Article
Chemistry, Physical
Abhishek Kumar, Ritu Bhardwaj, Joyanta Choudhury
Summary: This research successfully established a catalytic transfer hydrogenation process for the conversion of chemically captured CO2 into MeOH using ethylene glycol as the hydride donor. The Ru(II)-CNN pincer catalyst and TMEDA were found to be the most effective combination, resulting in a MeOH yield of up to 64% and 112 catalytic turnovers. The use of a dilute CO2 stream (10% in N2) also provided a similar MeOH yield of approximately 70% in this integrated protocol.
Article
Chemistry, Physical
Xinwei Chen, Liguo Wang, Chanjuan Zhang, Weixia Tu, Yan Cao, Peng He, Jiachen Li, Huiquan Li
Summary: In this study, the Cu-C@SiO2-R catalyst prepared by ammonia evaporation method showed excellent catalytic performance and stability in ethylene carbonate hydrogenation. The modification with graphite oxide helped maintain the stability of Cu particle size and copper valence balance, improving the catalytic activity of the catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Wei-Qi Yan, Rui-Jia Zhou, Li-Jun Jing, Yue-Qiang Cao, Jing-Hong Zhou, Zhi-Jun Sui, Wei Li, De Chen, Xing-Gui Zhou, Yi-An Zhu
Summary: Silver (Ag) is identified as the best catalyst for the production of methyl glycolate (MG). Unsupervised machine learning is used to determine the stable adsorption configurations, and Ag3Zn1, Ag3Sn1, and Ag3Mg1 catalysts are selected as promising bimetallic catalyst candidates.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
Youwei Yang, Dawei Yao, Mengjiao Zhang, Antai Li, Yueqi Gao, Busha Assaba Fayisa, Mei-Yan Wang, Shouying Huang, Yue Wang, Xinbin Ma
Summary: A series of Mo-doped Cu/SiO2 catalysts were prepared and used for the hydrogenation of ethylene carbonate (EC), with the 0.5 wt% Mo-doped catalyst exhibiting the highest catalytic performance. The addition of Mo can enhance copper dispersion and prevent aggregation, leading to improved activation of EC. The insights gained from this study may help in designing more efficient copper-based catalysts for the hydrogenation of carbon-oxygen bonds.
Article
Chemistry, Applied
Mengting Gao, Zelin Li, Baozheng Zhao, Shitao Yu, Lang Huang, Qiong Wu
Summary: Nickel-tungsten co-doped spherical carbon-based catalysts (m%Ni-n%W-GCT) were synthesized using glucose as a carbon host via one-pot hydrothermal-carbonization. The presence of Ni during hydrogen reduction led to the transformation of tungsten structural composition from WOx -> W -> WCx, attributed to the carburizing reaction. The carbon-based catalysts exhibited developed porous structures with acidity that increased with increasing tungsten loading content and showed promising catalytic activity in cellulose hydrogenolysis, with high selectivity for ethylene glycol achieved under optimized reaction conditions.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Ekkachai Martwong, Yvette Tran
Summary: The study reports on the synthesis and temperature-responsive properties of poly(PEGMA) hydrogel thin films. Surface-attached poly(PEGMA) hydrogel films were synthesized using a simple, versatile, and well-controlled thiol-ene click reaction method, with the transition temperature finely tunable by adjusting the number of PEG units. The LCST properties of the hydrogel films are not sensitive to salt, holding promise for applications in biology such as injectable hydrogels, drug delivery systems, microfluidic valves, and flow switches for biotechnologies.
Article
Chemistry, Applied
Yue Liu, Wei Zhang, Haichao Liu
Summary: Tungsten-based catalysts, including WO3 and H2WO4, can selectively cleave C-C bonds in sugar intermediates during the conversion of cellulose to ethylene glycol and propylene glycol. The catalysts undergo reduction to HxWO3 species during the reaction, which act as heterogeneous catalysts and are re-oxidized to WO3 upon exposure to ambient air after the reaction. The activity of WO3 is strongly dependent on its crystallite size and surface area.
