Article
Chemistry, Physical
Jiangtao Peng, Ruifeng Guo, Xiongxi Shi, Peiping Zhang, Fagui Qiu, Wenqing Li, Cundi Wei, Shiding Miao
Summary: A new type of clay-supported catalyst has been developed for the cycloaddition of CO2 using metal-free ionic liquids immobilized on ball clay. The catalyst demonstrates excellent performance and suitability for the reaction.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Haolin Du, Yifei Ye, Ping Xu, Jianmin Sun
Summary: This study developed a novel catalyst, PIL-DVB-IV, for the cycloaddition of CO2-epoxide. The catalyst exhibited high yield and selectivity, excellent recyclability, and generality to various epoxides. The proton migration catalytic mechanism of PIL-DVB-IV catalyst was revealed through computational analysis. The kinetic process of the catalyst was illustrated through the study of catalytic reaction kinetics and computation.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Multidisciplinary
Abdelghani El Mouat, Chryslain Becquet, Jeremy Ternel, Michel Ferreira, Herve Bricout, Eric Monflier, Mohammed Lahcini, Sebastien Tilloy
Summary: This study reports the reductive hydroformylation of methyl 10-undecenoate in a biphasic liquid/liquid system. Under optimized conditions, the use of a specific ionic liquid immobilized rhodium/amine catalytic system allows for high yield of primary alcohols, which can be recycled.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
David Valverde, Raul Porcar, Marcileia Zanatta, Sergio Alcalde, Belen Altava, Victor Sans, Eduardo Garcia-Verdugo
Summary: Developing efficient and sustainable methods to convert CO2 into valuable chemicals is crucial for decarbonization in the chemical industry. In this study, a novel multi-scale approach combining hydrogen bonding ability, metal-free catalysts, and supported ionic liquids on polymers was developed for the cycloaddition of CO2 to epoxides. The use of additive manufacturing allowed for the digital design and rapid fabrication of structured reactors, which showed higher catalytic activity compared to packed bed reactors of similar size.
Article
Chemistry, Physical
Minchen Du, Yanyan Gong, Chao Bu, Jia Hu, Yongxing Zhang, Cheng Chen, Somboon Chaemchuen, Ye Yuan, Francis Verpoort
Summary: A catalytic system using AgNO3/ionic liquid was developed for the simultaneous synthesis of oxazolidinones and α-hydroxyl ketones with excellent catalytic activity and recyclability. Mechanistic investigations revealed the derivative active species of N-heterocyclic carbene silver complexes and CO2 adducts, which were beneficial for the catalytic activity in the reaction.
JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Chemical
Chong Chen, Tao Sun, Yupeng Chen, Yukun Zhang, Nengjie Feng, Hui Wan, Guofeng Guan, Jun Ma
Summary: This study reports a strategy to enhance the catalytic performance of ionic-liquid polymers for CO2 transformation by controlling the polymer structure. By pre-grafting and self-polymerization, high content and even distribution of ionic sites within the polymer framework were achieved. The unique structural features allowed the adequate exposure of active sites during CO2 cycloaddition with epoxides, resulting in remarkable catalytic performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Jiangtao Peng, Haowei Sun, Jian Wang, Peiping Zhang, Weikun Ning, Yan Wang, Wei Zhang, Wenqing Li, Cundi Wei, Shiding Miao
Summary: A highly efficient catalyst for CO2 conversion was developed by encapsulating ZnBr2/IL in Hal, showing excellent adsorption capacity and catalytic performance, providing strong support for the cycloaddition of CO2.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Physical
Yongjing Hao, Xiuli Yan, Zheng Zhu, Tao Chang, Xiaocai Meng, Xiying Fu, Balaji Panchal, Lianwei Kang, Shenjun Qin
Summary: Resource utilization of CO2 to add value to chemicals in the preparation of cyclic carbonates has gained interest, with nitrogen-rich urea covalent organic polymers being designed as effective catalysts for cycloaddition reactions under mild conditions. The results showed promising yield of cyclic carbonates and a mechanistic insight into the activation of epoxide and CO2 using DFT calculations.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Physical
Liguang Dou, Yadi Liu, Yuan Gao, Jiangwei Li, Xiucui Hu, Shuai Zhang, Kostya (Ken) Ostrikov, Tao Shao
