Article
Chemistry, Inorganic & Nuclear
Ruirui Yun, Wei Zhang, Zan Zhang, Xiaoxuan Zhang, Zhaoxu Wang, Shizhong Luo
Summary: In this study, a series of core-shell catalysts Cu@NC/PC were designed and synthesized for the first time using a functional polymer assistant strategy. Cu@NC/PC-900-2 exhibited excellent catalytic performance in the hydrogenation of nitroarenes, attributed to its large BET surface area and uniformly dispersed metal sites. The honeycomb-like structure facilitated mass transfer and active site exposure. Both experimental and theoretical results indicated that the N-doping sites promoted the adsorption of nitro groups, resulting in high activity and selectivity under low H-2 pressure and temperature. Importantly, the catalyst also achieved high conversion in gram-scale catalytic processes, highlighting its practical application potential.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Na Li, Shijie Qu, Fangfang Qin, Huiyu Li, Wenzhong Shen
Summary: A nanoneedle-like CoP core coated by a P,N-codoped carbon shell was successfully fabricated as an efficient electrocatalyst for water electrolysis to generate hydrogen and oxygen. It displayed low overpotentials and high Faradaic efficiencies, outperforming precious-metal-based electrocatalysts and other carbon-coated transition-metal phosphides. This work provides a pathway for the rational design of carbon shell-coated transition-metal phosphides with low energy barriers for converting and storing electrochemical energy.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Physical
Guofeng Liu, Chunjun Chen, Jiajia Chen
Summary: Functionalized aniline, an important intermediate in industrial production, is in high demand. Catalytic hydrogenation is the dominant method for production, but electrocatalytic hydrogenation driven by renewable energy is more promising. This review summarizes the development of catalysts, in situ characterizations, theoretical calculations, and proposes future directions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Review
Chemistry, Physical
Guofeng Liu, Chunjun Chen, Jiajia Chen
Summary: This review discusses the importance of functionalized aniline as an important intermediate in industrial production, as well as the methods for hydrogenation to produce aniline. Catalytic hydrogenation is currently the dominant method in industrial production, while electrocatalytic hydrogenation driven by renewable energy shows promise for sustainable development. The review summarizes the development of catalysts to improve selectivity and reduce costs, provides in situ characterizations, theoretical calculations, and soluble redox mediators for mechanistic studies, and discusses the remaining challenges and potential directions in this research field.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Chunyu Yin, Xin Liu, Zhenli Xiang, Dongchuang Wan, Ruikun Jiang, Xiyuan Zhang, Jiaxin Yu, Yebin Zhou, Chaofan Ma, Chunhui Zhou, Feng Feng, Qunfeng Zhang, Chunshan Lu, Xiaonian Li, Yi Liu
Summary: This study reports a in situ S-doped NC graphene-like shell encapsulated cobalt nanoparticles catalyst, which exhibits excellent catalytic activity and reusability. The introduction of sulphur enhances the electron transfer between the metal and the graphene-like shell, thereby triggering the hydrogenation reaction.
APPLIED SURFACE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Somayeh Ostovar, Hamideh Saravani, Daily Rodriguez-Padron
Summary: A family of sulfonamide functionalized mesoporous materials was successfully synthesized and exhibited high catalytic activity and stability for biomass valorization reactions; these materials showed promising performance in levulinic acid and benzyl alcohol catalytic reactions, indicating potential applications in biomass upgrading processes.
Article
Chemistry, Applied
Jingcheng Wu, Dong Liang, Xiangbo Song, Tingsen Liu, Tianyi Xu, Shuangyin Wang, Yuqin Zou
Summary: In this study, a catalytic material with strong Lewis acidic-basic and Brønsted acidic-basic sites was successfully prepared by introducing sulfonic groups onto UIO-66. The material exhibited excellent catalytic performance in the selective catalytic transfer hydrogenation of furfural to furfuryl alcohol.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Wenbiao Zhang, Wanling Zhang, Jingwen Tan, Di Pan, Yi Tang, Qingsheng Gao
Summary: This study demonstrates the use of two-dimensional Pd-based metallenes as efficient electrocatalysts for the electrocatalytic hydrogenation of nitroarenes, showing the intrinsic promotion of active sites by alloying effects. Among them, a Pd-Mo metallene with a highly exposed active surface and strong electronic interactions between Pd and Mo atoms exhibits high selectivity (>90.0%) and faradaic efficiency (78.3%) for the chemoselective hydrogenation of 4-nitrostyrene (4-NS) to value-added 4-vinylaniline (4-VA), outperforming a homemade Pd metallene and commercial Pd/C.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Organic
Daniel Timelthaler, Wolfgang Schoefberger, Christoph Topf
Summary: A novel cobalt corrole catalyst was reported for the homogeneous hydrogenation of structurally diverse nitroarenes to amines, without the need for additional reagents, and can be easily assembled in a regular laboratory atmosphere.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Yuemin Lin, Renfeng Nie, Yuting Li, Xun Wu, Jiaqi Yu, Shaohua Xie, Yajing Shen, Shanjun Mao, Yuzhuo Chen, Dan Lu, Zongbi Bao, Qiwei Yang, Qilong Ren, Yiwen Yang, Fudong Liu, Long Qi, Wenyu Huang, Zhiguo Zhang
Summary: We report a novel non-precious metal catalyst consisting of single-atom cobalt for the selective reduction of functionalized nitroarenes to amines. The catalyst exhibits high catalytic activity, resistance to poisoning, and corrosion, showing great potential for applications in the chemical industry.
