Article
Multidisciplinary Sciences
Chaoyu Tian, Jiangang Yang, Cui Liu, Peng Chen, Tong Zhang, Yan Men, Hongwu Ma, Yuanxia Sun, Yanhe Ma
Summary: The study presents the structure-guided engineering of phosphatases to improve substrate specificity and catalytic efficiency, leading to the conversion of sucrose and starch into fructose and mannose. The research also demonstrates the potential of this innovative sugar-biosynthesis strategy in high-yield manufacturing of other monosaccharides and polyols.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Junyan Fu, Feng Shen, Xiaoning Liu, Xinhua Qi
Summary: In-situ MgO-doped ordered mesoporous carbon (OMC@MgO) was fabricated using a formaldehyde-free self-assembly method, with biomass-derived tannin as the carbon precursor and Mg2+ as the cross-linker and catalyst precursor. The OMC@MgO exhibited well-controlled mesoporous structures, high surface area, and good catalytic activity, achieving a high fructose yield with good selectivity from glucose. It also showed tolerance to high glucose concentrations and maintained recyclability.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Physical
Luke Forster, Mohamed M. M. Kashbor, James Railton, Sarayute Chansai, Christopher Hardacre, Marco Conte, Carmine D'Agostino
Summary: Sn and Ga doped zeolite Y catalysts were studied for the isomerization of glucose to fructose in different solvents. Ethanol favored a Lewis acid site catalyzed pathway, while methanol resulted in an equal distribution of products. The catalysts were inactive in water due to strong solvent adsorption. The results provide evidence of the importance of solvent adsorption properties in zeolites for glucose to fructose isomerization and may aid in designing and optimizing catalytic systems.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Tao-Yuan Yu, Qian Niu, Yifa Chen, Meng Lu, Mi Zhang, Jing-Wen Shi, Jiang Liu, Yong Yan, Shun-Li Li, Ya-Qian Lan
Summary: A sevenfold interpenetrating 3D covalent organic framework (TPDT-COF) was synthesized and applied for selective photoisomerization and photocyclization of stilbene under mild conditions. By changing the gas atmosphere, cis-stilbene or phenanthrene can be formed with >99% selectivity. The study provides insights into the application of porous crystalline materials in selective photoisomerization and photocyclization.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
Murilo Amaral-Fonseca, Roberto Morellon-Sterling, Roberto Fernandez-Lafuente, Paulo Waldir Tardioli
Summary: A new single-step saccharification and isomerization process using immobilized commercial enzymes has been proposed in this study, achieving high efficiency in high fructose syrup production by optimizing pH, temperature, and enzyme ratio. Experimental results show that this method not only improves yield, but also reduces catalyst loss, with good recyclability.
Article
Chemistry, Multidisciplinary
Mian Laiq Ur Rehman, Qidong Hou, Xinyu Bai, Yifan Nie, Hengli Qian, Tianliang Xia, Ruite Lai, Guanjie Yu, Meiting Ju
Summary: Alkali and alkaline-earth-metal-doped carbon nitride exhibit strong alkalinity and superior catalytic performance in the selective isomerization of glucose to fructose.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Li-Qun Jin, Xian-Xiao Chen, Yi-Ting Jin, Jun-Kang Shentu, Zhi-Qiang Liu, Yu-Guo Zheng
Summary: The study successfully improved the operational stability of glucose isomerase in E. coli by preparing immobilized cells with modified diatomite, leading to high yield production of D-fructose at 60 degrees C. The immobilized cells demonstrated good stability and high productivity in continuous operation, making them a promising biocatalyst for High Fructose Corn Syrup production.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2021)
Article
Agriculture, Multidisciplinary
Zhaohui Guo, Christian M. Pedersen, Pengfei Wang, Minjun Ma, Yingqing Zhao, Yan Qiao, Yingxiong Wang
Summary: The study demonstrates that PAMAM dendrimers serve as effective catalysts for the isomerization of D-glucose, with experiments and isotope experiments revealing the reaction mechanism.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Agriculture, Multidisciplinary
Xinnan Ma, Wenrui Huang, Yongqing Song, Juan Han, Jiacong Wu, Lei Wang, Yun Wang
Summary: This study developed a novel recyclable mVBA-b-P(AAm-co-AN)pglucose isomerase biocatalyst with improved substrate affinity and catalytic efficiency. Compared to the free enzyme, this biocatalyst showed superior stability and recyclability, making it a potential candidate for industrial production of high-fructose syrup.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Chemistry, Applied
Yayati Naresh Palai, Abhijit Shrotri, Miyuki Asakawa, Atsushi Fukuoka
Summary: A highly efficient Lewis acid catalyst for the isomerization of glucose to fructose was synthesized by controlling the dispersion of Sn on SBA15. The catalyst exhibited high selectivity and fructose yield, while mechanisms involving condensation of Sn with silanol groups on SBA15 were proposed. Despite deactivation due to byproduct deposition in the third cycle, catalyst activity could be restored by calcination.
