Review
Chemistry, Physical
Peiyu Zhao, Junfen Yan, Bingquan Shan, Yu Zhang, Zhiyuan Zhao, Li Liu, Zhi Su, Wei Cheng, Xianmang Xu
Summary: The control of Cu nanoparticles in carbon supported Cu catalysts is crucial for the industrialization of the oxidative carbonylation of methanol to DMC. This paper reviews recent approaches in controlling Cu nanoparticles and discusses the problems and prospects of carbon supported Cu catalysts for DMC preparation.
MOLECULAR CATALYSIS
(2023)
Article
Energy & Fuels
Kyu Min Lee, Jun Ho Jang, Mani Balamurugan, Jeong Eun Kim, Young In Jo, Ki Tae Nam
Summary: Electrochemical reduction of CO2 to produce fuel precursors and additives has traditionally been limited in product variety and overall efficiency. A recent study successfully utilized redox-neutral reactions to convert CO2 into dimethyl carbonate in methanol with high Faradaic efficiency, and expanded to diethyl carbonate. This approach shows promise in broadening the scope of products and improving efficiency through innovative design strategies.
Article
Chemistry, Physical
Chunzheng Wang, Ningkun Xu, Ting-Ting Liu, Weisong Xu, Hailing Guo, Yanpeng Li, Peng Bai, Xin-Ping Wu, Xue-Qing Gong, Xinmei Liu, Svetlana Mintova
Summary: This study reveals the impact of mechanical compression on Pd/NaY catalysts, which enhances the selectivity of the oxidative carbonylation of methanol to DMC by controlling the ratio of Pd species. The Pd clusters obtained under mechanical treatment show excellent catalytic performance, highlighting the importance of considering structural changes in metal-containing zeolite catalysts in heterogeneous catalysis.
JOURNAL OF CATALYSIS
(2021)
Article
Engineering, Chemical
Kai Cai, Ying Li, Hongbao Shen, Zaizhe Cheng, Shouying Huang, Yue Wang, Xinbin Ma
Summary: This study investigated the reaction mechanism of DME carbonylation using density functional theory calculations on HPW and HSiW models. The research found that the acidity of Bronsted acid sites has an impact on reactivity, with comparisons of activation barriers revealing the most favorable reaction mechanism and rate-limiting step.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Chemical
Chengwei Liu, Ziyi Chi, Yong Yan, Zhenyang Lu, Xue-Gang Li, Jian-Min Yan, Man Luo, Wende Xiao
Summary: This study investigates the tunable transesterification of dimethyl carbonate (DMC) with ethanol to synthesize ethyl methyl carbonate (EMC) and diethyl carbonate (DEC) using a solid alkaline catalyst. The catalyst displayed high activity for the reaction, with the selectivities of EMC and DEC being tunable by adjusting the space velocity and feed ratio. The findings contribute to the development of co-solvents for electrolytes in lithium-ion batteries.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yu-Fen Bao, Yi-Jie Wang, Yu-Chen Wang, Ding-Hua Liu
Summary: By studying the influence of ionic liquid base strength, we successfully synthesized a potassium imidazole (KIm) organic base catalyst with high catalytic activity and stability, solving the issue of catalyst deactivation in transesterification. The results showed that KIm performed better than most previously reported catalysts, achieving chemical equilibrium within 3 minutes and yielding 73.03% dimethyl carbonate (DMC) in the synthesis from propylene carbonate (PC) and methanol (MeOH). Moreover, the catalyst maintained its activity after ten reaction cycles, meeting the requirements for industrial production.
