Article
Chemistry, Multidisciplinary
Ajaysing S. Nimbalkar, Kyung-Ryul Oh, Seung Ju Han, Gwang-Nam Yun, Seung Hyeok Cha, Pravin P. Upare, Ali Awad, Dong Won Hwang, Young Kyu Hwang
Summary: The successful synthesis of finely tuned Ni1.5Sn nanoalloy phases from a mixed-metal zeolitic imidazolate framework (MM-ZIF) and its catalytic performance in the production of 1,2-propanediol (1,2-PDO) were investigated. The results demonstrated that the synergy between Ni-Sn alloy, finely dispersed Ni metallic sites, and the Lewis acidity of SnOx species-loaded ZnO played a pivotal role in the high activity and selectivity of the catalyst.
Review
Chemistry, Physical
Wei Zhou, Xinbin Ma
Summary: This review summarizes the roles of various active structures on Cu catalysts in glycerol hydrogenolysis, including Cu species as the primary active sites, the structure-sensitive effect of Cu in the reaction, the functions of support and promoter, and the roles of the secondary metal site. The critical factors that should be considered when investigating the Cu structure sensitive effect and the important research directions for Cu catalysts in glycerol hydrogenolysis are also outlined.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Norsahida Azri, Ramli Irmawati, Usman Idris Nda-Umar, Mohd Izham Saiman, Yun Hin Taufiq-Yap
Summary: The hydrogenolysis of biomass-derived glycerol to produce 1,2-propanediol was investigated using transition metal catalysts supported on dolomite. Among the catalysts tested, Cu/Dol catalyst exhibited the best performance due to the interaction between copper species and dolomite, leading to high glycerol conversion and high selectivity for 1,2-propanediol with low methanol by-product formation.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Marek Glowka, Tomasz Krawczyk
Summary: The production of 1,2-propanediol is facing significant challenges in the chemical industry due to the increasing demand and environmental regulations. The traditional method is energy intensive, therefore sustainable routes using renewable raw materials are becoming more attractive. This perspective reviews the current research and patents on 1,2-propanediol production, discussing alternative pathways, such as glycerol hydrogenolysis and biotechnological methods, and modern methods like chromium-free catalytic systems and multifunctional catalysts. Biobased 1,2-propanediol has the potential to replace traditional petroleum-derived 1,2-propanediol with environmental and economic benefits.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Victor G. S. Mendonca, Isabelle C. Freitas, Robinson L. Manfro, Mariana M. V. M. Souza
Summary: Cu-Ni / xMgO-Al2O3 catalysts were used for the hydrogenolysis of glycerol to produce 1,2-propanediol without the addition of external hydrogen. The addition of MgO to alumina improved the yield of 1,2-propanediol. The rate limiting step for MgO-Al2O3 catalysts is the hydrogenation of acetol, while Cu-Ni / MgO catalysts follow a basic route.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Energy & Fuels
Shan Liu, Zhiquan Yu, Chenyang Lu, Yao Wang, Fanfei Sun, Zhichao Sun, Yingya Liu, Chuan Shi, Anjie Wang
Summary: In this study, high-performance catalysts containing copper carbide (CuxC) were prepared for the hydrogenolysis of renewable glycerol towards 1,2-propanediol (1,2-PDO). The synthesis of Cu(OH)2-Zn(OH)2 mixture in a microchannel reaction system yielded highly dispersed precursors, and the addition of ZnO improved the dispersion of copper species with enhanced acidity. Copper carbide composite catalyst (Cu/Zn = 8) exhibited significantly higher hydrogenation activity and contributed to enhanced catalytic activity for continuous glycerol hydrogenolysis.
Article
Chemistry, Physical
Giuseppina Luciani, Giovanna Ruoppolo, Gianluca Landi, Valentina Gargiulo, Michela Alfe, Almerinda Di Benedetto
Summary: In this study, novel copper/zirconia catalysts were prepared by advanced preparation methods and characterized in detail. The catalyst prepared by copper deposition via metal-organic framework (MOF) on commercial zirconia showed the best catalytic performance, achieving a high yield in the upgrading reaction of glycerol.