CHINESE JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Simin Sun, Deng Pan, Huijiang Huang, Zheng Wang, Yan Xu, Yujun Zhao
Summary: Selective hydrogenation of 2-ethyl-2-hexenal to 2-ethylhexanal was achieved using a N-doped Pd catalyst supported on porous carbon. The N-doped Pd/NC catalyst showed excellent catalytic conversion and selectivity, which can be attributed to the enhanced electron density on the Pd surface due to N doping, leading to improved adsorption and activation of hydrogen molecules.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Energy & Fuels
Jin Zhang, Mengting Gao, Pengqi Zhu, Yunwei Wang, Ruiyi Wang, Zhanfeng Zheng
Summary: This study developed an oxygen vacancy enriched MgAl-layered double hydroxide supported Co3O4 nanoparticle photocatalyst, which showed excellent catalytic performance under visible light irradiation, achieving high conversion and high selectivity in the hydrogenation reaction.
Article
Chemistry, Physical
Yangyang Zhou, Chen Chen, Qiling Li, Yanbo Liu, Ting Wei, Youzhen Liu, Zebing Zeng, Darren Bradshaw, Bing Zhang, Jia Huo
Summary: In this study, a new method for highly selective hydrogenation of α, β-unsaturated aldehydes in aqueous phase was reported, achieving precise control of all potential products by adjusting the role of AB in transfer and/or catalytic hydrogenation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Chemical
Bing Zhang, Chen Yang, Yingfei Zheng, Yonghong Wu, Chunfeng Song, Qingling Liu, Zhi Wang
Summary: Mixed matrix membranes (MMMs) prepared by incorporating Pebax polymers with 20 wt% PEG and 30 wt% NaY zeolite exhibited the maximum CO2/N2 selectivity of 107.9 and CO2 permeability of 172.6 Barrer. The designed membrane could directly enrich the concentration of CO2 from 15% to 96.7% in one step for CO2/N2 mixed gas.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Mingyang Deng, Dingsheng Wang, Yadong Li
Summary: Selective hydrogenation of unsaturated aldehydes/ketones is a crucial reaction in the fine chemical industry. This review comprehensively discusses the adsorption and activation mechanism, as well as the influence of catalyst structures on selective hydrogenation. It also reviews the application of single-atom site catalysts and related catalysts in this process.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Biotechnology & Applied Microbiology
Xiangpeng Kong, Ruihan Wu, Peihong Yuan, Yuehuan Wu, Ruihong Wang, Xiliang Chang, Man Wang, Xiaoyu Wang, Jiangang Chen
Summary: Cu-doped CoCu/ZnO catalysts were successfully synthesized and applied to the selective hydrogenation of syngas-derived dimethyl oxalate (DMO) to produce ethylene glycol (EG). The Cu content significantly influenced the properties and structures of the catalysts. The CoCu20/ZnO catalyst with 20.0 wt% Cu additive exhibited the highest DMO conversion and EG yield, and showed excellent thermal stability.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Haishuai Cui, Xiaoqing Liao, Yufan Ren, Yang Zhou, Jing Xiao, Renjie Deng, Yang Lv, Huajie Liu, Pingle Liu, Hai Yang
Summary: In this article, a facile strategy is proposed to synthesize oxygen-defect-rich Co3O4@NC porous nanorods. These materials are proven to have FLPs sites. The oxygen-defect-rich Co3O4@NC exhibits high selectivity and catalytic performance towards cinnamaldehyde.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Physical
Fakhrony Sholahudin Rohman, Syed Hussaini Syed Sulaiman, Norashid Aziz
Summary: The study focused on utilizing a copper-based catalyst for gas-phase dimethyl oxalate hydrogenation to produce ethylene glycol, achieving optimal conversion, selectivity, and yield through simulation software and multivariable optimization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Qujiang Sun, Zhen Cao, Zheng Ma, Junli Zhang, Wandi Wahyudi, Gang Liu, Haoran Cheng, Tao Cai, Erqing Xie, Luigi Cavallo, Qian Li, Jun Ming
Summary: This study thoroughly investigates the functions of electrolyte components in lithium-ion batteries, sheds light on their roles at the molecular scale, and successfully develops a new non-flammable electrolyte.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yeguo Zou, Zheng Ma, Gang Liu, Qian Li, Dongming Yin, Xuejian Shi, Zhen Cao, Zhengnan Tian, Hun Kim, Yingjun Guo, Chunsheng Sun, Luigi Cavallo, Limin Wang, Husam N. Alshareef, Yang-Kook Sun, Jun Ming