Summary: Plasma-catalysis is a promising solution for industrial decarbonization, with insights on catalyst design and plasma effects. The study highlights the significance of Ov in catalytic reactions and specific pathways for liquid oxygenate production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Yin-Hang Chai, Ying Zhao, Xi-Yan Liu, Zi-Yan Cui, Bang-Tun Zhao, Lu-Fang Ma
Summary: Two metal-organic frameworks (MOFs) were prepared through a hydrothermal reaction. These MOFs exhibited excellent fluorescence-sensing performances towards Cr2O72- and were used for ratiometric detection using antibiotics for the first time. Furthermore, they served as efficient heterogeneous catalysts for the fixation of CO2 with various epoxides.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Green & Sustainable Science & Technology
Alejandro Belinchon, Ruben Santiago, Elisa Hernandez, Cristian Moya, Pablo Navarro, Jose Palomar
Summary: This work investigates two closed-cycle processes for the regeneration of homogeneous catalysts based on ionic liquids through liquid-liquid extraction. The study demonstrates the efficiency of liquid-liquid extraction as a separation method for cyclic carbonates and ionic liquid catalysts.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Ye Yuan, Jia Hu, Yu Wang, Leilei Huang, Jiayun Zheng, Yufeng Zhao, Yiyun Chen, Cheng Chen, Francis Verpoort
Summary: In this study, diverse alpha-hydroxy ketones were efficiently synthesized using an economical catalytic system. The system showed excellent activity under atmospheric CO2 or mimetic flue gas, and achieved the highest turnover number reported for the target reaction. Additionally, this is the first reported Cu catalytic system with reliable recyclability.
JOURNAL OF CATALYSIS
(2022)
Review
Chemistry, Physical
Huan Wang, Yunyan Wu, Yanfei Zhao, Zhimin Liu
Summary: Efficient utilization of CO2 is crucial for sustainable development, and recent research efforts have focused on converting CO2 into value-added products. Ionic liquids have shown great potential as catalysts for the selective conversion of CO2 into valuable chemicals under mild conditions.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Chemistry, Multidisciplinary
Tengfei Wang, Danning Zheng, Yuhang Hu, Jingsheng Zhou, Yi Liu, Jinglai Zhang, Li Wang
Summary: A new ionic liquid catalyst, C[CMImBrTMG](2), with multiple active centers, was synthesized for the coupling reaction of CO2 with epoxides. It showed excellent performance in producing chloropmpylene carbonate (CPC) with a high yield, and can be easily separated from the catalytic system.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Multidisciplinary
Man Dong, Jie Zhou, Jun Zhong, Hai-Tao Li, Chun-Yi Sun, Yi-Dong Han, Jun-Ning Kou, Zhen-Hui Kang, Xin-Long Wang, Zhong-Min Su
Summary: Photoreduction of exhaust gas from power plant by Ni@TPHH-COF showed appealing yield and selectivity, achieving AQY of 3.96% under 10% CO2 concentration, ranking among the highest reported photocatalysts. The mechanism suggests CO2 plays a dual function, selectively enriching catalytic sites and improving reaction rate.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Organic
Wen-Bin Huang, Meng Yang, Liang-Nian He
Summary: In this study, a selective method for the synthesis of N-alkylated indole products was developed via hydroxymethylation using formic acid. This metal-free process under mild conditions, using an organic base as the catalyst, represents an alternative strategy for the indirect utilization of CO2. This method has significant practical value.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Wen-Feng Wang, Li-Qi Qiu, Kai-Hong Chen, Hong-Ru Li, Lie-Feng Feng, Liang-Nian He
Summary: In this study, phosphorus-doped hollow polygonal g-C3N4 rods were prepared and showed enhanced catalytic activity and selectivity in the photocatalytic CO2 reduction reaction. The material can be reused multiple times.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Zhi-Wen Yang, Jin-Mei Chen, Ze-Long Liang, Wen-Jun Xie, Bin Zhao, Liang-Nian He
Summary: This study presents a paired electrolysis strategy for reducing CO2 to HCOOH and oxidizing HMF to FDCA, which has great economic and environmental benefits. A Ni(OH)(2) anode was fabricated, showing the significant role of the membrane in the electrocatalytic process. A novel bismuth-based metal-organic framework material was synthesized, which effectively catalyzed the reduction of CO2 to HCOOH. By fixing the cathodic potential, high FE of HCOOH and FDCA can be simultaneously produced in a single electrolyzer.