Article
Green & Sustainable Science & Technology
Guang Li, Kang Li, Shuqi Ma, Yulong Zhang
Summary: A new process integrating biomass chemical looping hydrogen generation was designed and simulated to convert glycerol to methanol, ethylene glycol and 1,2-propanediol. The results showed that the output of methanol, ethylene glycol and 1,2-propanediol under certain conditions was 11095, 1142 and 5000 kg/h, respectively. The total energy efficiency was 53.8%, and the production costs and economic indicators were also evaluated.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Ana Luiza P. Salgado, Felipe C. Araujo, Andre V. H. Soares, Yutao Xing, Fabio B. Passos
Summary: The study investigates Ruthenium-copper bimetallic catalysts supported on modified zirconia for the hydrogenolysis of glycerol to produce 1,2-propanediol. The addition of copper to the Ru-based catalysts resulted in decreased glycerol conversion and increased selectivity to 1,2-propanediol. The best performing catalyst was bimetallic Ru-Cu/m-ZrO2, while catalysts supported on 3%SO4-ZrO2 showed lower activity likely due to sulfur poisoning. Addition of Cu to Ru led to site blockage and tuning of selectivity towards C-O cleavage.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Agricultural Engineering
Jianbin Huang, Jian Zhang, Shiyao Lu, Yehao Liang, Feng-Shou Xiao
Summary: The hydrothermal treatment of pure silica Beta zeolite supported copper species (Cu/Si-Beta-HT) has been found to be highly efficient for the catalytic conversion of glycerol to 1,2-propanediol, achieving a conversion rate of 96.0% and selectivity of more than 99.9%. The high dispersion of Cu nanoparticles in the catalyst is confirmed by TEM images and N2O titration experiments. Pyridine-adsorption FTIR spectra and NH3-TPD profiles suggest the presence of copper species as Lewis acidic sites in the catalyst. The hydrogenolysis of glycerol to 1,2-propanediol involves the dehydration of glycerol to acetol and the hydrogenation of acetol to 1,2-propanediol, catalyzed by copper cations and Cu nanoparticles, respectively. In situ FT-IR spectra and kinetic studies indicate that the dehydration step is slower than the hydrogenation step and is a key process for this reaction.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Fiseha Bogale Gebretsadik, Javier Ruiz-Martinez, Maria Dolores Gonzalez, Pilar Salagre, Yolanda Cesteros
Summary: The study investigated the effect of Ni-Cu bimetallic catalysts with different Ni:Cu ratios on the liquid phase hydrogenolysis of glycidol, showing that the addition of Cu and higher reaction temperatures decreased diol formation while increasing the 1,3-propanediol/1,2-propanediol ratio. This suggests that an appropriate amount of Cu enhances the collaborative effect between Ni and H+ ions, favoring the formation of 1,3-propanediol.
DALTON TRANSACTIONS
(2021)
Article
Agricultural Engineering
Bhushan S. Shrirame, Abhishek R. Varma, Swagat Sabyasachi Sahoo, Kalyan Gayen, Sunil K. Maity
Summary: This study explores the techno-economic feasibility of using glycerol to produce propanediols. Selective hydrogenolysis of glycerol can produce 1,2-propanediol, while microbial fermentation of glycerol can produce 1,3-propanediol with the co-production of 2,3-butanediol and ethanol. Process integration reduces utility demands, but utilities are still major operating costs. The production cost of 1,3-propanediol by batch fermentation is higher than that of 1,2-propanediol, while fed-batch fermentation of microbial 1,3-propanediol is economically viable.
BIOMASS & BIOENERGY
(2023)
Review
Chemistry, Physical
Mohamad Razlan Md Radzi, M. Devendran Manogaran, Mohd Hizami Mohd Yusoff, Zulqarnain, Mohd Razealy Anuar, Noor Fazliani Shoparwe, Mohd Fikri Ab Rahman
Summary: The study explores the possibility of producing 1,2-propanediol and 1,3-propanediol through aqueous phase reforming, which offers a low temperature requirement and high H-2 yields. Various catalyst combinations have been identified for optimal yields, with a Cu-based catalyst and a noble metal-dopant-support combination being key factors for 1,2-propanediol and 1,3-propanediol production respectively. The findings show potential for high yields of both products, especially for 1,2-propanediol.
