Article
Materials Science, Multidisciplinary
Qianmeng Zhao, Jian Chen, Mengqian Fu, Lili Deng, Yunong Li, Qian Su, Weiguo Cheng
Summary: This study developed a new strategy to enhance the catalytic activity of PILs by regulating their structure. A gradient structure with enriched ionic liquids on the surface was formed by shortening the alkyl chain length of the IL monomer, allowing for better utilization of the active sites. The PIL with a 4-carbon alkyl chain exhibited the best catalytic activity, and further analysis revealed that the release of Br- enhanced the catalytic activity.
APPLIED MATERIALS TODAY
(2023)
Article
Engineering, Environmental
Gang Wang, Shirun Zhao, Haoyu Yao
Summary: The co-production of dimethyl carbonate (DMC) and ethylene glycol (EG) via transesterification of ethylene carbonate (EC) has been studied using metal chloride-based ionic liquids (ILs) as catalysts. The interaction between cation and methanol, as well as the activation of carbonyl group in EC by metal chloride-contained anion, showed synergistic effects on catalytic transesterification. The reaction rates were affected by the steric hindrance effect of the alkyl group substituted at the N atom in the imidazole ring. The Al2Cl7 species in AlCl3-based IL exhibited activity in the transesterification, and its content showed a linear relationship with the transformative rates of both EC and HEMC. The kinetic studies revealed that the reaction rates were first-order dependent on the concentrations of EC (or HEMC) and methanol, and the formation of HEMC intermediate was the kinetic-relevant step. The catalysis of [MDMIM]Cl/AlCl3 with an AlCl3 molar fraction of 0.67 showed higher performance compared to other metal chloride-based ILs, with a yield and selectivity of DMC (or EG) reaching up to 95% and 97%, respectively, after 12 hours of reaction at 140 degrees C. The IL also demonstrated good recyclability without decay in catalytic activity and selectivity after 10 times' recycling.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jun Zhang, Zhanying Chen, Yan Zhang, Shengyi Dong, Yufang Chen, Shiguo Zhang
Summary: By introducing alkoxy moieties into poly(ionic liquid)s, highly efficient adhesives with strong hydrogen bonding interactions can be designed, exhibiting excellent adhesive properties on various substrates. Furthermore, photosensitive or electronically conductive composite adhesives can be fabricated by utilizing the compatibility between ionic liquids and carbon nanotubes or silver nanofibers.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Jing Ding, Peiru Wang, Yuting He, Linyan Cheng, Xue Li, Cheng Fang, Hongping Li, Hui Wan, Guofeng Guan
Summary: By synthesizing porous sulfonyl binuclear carbonate poly(ionic liquid)s (SC-PILs), the efficient catalytic reaction of diluted CO2 with epoxides and methanol can be achieved, providing a better choice for high-value utilization of diluted CO2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Nanoscience & Nanotechnology
Xiaoqing Ming, Changgeng Zhang, Junjie Cai, He Zhu, Qi Zhang, Shiping Zhu
Summary: The research has developed a highly transparent, stretchable, and conducting ionoelastomer based on poly(ionic liquid) which solves the dilemma of simultaneous transparency and stretchability in the design of traditional conducting elastomers. This novel material possesses extremely high stretchability and good transparency, along with stable thermal, environmental, electrochemical, and mechanoelectrical properties. Applications such as underwater sensors and transparent dielectric elastomer actuators have been demonstrated using the ionoelastomer, showing great potential for next-generation soft electronics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Bihua Chen, Tong Ding, Xi Deng, Xin Wang, Dawei Zhang, Sanguan Ma, Yongya Zhang, Bing Ni, Guohua Gao
Summary: Acidic poly(ionic liquid)s with swelling ability (SAPILs) were designed and synthesized, showing moderate and single acid strength. SAPILs exhibited a unique three-dimensional honeycomb structure in water and high enrichment ability for cyclohexyl acetate, resulting in much higher catalytic activity compared to homogeneous acid catalysts.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Chemical
Jiaqiang Wang, Donglin Yang, Bingxiao Feng, Meng Xiao, Hengjun Gai, Tingting Huang, Yu Zhou, Hongbing Song
Summary: Considering the environmental issues caused by oily wastewater, researchers have paid extensive attention to the realization of oil-water separation. In this study, a series of hypercrosslinked poly(ionic liquid)s (HCPILs) were fabricated, which showed adjustable hydrophilicity and hydrophobicity. The designed materials selectively remove water or oil mixture, providing new ideas for solving future environmental problems such as offshore oil spills.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Duong Dinh Pham, Joungmo Cho
Summary: In this study, a low-energy catalytic route for methanolysis to convert PET resin to DMT was developed, achieving high DMT selectivity at ambient temperature by controlling the moisture level. The PET depolymerization apparently proceeded through two series of reaction steps, and the degradation of PET had a relatively low activation energy of 66.5 kJ mol(-1), which was accountable for catalytic methanolysis of PET at ambient conditions.