Article
Chemistry, Physical
Ping Zhu, Sebastian Meier, Shunmugavel Saravanamurugan, Anders Riisager
Summary: Commercial Y zeolites can be modified by alkaline treatment to create new mesoporous structures and increase tetrahedral extra-framework acidic aluminum, significantly improving the efficiency of catalyzing glucose isomerization to fructose.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Miriam El Tawil-Lucas, Maia Montana, Miguel Macias-Villasevil, Jovita Moreno, Jose Iglesias
Summary: In this study, the selective isomerization of aldoses into ketoses using different commercial Bronsted basic anion resins at low temperature conditions was investigated. Strong basic resins, especially IRA-900, showed the best performance, yielding fructose with high selectivity.
Article
Chemistry, Multidisciplinary
Ki Hyun Nam
Summary: Glucose isomerase plays a crucial role in sugar metabolism and industrial applications, including the production of high-fructose corn syrup and bioethanol. This review presents an overview of the functions, structure, and applications of glucose isomerase, as well as recent advancements in its characterization and engineering.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Alicia Coloma, Alexandra Velty, Urbano Diaz
Summary: In this study, a one-pot synthesis method was presented to generate functionalized organosilica nanoparticles for the synthesis of multi-functional hybrid catalysts. Various organic functional elements were covalently incorporated onto the surface of the nanoparticles, allowing for the generation of hybrid spherical nanoparticles with tunable acidic, basic, and amphiphilic properties. The physico-chemical properties of the hybrid materials were fully characterized, and the potential uses of these materials as catalysts for biomass conversion were evaluated.
Article
Chemistry, Physical
Irina Delidovich
Summary: This Perspective discusses recent advances in the isomerization of aldoses into ketoses catalyzed by bases. It provides an overview of the reaction mechanism, kinetics, and products obtained via base-catalyzed transformations. The use of soluble metal hydroxides and general bases as catalysts, as well as the influence of organic solvents and the salt effect, are also addressed. The application of solid bases for isomerization and the impact of leached species on catalysis are critically discussed.
Article
Materials Science, Multidisciplinary
Jian Xu, Yuan Shu, Qian Xia, Yang-Long Guo, Guo-Jun Zhou, Wang-Cheng Zhan
Summary: Recent studies have shown that manipulating the adsorption of oleylamine on nanoparticle surfaces can control particle interactions and enhance aggregative growth processes. This leads to faster nucleation rates and higher uniformity of nanoparticles in a shorter time period. Additionally, Ag nanoparticles supported on TiO(2) have demonstrated remarkable catalytic performance in the reduction of 4-nitrophenol.
Article
Materials Science, Multidisciplinary
Xin Guo, Xue-Quan Sun, Yun Guo, Yang-Long Guo, Yun-Song Wang, Li Wang, Wang-Cheng Zhan
Summary: Au-Cu bimetallic nanoparticles were synthesized using wet chemistry method and supported on SiO2 to prepare the catalyst for selective oxidation of propene to acrolein. The bimetallic catalyst showed significantly enhanced catalytic performance compared to monometallic Au and Cu catalysts. The presence of CuO can promote the adsorption of O-2 and the electron transfer from Au to Cu facilitates the adsorptions of oxygen and propene, resulting in high catalytic activity.
Article
Chemistry, Physical
Hao Liu, Xian Li, Qiguang Dai, Hailin Zhao, Guangtao Chai, Yanglong Guo, Yun Guo, Li Wang, Wangcheng Zhan
Summary: The reducibility and surface acidity of Mn-Ti composite oxides were controlled by adjusting the Mn/Ti molar ratio, impacting their catalytic activity for the deep oxidation of vinyl chloride. It was found that the catalyst surface acidity played a decisive role in the oxidation process, while Lewis acidic sites from Ti species also influenced the catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Qiguang Dai, Kai Shen, Wei Deng, Yuanpu Cai, Jiaorong Yan, Jinyan Wu, Limin Guo, Rui Liu, Xingyi Wang, Wangcheng Zhan
Summary: Bulk metal doping and surface phosphate modification synergistically enhance the catalytic performance of CeO2 catalysts for the oxidation of Cl-VOCs, suppressing the formation of polychlorinated byproducts and improving surface structural stability.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Hailin Zhao, Bingjing Tang, Jie Tang, Yafeng Cai, Yao Cui, Hao Liu, Li Wang, Yunsong Wang, Wangcheng Zhan, Yanglong Guo, Yun Guo
Summary: It was found that depositing Pt on Na+ ion-exchanged ZSM-5 can enhance the catalytic efficiency of Pt/Na-ZSM-5 catalyst for formaldehyde oxidation, and tuning the surface acidity/basicity and noble metal state can reduce the usage of noble metal.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Physical
Guangtao Chai, Sineng Pan, Yanglong Guo, Wangcheng Zhan, Li Wang, Yun Guo, Haifeng Wang