Article
Chemistry, Multidisciplinary
Ram Singh, Prakash Biswas, Prateek K. Jha
Summary: Quantum chemistry calculations were used to evaluate the efficacy of Cu-based catalysts in the glycerol hydrogenolysis reaction. The results showed that the conversion of glycerol to 1,2-propanediol was favored in the catalyzed system. Additionally, the doping of Zn or ZnO had an influence on the activation barriers of the reaction.
Article
Chemistry, Physical
Mukesh Kumar Poddar, Ankit Pandey, Mukund Kumar Jha, Suresh Chandra Andola, Syed Saif Ali, Sonu Bhandari, Govind Kumar Sahani, Rajaram Bal
Summary: This study investigated the effect of Cu and Ni on the hydrogenolysis of glycerol to produce 1, 2-Propanediol, finding that Cu nanoparticles are critical for the selective production of the desired product. The mesoporous alumina support played a crucial role in enhancing the performance of Cu and Ni oxide particles, with both acid and metal functions contributing to increasing selectivity for 1, 2-Propanediol.
MOLECULAR CATALYSIS
(2021)
Article
Engineering, Chemical
Jiuxuan Zhang, Chunhua Zhang, Hong Jiang, Yefei Liu, Rizhi Chen
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Physical
Chunhua Zhang, Jiuxuan Zhang, Yanhua Shao, Hong Jiang, Rizhi Chen, Weihong Xing
Summary: One-dimensional N-doped carbon nanofibers were successfully fabricated by electrospinning for synthesizing Pd@N-CNFs catalysts, which exhibited excellent performance in the selective hydrogenation of phenol to cyclohexanone. The Pd@N-CNFs-1.5 catalyst had good fibrous morphology, larger surface area, and more surface functional groups, with high reusability and significantly improved catalytic activity compared to other Pd@N-CNFs.
Article
Chemistry, Physical
Chunhua Zhang, Zhiwei Pan, Xinru Zhu, Hong Jiang, Rizhi Chen, Weihong Xing
Summary: The ZIF-67 doping enhances the formation of ZIF-derived hierarchical porous carbon nanofibers (ZCNFs) with more defects, larger surface area, hierarchical pore structure, higher N content, and better Pd dispersion, thereby improving the catalytic activity of Pd@ZCNFs in phenol hydrogenation to cyclohexanone. The Pd@ZCNFs-20 catalyst shows superior catalytic performance in the phenol hydrogenation process and is easily recoverable due to its one-dimensional structure, demonstrating good reusability over six reaction cycles.
Article
Engineering, Chemical
Minghui Zhou, Manman Liu, Hong Jiang, Rizhi Chen
Summary: This study successfully prepared Pd-ZIF-L-GO composite catalysts with high catalytic activity by adjusting the drying temperature, showing excellent performance in the reduction of nitroarenes and other hydrogenation reactions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Yanhua Shao, Jiuxuan Zhang, Hong Jiang, Rizhi Chen
Summary: Metal organic framework (MOF) derivatives, porous N-doped carbons (CN), were used as catalyst carriers for the selective hydrogenation of phenol to produce cyclohexanone. The synthesis process involved pyrolysis in a H-2/Ar atmosphere followed by acid etching, resulting in improved catalytic properties of the Pd@CN catalysts due to enhanced porosity and Pd loading. The as-fabricated Pd@CN-H catalyst displayed good reusability in recycling tests, demonstrating the potential utilization of MOF-derived hybrid carbon materials in catalysis.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Cong Wang, Yefei Liu, Lei Xu, Meizhong Qiu, Hong Jiang, Rizhi Chen
Summary: The rebound behaviors of particles on bubbles are influenced by various factors such as particle size, liquid properties, and viscosity. Hydrophilic particles cannot adhere on gas bubbles in pure water, but adhesion occurs in high viscosity liquids. Increasing particle size and liquid viscosity can prolong the contact time between particles and bubbles.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Engineering, Chemical
Meizhong Qiu, Yefei Liu, Lei Xu, Cong Wang, Hong Jiang, Rizhi Chen
Summary: A membrane-assisted stirred slurry reactor was developed by introducing a membrane tube into a stirred tank, and simulations using Euler-Lagrange method showed good agreement with experimental data on cake mass and particle deposition patterns. The presence of the membrane tube created an asymmetric flow field, with shear stress on the membrane surface directly affecting particle deposition. Increasing impeller speed reduced particle deposition, and positioning the membrane tube close to the impeller decreased cake mass. Upward liquid flow from a pitched-blade impeller resulted in lower shear stress, making a vertical-blade impeller preferable.
