Article
Chemistry, Applied
Zhiyan He, Xiaomei Ning, Guangxing Yang, Hongjuan Wang, Yonghai Cao, Feng Peng, Hao Yu
Summary: This article provides a comprehensive review of recent developments on glycerol selective oxidation over supported noble metal catalysts, with critical attention paid to the influence of metal-support and metal-metal interactions on the catalyst structure and performance, aiming for a better understanding of the reaction mechanism and rational catalyst design.
Article
Engineering, Chemical
Yibin Liu, Minghao Zha, Hansong Qin, Shuang Yao, Xin Zhou, Siming Zhao, Nan Sheng, Yinghao Sun, Xin Jin, Hao Yan, Xiang Feng, Xiaobo Chen, Chaohe Yang
Summary: The study revealed that Au and Pt mainly exist in the form of alloy in the catalyst, with Au playing the role of reducing the size of AuPt alloy nanoparticles to enhance the adsorption and activation of intermediate products. After optimizing various factors, the Au1Pt2/MgO/SBA-15 (0.05) catalyst showed excellent catalytic activity and selectivity for the oxidation of glycerol. The synergistic effect between Pt and Au active sites was confirmed to facilitate the activation of C-H bond and oxidation of aldehyde group during the oxidation of glycerol.
Article
Chemistry, Physical
Christopher D. Evans, Jonathan K. Bartley, Stuart H. Taylor, Graham J. Hutchings, Simon A. Kondrat
Summary: Exceptional selectivity of LaMnO3 supported Au catalysts for the oxidation of glycerol to tartronic acid is reported. The choice of metal nanoparticle influences the selectivity of the catalysts.
Article
Engineering, Environmental
Pan Luo, Jianyue Wang, Wenjuan Rui, Ruilin Xu, Zhiyuan Kuai, Dan Yang, Xiaoyue Wan, Chunmei Zhou, Yanhui Yang, Yihu Dai
Summary: This study reveals the positive role of ball-milling-induced phase transition from t-ZrO2 to m-ZrO2 in activating the secondary hydroxyl of glycerol over PtBi/ZrO2 catalysts. The mZrO2-BM support enhances the dispersion of PtBi sites and surface basicity, improving the activity, DHA selectivity, and recycling stability of the catalyst. Catalytic evaluation and in-situ FT-IR spectra analysis suggest that the catalyst prefers dissociative activation of the secondary hydroxyl of glycerol.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xia Zhang, Zhengkai Cao
Summary: Sub-nanosized PtAu particles within three-dimensional carbon materials were prepared using a mercaptosilane-assisted method. This strategy allows for effective size control of PtAu particles without the need for an additional carbon precursor. The as-synthesized three-dimensional carbon exhibited superior properties compared to other carbon materials. PtAu particles on three-dimensional carbon showed higher activity for methanol oxidation and hydrogen evolution reactions compared to Pt/3D carbon and a commercial Pt/C catalyst.
Article
Chemistry, Physical
Hao Yan, Qi Shen, Yinghao Sun, Siming Zhao, Ruilong Lu, Mengcong Gong, Yibin Liu, Xin Zhou, Xin Jin, Xiang Feng, Xiaobo Chen, De Chen, Chaohe Yang
Summary: The study showed that the different morphologies of Mn2O3 catalysts have a significant impact on their catalytic performance, with surface oxygen vacancies on the (001) facets closely related to catalytic activity, and the (111) facets helping to prevent over-oxidation of products, thereby improving glycolic acid selectivity. The Mn2O3-truncated octahedron catalyst with both (001) and (111) facets exhibited high catalytic activity and glycolic acid selectivity simultaneously.
Article
Chemistry, Physical
Difan Li, Xiuge Zhao, Qingqing Zhou, Bingjie Ding, Anna Zheng, Qingpo Peng, Zhenshan Hou
Summary: Selective oxidation of glycerol to glyceric acid can be efficiently achieved using a hydroxyapatite-supported palladium catalyst with molecular oxygen as the oxidant. Surface basicity and Pd sites on the catalyst play a crucial role in promoting glycerol oxidation, and the coordination interaction between the vicinal hydroxyl group of glycerol and Ca2+ sites on the catalyst enhances the oxidation reaction. This catalytic system can also be extended to other vicinal diols for selective oxidation.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Chemistry, Physical
Lihua Yang, Yuanyuan Jiang, Zihui Zhu, Zhaoyin Hou
Summary: In this study, Pt catalysts supported on different shaped WO3 (rod-like, lamellar and cuboid) were prepared and tested for the selective oxidation of glycerol in base-free aqueous solution. The Pt/R-WO3 catalyst with rod-like WO3 support showed higher surface area and activity, as well as enhanced selectivity towards glyceric acid.