Summary: Electrolyte design is crucial for improving the performance of lithium-ion batteries. However, conventional electrolytes pose safety risks due to their flammability and reactivity at high voltage and extreme temperatures. In this study, a non-flammable fluorinated ester electrolyte was designed, which demonstrated high cycling stability and superior power capability for a graphite||LiNi0.8Co0.1Mn0.1O2 (NCM811) battery operated at high voltage (>4.3 V vs. Li/Li+) and wide temperature variations (-50 degrees C-60 degrees C). Furthermore, the research provided new insights into the molecular-level dynamics and interactions among Li+, solvent, and anion, and facilitated the development of high-safety and high-energy-density batteries for harsh conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Leilei Li, Haoran Cheng, Junli Zhang, Yingjun Guo, Chunsheng Sun, Min Zhou, Qian Li, Zheng Ma, Jun Ming
Summary: Aqueous electrolyte design plays a crucial role in enhancing the energy density and lifespan of aqueous batteries. Various electrolytes have been developed to lower the activity of H2O and mitigate the decomposition. However, a universal model to explain the improved performance is lacking. This Focus Review presents a quantitative and graphical model of the electrolyte solvation structure and metal-ion (de)solvation process to understand the relationship between the electrolyte-electrode interfacial chemistry and electrode performance.
ACS ENERGY LETTERS
(2023)
Article
Engineering, Chemical
Hao Li, Yingwei Li, Ruirui Wang, Sheng Zhong, Ruirui Zhang, Ruixia Liu
Summary: In this study, an ionic liquid-mediated method was successfully developed to construct oxygen vacancies (OVs) in defective Co3V2O8 catalyst, which exhibited excellent performance in cyclohexane oxidation. The ionic liquids not only acted as structure-directing agents but also promoted the formation of OVs through coordination with Co2+ and V5+, accelerating the redox cycle and enhancing substrate activation and electron transfer. This design presents a facile strategy for constructing OVs using ionic liquids and provides insights into OV-rich mixed metal oxides in selective oxidation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Yeguo Zou, Gang Liu, Yuqi Wang, Qian Li, Zheng Ma, Dongming Yin, Yao Liang, Zhen Cao, Luigi Cavallo, Hun Kim, Limin Wang, Husam N. N. Alshareef, Yang-Kook Sun, Jun Ming
Summary: High-voltage lithium metal batteries, with their excellent energy density, face challenges from oxidation decomposition of electrolytes and uncontrolled lithium dendrite growth. A solvation structure engineering strategy is proposed to design a nonflammable fluorinated electrolyte, which demonstrates superior cycling stability for a LiNi0.8Co0.1Mn0.1O2 (NCM811)-based Li-metal battery. By tuning intermolecular interactions, the electrolyte and electrode performance can be stabilized, providing a pathway for electrolyte design in metal ion batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yuqi Wang, Zhen Cao, Wandi Wahyudi, Zheng Ma, Yao Liang, Luigi Cavallo, Qian Li, Jun Ming
Summary: The classical model of using a half-cell composed of electrode and metal to examine electrode performance in batteries may not be reliable if the electrolyte is chemically unstable. This study demonstrates how the solvent can chemically react with the metal and form by-products that influence the electrode potential and reactions. The study also emphasizes the importance of designing a compatible electrolyte to accurately evaluate electrode performance in batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yuqi Wang, Zhen Cao, Zheng Ma, Gang Liu, Haoran Cheng, Yeguo Zou, Luigi Cavallo, Qian Li, Jun Ming
Summary: We detected the presence of weak solvent-solvent interactions in electrolytes using nuclear magnetic resonance and found that these interactions play a significant role in stabilizing the electrolytes, which is a novel discovery. By studying the role of ethylene carbonate (EC) solvent in lithium-ion battery electrolyte, we found that EC can stabilize linear carbonate solvent electrolyte, particularly diethyl carbonate (DEC), through weak intermolecular interactions, enhancing the energy difference between the orbitals of the Li+(EC)(x)(DEC)(y) complex and demonstrating strong capability against reduction. Our findings were further confirmed in other metal ion batteries (e.g., Na+, K+), highlighting the importance of electrolyte design and deeper understanding of battery performance.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Honghong Liang, Zheng Ma, Yuqi Wang, Fei Zhao, Zhen Cao, Luigi Cavallo, Qian Li, Jun Ming
Summary: This study achieves reversible lithium-ion (de)intercalation in a propylene carbonate (PC)-based electrolyte containing a fluoroether by tuning the solvent-solvent interaction, providing an opportunity to enhance the compatibility of PC-based electrolytes with graphite anodes.