CHEMICAL ENGINEERING & TECHNOLOGY
(2021)
Review
Engineering, Chemical
Hong Jiang, Yefei Liu, Weihong Xing, Rizhi Chen
Summary: This review summarizes the application of porous membrane reactors in liquid-phase catalytic reactions, categorizing them into different types and discussing their respective research progress. It also examines the impacts of reactor design, preparation methods, and operating parameters on reaction efficiency.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Hong Jiang, Xinhui Shen, Fengnan Wang, Jiuxuan Zhang, Yan Du, Rizhi Chen
Summary: The study successfully synthesized TpPa-1 COF via a green and convenient low-temperature calcination method, prepared Pd@COF catalysts, and demonstrated good catalytic performance in phenol hydrogenation reaction.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Qingqing Chen, Hong Jiang, Rizhi Chen
Summary: The novel Co@CN/CM catalytic membrane shows superior catalytic activity in the reduction of p-nitrophenol, with a conversion rate of over 99% and excellent reusability.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Engineering, Chemical
Hong Jiang, Manman Liu, Minghui Zhou, Yan Du, Rizhi Chen
Summary: This study synthesized a novel Pd@HZIF catalyst using a weak-acid etching method, achieving hierarchical ZIFs with abundant mesopores which favored the loading of Pd nanoparticles. The as-fabricated Pd@HZIF-30-2 catalyst exhibited superior catalytic performance in p-nitrophenol reduction, with good reusability for four reaction cycles, showing great potential in the synthesis of hierarchical ZIF-based composites for catalysis.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Xinru Zhu, Zhiwei Pan, Hong Jiang, Yan Du, Rizhi Chen
Summary: Hierarchical Pd/UiO-66-NH2-SiO2 nanofibrous catalytic membranes were fabricated, with the addition of a small amount of water during the solvothermal process resulting in smaller UiO-66-NH2 nanoparticles with micropores and mesopores, providing more surface areas for loading Pd and enhancing active sites, leading to 3 times higher catalytic activity compared to Pd/SiO2. The as-fabricated Pd/UiO-SiO2-3.75 also exhibited good recyclability during five reaction cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Organic
Jinghui Hu, Qiang Du, Yao Zhao, Fei Zhang, Rizhi Chen, Jianrong Steve Zhou, Xiaojin Wu
Summary: A nickel-catalyzed intermolecular arylcyanation reaction of 8-aminoquinolinyl beta,gamma-unsaturated amides is reported. Diverse beta-cyano gamma-aryl amides with exclusive chemo- and regioselectivity were directly obtained through a three-component reaction. The practicality of this approach was further demonstrated through multigram scale reactions, expanded transformations of the nitrile product, late-stage modification of complex molecules, and direct drug synthesis.
Article
Chemistry, Organic
Huihui Shao, Yao Zhao, Shuangqiang Wang, Rizhi Chen, Jianrong Steve Zhou, Xiaojin Wu
Summary: This study developed a Pd-catalyzed chemo- and regiocontrollable 1,1-diarylation reaction that allows for the reaction of unactivated aliphatic alkenes with two aryl halides. In this process, the first aryl insertion reaction involves beta-H elimination, while the second aryl insertion reaction is terminated by C-H bond formation.
Article
Chemistry, Multidisciplinary
Zhiwei Pan, Xinru Zhu, Hong Jiang, Yefei Liu, Rizhi Chen
Summary: Flexible and hierarchical Pd/SiO2-TiO2 nanofibrous catalytic membranes were successfully fabricated through a combination of electrospinning and two-step hydrothermal method. By adjusting the distribution of TiO2 nanorods, the catalytic activity was significantly improved while maintaining good mechanical properties.
JOURNAL OF EXPERIMENTAL NANOSCIENCE
(2021)