Article
Chemistry, Organic
Li-Qi Qiu, Xiangyang Yao, Yong-Kang Zhang, Hong-Ru Li, Liang-Nian He
Summary: Chemical conversion and utilization of CO2 are crucial for sustainable development. Reductive conversion and photocatalytic reduction provide effective methods for utilizing CO2. Indirect transformation strategies and CO2 reductive functionalization can enhance the diverse products derived from CO2 and promote CO2 reductive conversion into a new stage.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Kaihong Chen, Jiadong Xiao, Junie Jhon M. Vequizo, Takashi Hisatomi, Yiwen Ma, Mamiko Nakabayashi, Tsuyoshi Takata, Akira Yamakata, Naoya Shibata, Kazunari Domen
Summary: This research successfully developed a SrTaO2N-based particulate photocatalyst for visible light-driven overall water splitting. The loading of RuIrOx nanoparticles promoted charge separation and enhanced the water splitting activity of SrTaO2N photocatalyst.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Heng Li, Song Gao, Wei-Hang Xie, Liang-Nian He, Hong-Ru Li
Summary: A magnetic catalyst (Fe3O4@SiO2-IM-SO3H) was developed for the efficient synthesis of polyol ricinoleates via esterification. The catalyst showed good magnetic properties and sulfonic groups, which promoted the esterification reaction and facilitated catalyst separation. The polyol ricinoleates yield reached 99.5% and the catalyst could be recycled for multiple times without significant reduction in activity, demonstrating its potential for sustainable and green product development.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Chemical
Heng Li, Fang-Yu Ren, Hong-Ru Li, Liang-Nian He
Summary: Biomass-based polymers have attracted significant attention due to their ability to be regulated using functional materials. This study focused on the synthesis of nonisocyanate polyurethane (NIPU) using ricinoleic acid-derived cyclic carbonate and aliphatic diamine, with the incorporation of octa(aminopropyl) polyhedral oligomeric silsesquioxane (OAP-POSS) as a poly-amine for introducing POSS units and regulating the properties of the material. The curing process was monitored using Fourier transform infrared spectroscopy, and it was found that a curing time of 12 hours at 50 degrees Celsius was sufficient for polymerization. Different NIPUs modified with various molar fractions of OAP-POSS were obtained, and the material with 100% substitution of OAP-POSS for diamine showed the highest thermal stability, shore hardness, and water resistance.
POLYMER ENGINEERING AND SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Li-Qi Qiu, Hong-Ru Li, Liang-Nian He
Summary: CO2 conversion to valuable chemicals is an effective way to reduce CO2 emissions. We developed carbonaceous and metal-organic framework (MOF)-based catalysts for nonreductive and reductive CO2 conversion, and explored novel strategies for CO2 capture and in situ transformation. Nanomaterial-based catalysts show high stability and efficiency, and are also promising in photocatalytic CO2 reduction and electrocatalytic CO2 reduction.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Review
Chemistry, Physical
Wen-Jun Xie, Olga M. Mulina, Alexander O. Terent'ev, Liang-Nian He
Summary: Metal-organic frameworks (MOFs) are used for catalysis due to their high surface area and porous structure. They show potential for selective electrocatalytic CO2 reduction reaction (ECO2RR) into formic acid (HCOOH). This review discusses the preparation methods of MOFs as electrocatalysts and their advantages. Various MOFs and their derivatives, including metal nanomaterials, carbon-based nanocomposites, single-atom catalysts, and bimetallic nanocomposites, are highlighted. The diversity and controllable modulation of catalytic performance of MOF-based catalysts are dependent on the building units and reaction conditions. Challenges and future research directions of MOF-based catalysts are proposed.
Review
Chemistry, Multidisciplinary
Qing-Wen Song, Ran Ma, Ping Liu, Kan Zhang, Liang-Nian He
Summary: The chemical conversion of CO2 into valuable chemicals or fuels is highly attractive for its green and sustainable features. However, practical technologies for CO2 utilization are limited, and there have been no significant industrial developments in this area. Recent studies have shown that catalytic activation of CO2 and/or substrates plays a significant role in promoting CO2 functionalization. Advances in molecular activation and synergistic activation strategies have led to the successful production of valuable chemicals with high efficiency.
