling COVID-19. Using differential pulse voltammetry, LEV is determined with a low detection limit of 0.00792 nm for a linear range of 0.09-671 μM with an ultrahigh sensitivity of 152.19 μA μM-1 cm-2. Furthermore, modified electrode performance is tested by real-time monitoring using biological and river samples.
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Affiliation(s)
- Tata Sanjay Kanna Sharma
- Graduate Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 106, Taiwan.,Department of Molecular Science and Engineering, National Taipei University of Technology, Taipei 106, Taiwan.,Center for Biomedical Industry, National Taipei University of Technology, Taipei 106, Taiwan
| | - Kuo-Yuan Hwa
- Graduate Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei 106, Taiwan.,Department of Molecular Science and Engineering, National Taipei University of Technology, Taipei 106, Taiwan.,Center for Biomedical Industry, National Taipei University of Technology, Taipei 106, Taiwan
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Li S, Fan Y, Wu C, Zhuang C, Wang Y, Li X, Zhao J, Zheng Z. Selective Hydrogenation of Furfural over the Co-Based Catalyst: A Subtle Synergy with Ni and Zn Dopants. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8507-8517. [PMID: 33570382 DOI: 10.1021/acsami.1c01436] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A multimetal doping strategy has aroused extensive attention in promoting a non-noble catalyst for selective hydrogenation reaction. Herein, a multimetallic catalyst (NiCoZn@CN) with excellent catalytic performance for hydrogenation of furfural (FAL) to furfuryl alcohol (FOL) is prepared through a facile, inexpensive, and efficient pyrolysis method. Using H2 as a H donor, extremely high selectivity (>99%) with 100% conversion is attained over the optimal NiCoZn@CN-600 catalyst. The subtle synergy between Co and Ni, Zn dopants, which remarkably promotes the performance of the Co-based catalyst, is revealed. In the NiCoZn@CN system, Co0 is proven to be the main active site, whose content is greatly improved by Ni and Co dopants. Additionally, the Ni dopant could also benefit activation of H2 and the Zn dopant could enhance metal nanoparticle dispersion and the porous structure of the catalyst. In situ FTIR indicates that the vertical adsorption mode of FAL with the Oaldehyde terminal on NiCoZn@CN-600 ensures a selective hydrogenation process. With a N-doped carbon matrix, NiCoZn@CN-600 shows good cycling stability in five times run. NiCoZn@CN-600 is also competent in the catalytic transfer hydrogenation (CTH) of FOL, affording >99% yield with 2-propanol as a H donor. This study opens an avenue toward rational design of multimetallic doping catalysts with high selectivity for challenging reactions in the conversion of biomass-derived compounds.
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Affiliation(s)
- Shangjing Li
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650224, P. R. China
| | - Yafei Fan
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650224, P. R. China
| | - Chunhua Wu
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650224, P. R. China
| | - Changfu Zhuang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650224, P. R. China
| | - Ying Wang
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650224, P. R. China
| | - Xuemei Li
- Key Laboratory of Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, School of Chemical Engineering, Southwest Forestry University, Kunming 650224, P. R. China
| | - Jie Zhao
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, P. R. China
| | - Zhifeng Zheng
- College of Energy, Xiamen University, Xiamen, Fujian 361005, P. R. China
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