Article
Energy & Fuels
Wenqiang Liu, Yajuan Wang, Juan Zhang, Qingwen Shan
Summary: In this study, large particle spherical poly-ionic liquid-solid base catalyst (PILs-FL) was successfully synthesized by suspension polymerization and characterized. The optimal reaction conditions for vinyl carbonate and methanol reaction to form dimethyl carbonate (DMC) were determined. The PILs-FL catalyst exhibited high catalytic activity and stability under the optimized conditions.
Article
Chemistry, Physical
Yawen Fu, Yanan Xu, Zepeng Zeng, Abdul-Rauf Ibrahim, Jin Yang, Shuliang Yang, Yaqiang Xie, Yanzhen Hong, Yuzhong Su, Hongtao Wang, Yanliang Wang, Li Peng, Jun Li, Wendy L. Queen
Summary: Atmospheric CO2 concentrations are increasing due to the continued use of fossil fuels, which is a major cause of global warming. Research on the capture and conversion of CO2 into valuable products, such as cyclic carbonates, is thriving. This study introduces a novel mesoporous poly(ionic liquid) catalyst with dual active sites that shows excellent performance in CO2 cycloaddition reactions under mild conditions. The catalyst also demonstrates high compatibility, stability, and recyclability, making it a promising candidate for CO2 conversion.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Binxiong Guang, Wei Zhang, Yiwei Zhang, Yahui Xiao, Yong Liu
Summary: A novel process of cyclohexanol production based on cyclohexene esterification-hydrogenation using Cu(i) coordinated amino-functionalized poly(ionic liquid)s (PILs-Cu(i)) as catalysts has been developed. The PILs-Cu(i) exhibited excellent performance in the mild and highly selective hydrogenation of cyclohexyl acetate (CHA) to cyclohexanol (CHOL), achieving high conversion and selectivity. The catalyst also showed good stability and reusability after multiple recycling.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Polymer Science
Jiangli Li, Shengqi Ji, Xiaoliang Yu, Xiaoyan Yuan, Ke Zhang, Lixia Ren
Summary: In this study, the effect of topological structure on the magnetic property of magnetic poly(ionic liquid)s (MPILs) was investigated by synthesizing linear and bottlebrush magnetic polymers. It was found that the bottlebrush MPILs exhibited ferromagnetism at low temperature, while the linear analogue showed paramagnetism. The phase transition temperature from paramagnetism to ferromagnetism increased with the increasing grafting ratio.
Article
Polymer Science
Chun-Yeh Chu, Chiung-Cheng Huang, Tai-Wei Tseng, Ping-Hsun Tsai, Ching-Huang Wang, C. Will Chen
Summary: In this study, biodegradable starch-based plastics were enhanced by combining them with LPEEC, resulting in increased tensile strength and elongation at break compared to plastics without LPEEC. The mechanical properties of the plastics were found to be optimized by using LPEEC with specific molecular weight and molecular units.
Article
Energy & Fuels
Xiaoxuan Guo, Fenglei Zhang, Yaseen Muhammad, Zhaotian Cai, Lijing Gao, Ruiping Wei, Guomin Xiao
Summary: This work reports the preparation of a poly(ionic liquid)s catalyst Ag@Co-PIN-NH2 with dual functions of adsorption and activation, which enables the carboxylative cyclization and hydration reactions of propargylic alcohols under low pressure and concentration of CO2. The catalyst demonstrates broad substrate scope, excellent catalytic diversity and reusability. It provides important reference information for the conversion of carbon resources in industrial flue gas into valuable chemicals.