Article
Chemistry, Multidisciplinary
Kaihong Chen, Jiadong Xiao, Takashi Hisatomi, Kazunari Domen
Summary: Solar-driven water splitting based on particulate semiconductor materials is studied as a technology for green hydrogen production. Transition-metal (oxy)nitride photocatalysts are promising materials for overall water splitting (OWS) via a one- or two-step excitation process because their band structure is suitable for water splitting under visible light. Yet, these materials suffer from low solar-to-hydrogen energy conversion efficiency (STH) due to various limitations such as high defect density, low charge separation and migration efficiency, sluggish surface redox reactions, and poor thermal stability. Strategies for improving photocatalytic activity and challenges for future development of transition-metal (oxy)nitride-based OWS systems are discussed.
Article
Chemistry, Organic
Olga M. Mulina, Mikhail M. Doronin, Liang-Nian He, Alexander O. Terent'ev
Summary: Electrochemical sulfonylation of alkenes using disulfides as starting reagents is demonstrated. This reaction is a rare example of disulfides as S-partners in electrochemical C-S coupling reactions. Previously, only sulfenylation reactions occurred with disulfides, leading to sulfides that required further oxidation to form sulfones. In this newly discovered process, vinyl sulfones are selectively formed. The reaction is carried out in an undivided electrochemical cell with a platinum anode and stainless-steel cathode under constant current conditions using KI as a supporting electrolyte and redox catalyst. Both radical and ionic pathways are proposed to be involved in the formation of the desired products based on control experiments, CV study, and literature data.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Multidisciplinary Sciences
Jiadong Xiao, Mamiko Nakabayashi, Takashi Hisatomi, Junie Jhon M. Vequizo, Wenpeng Li, Kaihong Chen, Xiaoping Tao, Akira Yamakata, Naoya Shibata, Tsuyoshi Takata, Yasunobu Inoue, Kazunari Domen
Summary: There is a trade-off between improving crystallinity and minimizing particle size in the synthesis of perovskite-type transition-metal oxynitrides. In this study, the researchers overcome this limitation by using thermal nitridation to fabricate sub-50 nm ATaO2N (A = Sr, Ca, Ba) single nanocrystals with excellent crystallinity and tunable long-wavelength response. The SrTaO2N nanocrystals modified with a tailored Ir-Pt alloy@Cr2O3 cocatalyst showed significantly improved efficiency in hydrogen evolution compared to previously reported SrTaO2N photocatalysts, achieving a record solar-to-hydrogen energy conversion efficiency of 0.15% in Z-scheme water splitting. These findings enable the synthesis of perovskite-type transition-metal oxynitride nanocrystals and pave the way for the manufacturing of advanced long-wavelength-responsive particulate photocatalysts for efficient solar energy conversion.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Wen-Jun Xie, Jin-Mei Chen, Zhi-Wen Yang, Liang-Nian He
Summary: A novel molecular catalyst, cobalt 5,15-diazaporphyrin, was developed and immobilized onto carbon nanotubes for highly efficient electrocatalytic CO2 reduction to CO. The catalyst exhibited a faradaic efficiency above 99% at -0.7 V and -0.8 V versus a reversible hydrogen electrode. The decrease in electronegative nitrogen atoms at the meso position effectively increased the electron density of the central metal, facilitating the reaction with Lewis acid CO2.
Article
Chemistry, Multidisciplinary
Jin-Mei Chen, Wen-Jun Xie, Zhi-Wen Yang, Liang-Nian He
Summary: In this study, molecular engineering of copper phthalocyanines (CuPc) was carried out to modify the electron-withdrawing groups (EWGs) and electron-donating groups (EDGs). PPy-coated CuPc catalysts were prepared and found to effectively catalyze the electrochemical reduction of CO2 to methane. The introduction of EWGs significantly improved the selectivity towards methane, while modification with EDGs reduced the selectivity. This research provides a facile and effective molecular engineering approach for the preparation of electrocatalysts for CO2 reduction.