Article
Chemistry, Physical
Lu-Jie Zuo, Kun-Ze Xue, Shi-Long Xu, Yuan Kong, Hai-Wei Liang
Summary: This study reports the synthesis of structurally ordered Rh3Sn2 intermetallic catalysts, which exhibited a high selectivity of 95.1% in the hydrogenation of 4-nitrostyrene to 4-aminostyrene. Density functional theory calculations reveal that the addition of Sn atom significantly improves the adsorption of nitrostyrene through the nitro group on the Rh3Sn2 (110) surface. Moreover, a significant electronic effect is formed between Rh and Sn through charge transfer, making the Rh3Sn2 intermetallic compound more favorable for the hydrogenation of the nitro group.
Article
Chemistry, Physical
Ganjun Yang, Yanan He, Chengxi Zhang, Zongyu Sun, Mengxi Han, Pai Peng, Yaning Yue, Hongxia Liu, Lei Liu, Junwen Chen, Licheng Bai, Qiang Chen
Summary: In this study, the encapsulation of platinum clusters into a zeolite catalyst showed 100% selectivity and conversion in the selective hydrogenation reaction. The shape selectivity of the zeolite prevented direct interaction between the reactants and platinum, leading to a facilitated hydrogenation process.
Article
Chemistry, Multidisciplinary
Gourab Bhaskar, Ranjan K. Behera, Volodymyr Gvozdetskyi, Scott L. Carnahan, Raquel A. Ribeiro, Paul Oftedahl, Charles Ward, Paul C. Canfield, Aaron J. Rossini, Wenyu Huang, Julia V. Zaikina
Summary: Doping is an effective method to modify the structure and properties of compounds. In this study, the substitution of Ni with Co in layered LiNiB compounds was found to stabilize the high-temperature phase and result in a new structural motif. The doped LiNi0.7Co0.3B compound exhibited different reactions under ambient and anaerobic conditions, and showed excellent catalytic performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Xiaochun Liu, Chaoyue Wang, Jiaolong Meng, Xiaodong Yue, Qingyun Wang, Jiatian Lu, Junke Wang, Xicun Wang, Yingxiao Zong, Xuefeng Jiang
Summary: This study successfully synthesized a mesoporous catalyst with single-atomic cobalt active sites, and demonstrated its excellent performance and potential applications in the hydrogenation of nitroarenes.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Shenyu Liu, Jorge Ivan Amaro-Estrada, Marc Baltrun, Iskander Douair, Roland Schoch, Laurent Maron, Stephan Hohloch
Summary: The high-valent molybdenum(NHC) complexes show great catalytic potential in the deoxygenation of nitroarenes, with very low catalyst loading. Mechanistic investigations reveal potential active species in the catalytic cycle and the role of spin state in lowering the reaction barrier. Mechanistic details and potential routes for nitroarene reduction facilitation are further evaluated.
Article
Chemistry, Multidisciplinary
Xuemei Liu, Chaonan Cui, Shuoshuo Wei, Jinyu Han, Xinli Zhu, Qingfeng Ge, Hua Wang
Summary: This study presents a new strategy for designing efficient photocatalysts that can convert CO2 into hydrocarbons by utilizing synergistic catalytic sites. The findings provide a solution for the selective photocatalytic reduction of CO2 to CH4.
Article
Chemistry, Multidisciplinary
Chengxian Hu, Dan Wang, Lu Wang, Ying Fu, Zhengyin Du
Summary: A novel one-pot, three-component reaction conducted under electrochemical conditions was studied. The reaction involved 2-aminothiophenols, aldehydes, and malononitrile, using TBABF4 as an electrolyte and CuI as a catalyst. The proposed reaction mechanism suggested that CuI served as an electron relay. This method offers simplified operation, high atom economy, and mild reaction conditions.
Article
Chemistry, Multidisciplinary
Zhi Yang, Yu Chen, Linxi Wan, Yuxiao Li, Dan Chen, Jianlin Tao, Pei Tang, Fen-Er Chen
Summary: A highly enantioselective method for the complete hydrogenation of pyrimidinium salts using Ir/(S,S)-f-Binaphane complex as the catalyst was developed. This method provides easy access to fully saturated chiral hexahydropyrimidines, which are prevalent in many bioactive molecules. The reactions exhibit high yields and enantioselectivities under mild reaction conditions without additives. Successful application of this methodology in a continuous flow fashion further extends its practical utility.