Article
Polymer Science
Bihua Chen, Man Wang, Xin Wang, Qi Zhao, Yingxiong Wang, Guohua Gao
Summary: A series of PILs based on VSpIm and NaSS were successfully synthesized and characterized, showing distinct swelling properties in solvents with delta(T) > 24.5 MPa1/2. The molar swelling ratio (Q(M)) was linearly positively correlated with the delta(T) value. The PILs also exhibited excellent enrichment properties in mixed solvents and showed higher catalytic activity in the hydration of alkyne compared to heterogeneous and homogeneous catalysts.
Article
Chemistry, Physical
Hao Hu, Xin Wang, Bihua Chen, Guohua Gao
Summary: Urea-functionalized poly(ionic liquid) catalysts exhibited high activity and stability in esterification and hydrolysis reactions, activated substrates through hydrogen bonding, and proposed a possible synergistic activation mechanism.
Article
Materials Science, Multidisciplinary
Wenxia Chen, Yingjie Hu, Peng Peng, Jinhai Cui, Junmei Wang, Wei Wei, Yongya Zhang, Kostya (Ken) Ostrikov, Shuang-Quan Zang
Summary: By synthesizing a paper-mulberry-inspired Co9S8@CoNi2S4/nickel foam heterojunction, this study demonstrates a simple method for producing a high-performance electrocatalyst with excellent catalytic activity and stability. The heterojunction benefits from the multidimensional building blocks and exhibits superior electrocatalytic activity for water splitting reactions.
SCIENCE CHINA-MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Yongya Zhang, Lilan Yi, Jinping Zhang, Xin Wang, Xincheng Hu, Wei Wei, Hua Wang
Summary: This review discusses the key technologies and scientific problems to be overcome for flexible lithium metal batteries (LMBs), as well as the recent advances and research progress in this field. The importance of flexibility evaluation and functionality integration for ensuring wearing safety in complex environments is emphasized.
SCIENCE CHINA-MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Hewen Yin, Yongya Zhang, Hui Dong, Lantao Liu, Xiaobing Wang, Yintang Zhang, Maotian Xu, Yanli Zhou
Summary: In this work, silver nanoclusters (AgNCs) were uniformly distributed on nitrogen-doped carbon (NCS) using N-vinyl functionalized imidazolium ionic liquids (ILs) as stabilizers and carbon precursors through in situ confinement polymerization. The fabricated AgNC@NCSs exhibited excellent electrochemical and catalytic properties due to their controlled structure and morphology, the unique layered structure of the carbon carriers, and the confinement effect. Furthermore, the AgNC@NCS material was utilized to fabricate a printing electrode, which served as an internal reference for ratiometric and accurate detection, and demonstrated superior nitrite sensing characteristics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Physics, Applied
Xin Wang, Bowei Cao, Qing Gao, Qian Cao, Pengfei Hu, Yongya Zhang, Wei Wei, Hua Wang
Summary: In this study, Ti3C2Tx MXene was used as a conductive binder for sodium ion batteries to improve the electrode performance. The designed Ge-Ti3C2Tx anode showed ultra-long lifetime and enhanced rate performance, and also exhibited good specific capacity even at low temperatures.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Lijing Wang, Jing Zhang, Yingmin Liu, Junmei Wang, Xiangyu Xu, Renquan Guan, Yongya Zhang, Weilong Shi, Yushan Liu, Zhao Zhao
Summary: In this study, a Ti3C2Tx/CuZnInS bifunctional photocatalyst was designed for efficient nitrogen fixation and degradation of BPA. Through experimental characterizations, the photocatalytic active substances, degradation pathway, and possible photocatalytic mechanism were investigated. This work lays a foundation for the design of environmentally friendly photocatalysts and their applications in the fields of environmental purification and energy conversion.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Review
Polymer Science
Hao Hu, Binshen Wang, Bihua Chen, Xi Deng, Guohua Gao
Summary: Swellable poly(ionic liquid)s (SPILs) are ionic polymers with unique swelling ability, which depends on the compatibility of polymer chains with solvent molecules and the dissociation of ionic groups in solvents. Compared to non-swellable poly(ionic liquid)s, SPILs have good solvent affinity and distinctive physicochemical properties, making them widely applicable in catalysts, actuators, sensors, absorbents, and separation membranes, among others.