MOLECULAR CATALYSIS
(2022)
Article
Materials Science, Ceramics
Yeon-Bin Choi, Naoyoshi Nunotani, Kunimitsu Morita, Nobuhito Imanaka
Summary: This study demonstrates the effective production of glyceric acid from glycerol under mild conditions using a Pt/CeO2-ZrO2-Fe2O3/SBA-16 catalyst in an open-air system without base or oxygen gas flow. The catalyst's oxygen release and storage abilities, as well as its acidity, play a crucial role in enhancing the glyceraldehyde yield. Increasing the loading amount of CeO2-ZrO2-Fe2O3 improves the oxygen release and storage abilities while reducing the catalyst acidity.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2022)
Article
Chemistry, Applied
R. J. Chimentao, P. Hirunsit, C. S. Torres, M. Borges Ordono, A. Urakawa, J. L. G. Fierro, D. Ruiz
Summary: The study found that Cu/ZrO2 catalyst exhibited the highest activity and apparent reaction rate in the dehydration of glycerol to hydroxyacetone process, attributed to the highly acidic support and positive roles of interfacial sites. The application of Weisz-Prater (WP) criterion confirmed the absence of intraparticle diffusion limitations, and DFT study suggested that the active sites are located at the interface of Cu particles and the acidic support.
Review
Chemistry, Physical
Hongling Yang, Ganggang Li, Guoxia Jiang, Zhongshen Zhang, Zhengping Hao
Summary: Selective catalytic oxidation is crucial in fine chemical and petrochemical industries, but it is challenging to achieve selective production of target products in the presence of multiple reaction paths. Single atom catalysts, different from nanoclusters and nanoparticles, offer opportunities for highly selective catalytic oxidation. This review summarizes recent advances in using novel catalytic materials for challenging selective oxidation reactions, including methane oxidation, alcohol oxidation, alkene epoxidation, and carbon monoxide oxidation. The key factors affecting catalytic performance, such as the electronic and geometric structures of single atoms, nanoclusters, and nanoparticles, are discussed. Understanding the active species, structures, activity-structure relationship, and mechanisms of these catalytic systems are highlighted, along with current challenges and future developments, aiming to guide the design of efficient and highly selective catalysts for heterogeneous oxidation reactions and to better understand their catalytic behaviors in a unified way.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Kefu Zhang, Yongqi Deng, Yihan Wu, Lele Wang, Lifeng Yan
Summary: In this study, a highly efficient catalyst FeNi2S4/NiS-NG was developed, which exhibited abundant active sites and excellent catalytic performance for methanol oxidation reaction. The catalyst showed superior catalytic activity and competitive electrocatalytic stability, offering promising insights into the rational modulation of precious-metal-free catalysts for fuel cell applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Energy & Fuels
M. Selim Cogenli, Ayse Bayrakceken Yurtcan
Summary: Supported catalysts are widely used in fuel cells, and platinum nanoparticles are preferred as they have superior properties. Carbon black has commonly been used as a support material, but it is easily affected by the operating conditions. Graphene aerogels (GA) have recently been discovered to be important graphene-based materials in nanotechnology and are being investigated as support materials. In this study, carbon black was used together with GA and heteroatom-doped GA to synthesize three different hybrid carbon-supported Pt nanoparticles. The Pt/BGA-C catalyst showed the highest catalytic activity for both formic acid and methanol oxidation.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Analytical
Masoumeh Madadi, Parisa Salarizadeh, Masoud Rohani Moghadam, Alireza Bazmandegan-Shamili
Summary: Recently, there has been significant attention on designing an active electrocatalyst with a unitary structure and high performance to improve energy and storage devices. In this study, flower-like CuCo2O4 nanorods were synthesized through hydrothermal and calcination methods and hybridized with graphene quantum dots (GQDs) prepared by pyrolysis. The electrocatalysts were analyzed using various characterization techniques, and their electrochemical performance was evaluated. The GQD/CuCo2O4 showed a higher electrochemical surface area and current density for methanol oxidation than CuCo2O4, which can be attributed to the strengthening of its structure and increased electrical conductivity and specific surface area.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Chengchun Zhao, Ya Xie, Da Shi, Han Yu
Summary: Selective oxidation of alkylarene is a straightforward and attractive method for synthesizing aromatic aldehydes, ketones, and aromatic acid derivatives. We synthesized a Cr(III) catalyst, (NH4)(3)[CrMo6O18(OH)(6)], which exhibits reasonable activity for the selective oxidation of alkylarenes under mild conditions. The catalyst, supported by a central chromium mononucleus and a cyclic inorganic ligand composed of six (MoO6)-O-VI octahedra, overcomes the disadvantages of expensive and non-recyclable organic ligands. It is efficient, environmentally friendly, and can be recycled at least six times with high activity. Moreover, a wide range of substituted alkylarenes are compatible, providing the corresponding carbonyl compounds in moderate-to-high yields.