Article
Chemistry, Multidisciplinary
Tina Jeoh, Jennifer Danger Nill, Wujun Zhao, Sankar Raju Narayanasamy, Liang Chen, Hoi-Ying N. Holman
Summary: In this study, the enzymatic hydrolysis of cellulose was investigated using real-time infrared spectromicroscopy. The spatial heterogeneity of cellulose was found to impact the hydrolysis kinetics. Hydration affected cellulose ordering, and Cel7A preferentially removed less extensively hydrogen bonded cellulose.
Article
Chemistry, Multidisciplinary
Tiphaine Richard, Walid Abdallah, Xavier Trivelli, Mathieu Sauthier, Clement Dumont
Summary: An effective method of grafting functionalities onto lignin based on glycerol carbonate has been developed using an efficient nickel-catalysed telomerisation reaction. This method allows lignin to have new reactive functions and reduces the glass transition temperatures of modified lignins, thereby expanding the application range of lignin-based resins.
Article
Chemistry, Multidisciplinary
Jing Qi, Xiyan Wang, Gan Wang, Srinivas Reddy Dubbaka, Patrick ONeill, Hwee Ting Ang, Jie Wu
Summary: This study presents a green and environmentally friendly approach for the synthesis of imides using electrocatalytic oxidation with H2O as the oxygen source. The method eliminates the need for toxic or expensive oxidants and achieves high yields under mild reaction conditions. It shows broad substrate compatibility and potential for industrial applications.
Article
Chemistry, Multidisciplinary
Babasaheb Sopan Gore, Lin-Wei Pan, Jun-Hao Lin, Yi-Chi Luo, Jeh-Jeng Wang
Summary: Here, we report a visible light-promoted intramolecular radical cascade reaction for the construction of fluorenol and naphthalene-fused cyclopropyl carbaldehyde derivatives. This method offers mild reaction conditions, a broad substrate scope, excellent step efficiency, and scalability, without the need for external chemical oxidants. The novelty of this protocol was demonstrated by synthesizing chrysene analogs and performing late-stage functionalizations.
Article
Chemistry, Multidisciplinary
Juho Antti Sirvio, Idamaria Romakkaniemi, Juha Ahola, Svitlana Filonenko, Juha P. Heiskanen, Ari Ammala
Summary: This article discusses the method of using supramolecular interaction between an aromatic hydrogen bond donor and lignin to achieve rapid delignification of softwood at low temperatures.
Article
Chemistry, Multidisciplinary
Yunyan Meng, Chunxiang Pan, Na Liu, Hongjiang Li, Zixiu Liu, Yao Deng, Zixiang Wei, Jianbin Xu, Baomin Fan
Summary: A novel visible light-driven synthesis method for 2,3-diamines has been developed, which has mild conditions, avoids the use of metal reagents, and can synthesize diamines and diols in one pot.
Article
Chemistry, Multidisciplinary
Mingqing Huang, Haiyang Huang, Mengyao You, Xinxin Zhang, Longgen Sun, Chao Chen, Zhichao Mei, Ruchun Yang, Qiang Xiao
Summary: A direct air-oxidized strategy for the synthesis of benzo[b]phosphole oxides was developed in this study. Arylphosphine oxides were transformed into phosphinoyl radicals, which were further combined with various alkynes to achieve the desired products. DFT calculations revealed the mechanism of phosphinoyl radical formation.
Article
Chemistry, Multidisciplinary
Anwei Wang, Jiayin Huang, Chunsheng Zhao, Yu Fan, Junfeng Qian, Qun Chen, Mingyang He, Weiyou Zhou
Summary: This study demonstrates an innovative strategy for the aerobic oxidation of C(sp(3))-H bonds using gamma-valerolactone. By optimizing the reaction conditions and utilizing specific catalysts, efficient oxidation of C(sp(3))-H bonds is achieved with good chemoselectivity in certain cases.
Article
Chemistry, Multidisciplinary
Shun Li, Likai Tong, Zhijian Peng, Bo Zhang, Xiuli Fu
Summary: Sulfide compounds show promise as electrocatalysts for water splitting, but their performance is limited by factors such as limited active sites and hindered substance transport. This study successfully prepared a high-entropy sulfide (ZnCoMnFeAlMg)(9)S-8, which reduced grain size and increased specific surface area, enabling the realization of a dual-functional catalyst with multiple catalytic sites. High entropy also modulated the electronic properties of sulfides, reducing the potential energy barrier for hydrolysis. This research introduces a new approach for functionalizing high entropy nanomaterials and improves the performance of water splitting catalysts.