Article
Chemistry, Applied
Chunzheng Wang, Weisong Xu, Zhengxing Qin, Hailing Guo, Xinmei Liu, Svetlana Mintova
Summary: Enhanced interactions between palladium and EMT zeolite inhibit sintering of palladium clusters and maintain Pd2+ active sites, which is crucial for the excellent performance of the catalyst in the indirect oxidative carbonylation of methanol to DMC.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Engineering, Environmental
Lulu Peng, Yanhong Quan, Jinxian Zhao, Jun Ren
Summary: Cu catalysts supported on nitrogen-doped carbon derived from peanut shells exhibited superior catalytic performance in the oxidative carbonylation of ethanol. The high surface Cu-0 and Cu+ concentration played a key role in accelerating the activation of ethanol molecules and promoting the insertion of CO.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Hui Bai, Mengmeng Ma, Bing Bai, Lanyun Bai, Yonghui Bai, Jianping Zuo, Vladimir Vinokurov, Wei Huang
Summary: The modification of H-mordenite zeolite (HMOR) with pyridine (Py) and Zn species significantly improves the catalytic activity for the carbonylation of dimethyl ether (DME) to methyl acetate (MA). Py enters BASs selectively to prolong the catalytic lifetime of HMOR, while Zn2+ ions enhance the efficiency of MA formation.
Article
Energy & Fuels
Jie Tuo, Jilong Wang, Xianchen Gong, Chengwei Zhai, Hao Xu, Teng Xue, Jingang Jiang, Yejun Guan, Peng Wu
Summary: Enriching aluminum atoms in T2 and T4 sites of FER zeolite is crucial for achieving high catalytic activity in the carbonylation reaction of dimethyl ether. This study successfully synthesized FER nanosheets with preferential aluminum distribution, and found that the assistance of CTAB played a key role in regulating the morphology and aluminum distribution.
Article
Chemistry, Physical
Xinyue Liu, Weinan Tang, Shujie Liu, Xiong Chen, Yupeng Li, Xiaoying Hu, Liang Qiao, Yi Zeng
Summary: The research focuses on exploring the potential of using graphdiyne (GDY) as a promising substrate for single atom catalysts (SACs) in CO oxidation reactions. The study reveals that CO adsorption on Ni-GDY or co-adsorption of CO and O-2 on Cu-GDY is more favorable than O-2 adsorption, leading to a preference for CO oxidation starting with the LH reaction with a lower energy barrier.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yuchun Wang, Zhaorong Liu, Chao Tan, Hong Sun, Zhong Li
Summary: CuY and CuMY (M = Fe, Co, Ni) catalysts prepared by modified vapor impregnation showed good catalytic performance in the oxidative carbonylation of methanol to dimethyl carbonate (DMC). The addition of iron group promoters improved the space-time yield of DMC production, but also influenced the selectivity of the reaction pathway.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Applied
Mauro Alvarez, Jennifer Cueto, David P. Serrano, Pablo Marin, Salvador Ordonez
Summary: This study focuses on improving the formulation and preparation methods of catalysts for the production of dimethyl carbonate. By using suitable catalyst preparation methods and copper salt precursors, the researchers successfully produced catalysts with optimal performance for dimethyl carbonate formation.
Article
Chemistry, Physical
Jiajun Wang, Tingjun Fu, Fanhui Meng, Dan Zhao, Steven S. . C. Chuang, Zhong Li
Summary: A micropore-rich mesoporous carbon (MMC) derived from ordered mesoporous carbon (OMC) is used as a support to prepare a highly active nano Cu2O catalyst for methanol oxidation carbonylation. The well-dispersed Cu nanoparticles with high purity of Cu2O are obtained, leading to significantly enhanced performance in terms of space-time yield and turnover frequency of DMC. The introduction of plentiful under-coordinated carbon atoms in the micropores plays a key role in immobilizing Cu precursors and accelerating the auto-reduction of CuO to form high-purity Cu2O, thereby enhancing the intrinsic activity of the catalyst.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Applied
Jaroslav Aubrecht, Oleg Kikhtyanin, Violetta Pospelova, Iva Paterova, David Kubicka, Federica Zaccheria, Nicola Scotti, Nicoletta Ravasio
Summary: According to green chemistry principles, the ester hydrogenolysis process needs a new environmentally-friendly catalyst design due to the unsustainability and environmental risks brought by the current Adkins CuCr2O3 catalyst. We investigated eight catalysts prepared using different methods and supports, and found that the synthesis method significantly affects the dispersion and activity of the resulting copper phase. The ZrO2-based catalysts prepared by chemisorption-hydrolysis showed higher activity and selectivity compared to the SiO2-based catalysts prepared by incipient wetness impregnation.