Article
Chemistry, Physical
Jifan Li, Mengjie Li, Chenxi Zhang, Chun-Ling Liu, Rong-Zhen Yang, Wen-Sheng Dong
JOURNAL OF CATALYSIS
(2020)
Article
Biotechnology & Applied Microbiology
Yihu Ke, Xiaohua Li, Jifan Li, Chun-Ling Liu, Chunli Xu, Wen-Sheng Dong
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2020)
Article
Chemistry, Applied
Hui-Fang Ren, Xiao Luo, Ke Zhang, Qiang Cai, Chun-Ling Liu, Wen-Sheng Dong
JOURNAL OF POROUS MATERIALS
(2020)
Article
Chemistry, Physical
Yifeng Hou, Jifan Li, Ming Qing, Chun-Ling Liu, Wen-Sheng Dong
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Physical
Qifeng Lei, Jifan Li, Ningning Cao, Zhe Song, Chun-Ling Liu, Wen-Sheng Dong
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Applied
Ziyi Li, Haigang Hao, Jingjing Lu, Chengming Wu, Rui Gao, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: The study demonstrated that fabricating Cu/ZrO2-dp catalysts with plentiful Cu-ZrO2 interfaces by depositing amorphous ZrO2 onto Cu nanoparticles can significantly enhance catalytic performance for the hydrogenation of levulinic acid to gamma-valerolactone. The synergistic catalysis of Cu-ZrO2 interfaces provided an effective strategy for designing catalysts with satisfactory performance for various hydrodeoxygenation reactions, showcasing the importance of interfacial active centers and acid sites in enhancing catalytic activity.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Xiao-Yang Yue, Hui-Fang Ren, Chengming Wu, Jun Xu, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: The addition of zinc significantly improved the yield of methyl lactate from glucose, while other metals like indium, lanthanum, gallium, and nickel did not show the same improvements. The Zn-Sn-Beta catalyst showed a methyl lactate yield of 66.7% at 220 degrees Celsius.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Applied
Qiang Cai, Xiaoyang Yue, Wen-Sheng Dong
Summary: The bimetallic modified Fe-Sn/Beta catalyst showed high efficiency in converting glucose into methyl lactate, with good analytical performance and stability.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yan Wei, Jingjing Lu, Shuxian Zhang, Chengming Wu, Xiaoyao Nong, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: Nitrogen-doped carbon nanotube confined CuCo nanoalloy catalysts, prepared using ZIF-67 as a sacrificial template, were applied for the one-pot selective hydrogenation of levulinic acid (LA) to 1,4-pentanediol (1,4-PDO). The optimal catalyst achieved a high 1,4-PDO yield of 87.8% at full LA conversion. It also exhibited good recycling stability and could be reused at least 5 times.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Yang Cheng, Yong Chen, Shuxian Zhang, Xiaoting Wu, Chide Chen, Xin Shi, Ming Qing, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: Direct conversion of CO2 to aromatics using renewable hydrogen sources is a promising method to reduce CO2 emissions and replace fossil resources. A bifunctional catalyst, CuFeO2/hierarchical HZSM-5, demonstrated excellent performance in converting CO2 to aromatics. By eliminating external surface acidity, the selectivity of p-xylene in xylenes was significantly improved.
Article
Chemistry, Multidisciplinary
Chide Chen, Xiaoting Wu, Shuxian Zhang, Ming Qing, Mengying La, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: Ga-modified CuFeO(2) as a catalyst for CO2 hydrogenation to heavy olefins achieves a high heavy olefin selectivity of 53.5% at a single pass CO2 conversion of 41.5%, which is among the highest reported catalysts. It also demonstrates excellent long-term stability over 100 hours, showing promising potential for industrial applications.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Chengming Wu, Zhao Yang, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: A series of alkali metals doped phosphotungstic acid catalysts were prepared and applied for the renewable production of p-xylene. Among them, Cs1H2PW catalyst exhibited the best catalytic activity and p-xylene yield.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Kaiyun Lu, Ziyi Li, Chunhua Hai, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: In this study, two types of Ni phyllosilicates catalysts were prepared and exhibited excellent selective conversion of levulinic acid to 2-methyltetrahydrofuran. The catalyst derived from 1:1 Ni phyllosilicate showed the best catalytic performance.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Chemistry, Physical
Ningning Cao, Yong Chen, Kaiyun Lu, Chengming Wu, Buzaynafu Abudila, Jifan Li, Chun-Ling Liu, Wen-Sheng Dong
Summary: In this study, beta-Mo2C embedded in carbon microspheres was successfully prepared as an efficient catalyst for selective hydrogenolysis of 5-HMF to 2,5-DMF with a high yield of 91.6%. The optimal catalyst showed good recycling stability during four reuse runs.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Multidisciplinary
Yi-Hu Ke, Xue Wang, Hong-Yu Qin, Hai Liu, Hong Yuan, Chun-Ling Liu, Wen-Sheng Dong
NEW JOURNAL OF CHEMISTRY
(2020)