Article
Chemistry, Multidisciplinary
Yuqi Wang, Zheng Ma, Zhen Cao, Tao Cai, Gang Liu, Haoran Cheng, Fei Zhao, Luigi Cavallo, Qian Li, Jun Ming
Summary: Binder in lithium-ion batteries plays a crucial role in ensuring stability by adhering electrode materials tightly. Various binder molecules have been designed to enhance adhesion capability and conductivity. This study reveals that the binder also influences the lithium-ion solvation process on the electrode surface, leading to different side reactions, rate capabilities, and tolerance against solvent insertion.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Editorial Material
Chemistry, Multidisciplinary
Haoran Cheng, Zheng Ma, Qian Li, Jun Ming
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yingwei Li, Shengxin Chen, Ying Jin, Xinxin Li, Ruirui Zhang, Ruixia Liu
Summary: A series of CHR-VOx were prepared by controllable hydrogen treatment and reduced to states dominated by V5+ and V4+ species. The catalytic roles of V-species and O-species for cyclohexane oxidation were explored. The surface properties of CHR-VOx underwent remarkable changes, leading to significant improvement in catalytic performance. XPS and Raman confirmed the reduction behavior. Moderate-reduced CHR-VOx with 78.7% multi-liganded-oxygen (O-L) showed the best conversion for cyclohexane (11.8%), while over-reduced CHR-VOx with a large content of V4+ species (33%) exhibited the best selectivity for adipic acid (44.3%). O-L sites were identified as the active sites for cyclohexane activation, while V4+ species were regarded as oxygen vacancies (OVs) contributing to further oxidation to adipic acid.
Article
Nanoscience & Nanotechnology
Yingwei Li, Hao Li, Kexin Li, Ruirui Wang, Ruirui Zhang, Ruixia Liu
Summary: Nanostructured cerium-based catalytic materials have attracted much attention in the field of redox catalysis due to the active sites on the nanocrystal surface. This study focused on the oxygen vacancy (O-V) and crystal facet effect of nanostructured ceria (Nano-CeO2) for catalytic cyclohexane oxidation. The catalytic roles of O(V) and acid sites were investigated for different crystal facets of CeO2 nanocubes, nanopolyhedrons, and nanorods.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yumei Liu, Deshuai Yang, Guixiang Zeng, Kexin Li, Shuang Wei, Hao Li, Min Ji, Ruixia Liu
Summary: In this study, a simple ruthenium/deep eutectic solvent catalytic system was developed to efficiently catalyze the alkoxycarbonylation reaction of alkenes under mild conditions, without the use of sensitive ligands or acid additives. The catalyst system showed high conversion and selectivity for ester production.
Article
Chemistry, Physical
Muhammad Faizan, Yingwei Li, Xingsheng Wang, Piao Song, Ruirui Zhang, Ruixia Liu
Summary: This study synthesized modified VPO catalysts using deep eutectic solvents and evaluated their catalytic performance in the oxidation of n-butane. The results showed that deep eutectic solvents could regulate the chemical state of the catalyst surface, leading to improved n-butane conversion and maleic anhydride selectivity.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Qian Li, Zhen Cao, Haoran Cheng, Junli Zhang, Zheng Ma, Wandi Wahyudi, Luigi Cavallo, Qujiang Sun, Jun Ming
Summary: In this study, a novel alloy/conversion-based anode was developed, which utilized a carbon-modified metal oxide microdumbbell structure to stabilize high-capacity alloy nanoparticles. The performance of storing sodium was greatly enhanced by optimizing the electrolyte.
ACS MATERIALS LETTERS
(2022)
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.