PROGRESS IN POLYMER SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Limin Yu, Lijing Wang, Yanmeng Dou, Yongya Zhang, Pan Li, Jieqiong Li, Wei Wei
Summary: This review covers the recent advances of inorganic perovskite ferroelectric-based nanomaterials in the field of photoelectrochemistry, discussing the impact of ferroelectric polarization on photo-induced carrier separation and transportation in the interface of compounded semiconductors, and also explores the future prospects of ferroelectric-based nanomaterials.
Article
Chemistry, Multidisciplinary
Dongyun Han, Lei Liang, Yongya Zhang, Lilan Yi, Xincheng Hu, Wei Wei
Summary: In this study, highly dispersed GeO2@C composite material was successfully prepared by using molecular-level ionic liquids (ILs) as carbon sources. The obtained GeO2@C exhibited improved Na ion storage performances, including high reversible capacity (577 mA h g(-1) at 0.1C), high capacity retention (82.3% after 500 cycles), and good rate property (270 mA h g(-1) at 3C). The unique nanostructure of GeO2@C, with hollow spheres of GeO2 uniformly distributed in the carbon matrix, contributed to the improved electrochemical performance by alleviating volume expansion and particle agglomeration problems.
Article
Chemistry, Multidisciplinary
Bihua Chen, Shiguo Zhang, Yan Zhang
Summary: In this study, a poly(ionic liquid) catalyst with unique adsorption-swelling ability towards epoxides was synthesized through free radical polymerization. The catalyst showed superior CO2 cycloaddition performance under atmospheric pressure and cocatalyst-/metal-/solvent-free conditions. The adsorption-swelling property of the catalyst was controllable, reversible, and widespread, allowing for efficient and selective reaction. The catalyst also exhibited good reusability and stability after multiple cycles. This work provides new insights for improving CO2 cycloaddition activity and guides the design of efficient poly(ionic liquid) catalysts for atmospheric CO2 conversion.
Article
Engineering, Chemical
Xin Wang, Hao Hu, Bihua Chen, Lulu Dang, Guohua Gao
Summary: The synthesis of dimethyl carbonate (DMC) via transesterification of ethylene carbonate (EC) and methanol (MeOH) was an environmental and practical strategy. Poly(ionic liquid)s (PILs) with swelling abilities were synthesized, and their swelling ability in methanol (MeOH) could be modulated by changing the cross-linker content and chain length of alkyl-substituents on imidazolium. The swollen PILs showed a porous cross-linked network structure and exhibited excellent catalytic activities for the transesterification reaction.
GREEN CHEMICAL ENGINEERING
(2021)
Article
Polymer Science
Bihua Chen, Man Wang, Xin Wang, Qi Zhao, Yingxiong Wang, Guohua Gao
Summary: A series of PILs based on VSpIm and NaSS were successfully synthesized and characterized, showing distinct swelling properties in solvents with delta(T) > 24.5 MPa1/2. The molar swelling ratio (Q(M)) was linearly positively correlated with the delta(T) value. The PILs also exhibited excellent enrichment properties in mixed solvents and showed higher catalytic activity in the hydration of alkyne compared to heterogeneous and homogeneous catalysts.
Article
Chemistry, Applied
Bihua Chen, Tong Ding, Xi Deng, Xin Wang, Dawei Zhang, Sanguan Ma, Yongya Zhang, Bing Ni, Guohua Gao
Summary: Acidic poly(ionic liquid)s with swelling ability (SAPILs) were designed and synthesized, showing moderate and single acid strength. SAPILs exhibited a unique three-dimensional honeycomb structure in water and high enrichment ability for cyclohexyl acetate, resulting in much higher catalytic activity compared to homogeneous acid catalysts.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Wei Wei, Yongya Zhang, Lei Liang, Kefeng Wang, Qingfeng Zhou, Yanli Zhou, Hua Wang
Summary: A new in situ confined polymerization method was proposed for preparing highly dispersed Ge quantum dots to address the agglomeration problem in sodium ion batteries. The obtained Ge@C nanocomposite showed ultra-long cycle life and high rate capability when used as the anode material.
MATERIALS CHEMISTRY FRONTIERS
(2021)
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.