Article
Chemistry, Physical
Yuting Li, Xiaoxia Han, Chaofan Zhao, Lin Yue, Jinxian Zhao, Jun Ren
Article
Engineering, Chemical
Jinxian Zhao, Ruina Shi, Yanhong Quan, Junjie Liu, Juan Wang, Yongli Pei, Xuhui Wang, Zhong Li, Jun Ren
CHEMICAL ENGINEERING SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Xiaoxia Han, Lin Yue, Chaofan Zhao, Shaohua Jiang, Junjie Liu, Yuting Li, Jun Ren
Article
Chemistry, Physical
Jiangwei An, Xuhui Wang, Jinxian Zhao, Shaohua Jiang, Yanhong Quan, Yongli Pei, Mengmeng Wu, Jun Ren
MOLECULAR CATALYSIS
(2020)
Article
Energy & Fuels
Yahong Han, Yanhong Quan, Panpan Hao, Jinxian Zhao, Jun Ren
Article
Nanoscience & Nanotechnology
Ruina Shi, Jinxian Zhao, Yanhong Quan, Xuhui Wang, Jiangwei An, Junjie Liu, Wei Sun, Zhong Li, Jun Ren
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Mengmeng Wu, Xiaoxiong Hou, Yanhong Quan, Jinxian Zhao, Jun Ren
Article
Engineering, Chemical
Xuhui Wang, Jinxian Zhao, Ying Li, Shouying Huang, Jiangwei An, Ruina Shi, Yongli Pei, Zhong Li, Jun Ren
Summary: ZrO2 is a potential catalyst for the direct synthesis of DMC, with m-ZrO2 showing higher DMC yield than t-ZrO2. The amount and strength of surface Brønsted acid sites play a crucial role in the catalytic performance of ZrO2, and m-ZrO2's smaller band gap enhances its catalytic activity for DMC synthesis.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Energy & Fuels
Yahong Han, Jinxian Zhao, Yanhong Quan, Shunan Yin, Shiping Wu, Jun Ren
Summary: The doping of La2O3 into CeO2 resulted in decreased grain size of Ni particles, increased Ni electron cloud density, and accelerated CO dissociation, leading to improved CO methanation activity. Additionally, enhanced oxygen vacancies were helpful in improving the anticoking properties of the catalyst.
Article
Engineering, Chemical
Ruina Shi, Jinxian Zhao, Yanhong Quan, Yongli Pei, Xuhui Wang, Zhong Li, Jun Ren
Summary: The strategy of wrapping metal nanoparticles in graphene shells to design highly active and stable catalysts shows promising potential. The nitrogen-doped graphene-coated copper nanoparticles composite exhibited superior catalytic performance and stability in reactions such as the oxidative carbonylation of methanol to dimethyl carbonate.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Yongli Pei, Yanhong Quan, Xuhui Wang, Jinxian Zhao, Ruina Shi, Zhong Li, Jun Ren
Summary: Cu/NCNS-x catalysts were fabricated to address deactivation issues in DMC synthesis caused by Cu NPs. The study revealed the mechanism of Cu reconstruction during the reaction process.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Shiping Wu, Wei Sun, Xuhui Wang, Jinxian Zhao, Yan Li, Yanhong Quan, Jun Ren
Summary: The role of Zn promoter in the synthesis of methyl formate (MF) from methanol was investigated using density functional theory (DFT) calculations on Zn-doped Cu(111) alloy and Cu(111) surfaces. The rate determining step (RDS) was found to be the dehydrogenation of CH3O to CH2O on both surfaces, but the energy barrier was lower on the Cu3Zn(111) alloy surface. The Cu3Zn(111) alloy surface exhibited a kinetically favorable coupling for CH3O-CHO formation and effectively suppressed the formation of by-product CO.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Yahong Han, Yanhong Quan, Jinxian Zhao, Jun Ren
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Multidisciplinary
Chao Miao, Junjie Liu, Jinxian Zhao, Yanhong Quan, Tao Li, Yongli Pei, Xiaoliang Li, Jun Ren
NEW JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Xiaoxiong Hou, Jinxian Zhao, Junjie Liu, Yahong Han, Yongli Pei, Jun Ren
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)