Summary: Co3O4 has been widely studied as a catalyst for the oxidation of chlorinated volatile organic compounds due to its excellent oxidative ability. This study used first-principles calculations to explore the catalytic oxidation process of vinyl chloride on different surfaces of Co3O4. The results show that oxygen vacancy and adjacent Co-5c sites play important roles in the cleavage of the C-Cl bond on Co3O4(110) and Co3O4(001) surfaces, respectively. The identification of the rate-determining step in VC oxidation and the preference for HCl as the chlorine-containing product provide insights for improving the performance of Co3O4 catalysts in CVOC oxidation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Shuangshuang Zhang, Linlin Tang, Jun Yu, Wangcheng Zhan, Li Wang, Yun Guo, Yanglong Guo
Summary: Using nanosheet-assembled Al2O3 as support for Ni nanoparticles, the catalyst shows superior long-term stability and coking resistance in the dry reforming of methane reaction. The active Ni species are aggregated into Ni nanoparticles, stabilized by the hierarchical hollow microspheres of the support. The catalyst's excellent performance is attributed to the formation of spherical Ni nanoparticles, superior CO2 adsorption ability, and more surface hydroxyl groups on the support.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Kai Shen, Biao Gao, Hangqi Xia, Wei Deng, Jiaorong Yan, Xiaohan Guo, Yanglong Guo, Xingyi Wang, Wangcheng Zhan, Qiguang Dai
Summary: In this study, a Ru/Pi-CeO2 catalyst was designed to enhance the catalytic oxidation of chlorinated volatile organic compounds (Cl-VOCs) and inhibit the formation of more toxic polychlorinated byproducts. The doping of oxy-anionic salts was found to suppress the production of polychlorinated byproducts, leading to improved activity and durability for DCM oxidation. This research provides valuable insights into the inhibition of polychlorinated byproducts and the development of monolithic catalysts with superior resistance to chlorine poisoning.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yaxi Sun, Fan Ye, Jiajia Ding, Jinxia Li, Yun Guo, Li Wang, Yanglong Guo, Sheng Dai, Wangcheng Zhan
Summary: The study focuses on developing a highly efficient Ru-CeO2 catalyst for propane oxidation by adjusting the Ru loading to achieve a better balance between RuOx species in the CeO2 bulk and on the surface. By improving the distribution of active sites and increasing oxygen vacancies, the Ru-CeO2 catalyst shows enhanced catalytic activity and durability, making it a promising candidate for industrial applications.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Zhenpeng Huang, Shiying Cao, Jihang Yu, Xuan Tang, Yanglong Guo, Yun Guo, Li Wang, Sheng Dai, Wangcheng Zhan
Summary: This study demonstrates that phosphorus modification can enhance the catalytic performance of Pt/CeO2 catalyst in the total oxidation of light alkane by modulating its acidity and redox property. Phosphorus modification increases the acidity and the ability of the catalyst to activate C-H bond, while partially restoring its redox property.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Shi-Ying Cao, Fan Ye, Ni-Ni Zhang, Yang-Long Guo, Yun Guo, Li Wang, Sheng Dai, Wang-Cheng Zhan
Summary: This study demonstrates the successful design of a bimetallic Ru-Pt catalyst for methane oxidation, which exhibits excellent stability and outstanding performance. The RuO2 species provides additional oxygen species to facilitate the redox cycle of the PtOx species, enhancing the catalyst's activity.
Article
Nanoscience & Nanotechnology
Chuntao Shao, Jie Yang, Yang You, Xuan Tang, Jie Tang, Li Wang, Yao Cui, Wangcheng Zhan, Yanglong Guo, Yun Guo
Summary: This study reports the promoting effects of doped WOx on Pt/ZrO2 catalysts for propane oxidation. It is found that doped WOx can be highly dispersed on t-ZrO2 and form a nanolayer structure. This structure produces additional strong acid sites and metallic Pt sites, which facilitate the propane oxidation reaction. The results highlight the design of efficient Pt/ZrO2 catalysts for the removal of VOCs by changing the crystal structure of the ZrO2 support.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Zhenpeng Huang, Jiajia Ding, Xinwei Yang, Hao Liu, Peiyao Song, Yanglong Guo, Yun Guo, Li Wang, Wangcheng Zhan
Summary: This study demonstrates that the Pt catalyst supported on Nb2O5 exhibits efficient catalytic activity in propane oxidation, surpassing most catalysts reported in the literature. The Pt/Nb2O5 catalyst maintains excellent activity and durability even under harsh working conditions, making it a promising catalyst for the catalytic oxidation of alkanes from industrial sources.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Nini Zhang, Xiangmei Li, Yanglong Guo, Yun Guo, Qiguang Dai, Li Wang, Wangcheng Zhan
Summary: Crystal engineering of metal oxide supports is a new strategy to enhance the catalytic performance of noble metal catalysts in catalytic oxidation of CVOCs. Pt catalysts on different crystal phases of TiO2 exhibited varying activity, selectivity, and stability in the oxidation of DCE, with the Pt/TiO2-P catalyst showing optimal performance. The strong interaction between Pt and P25-TiO2, as well as the presence of abundant hydroxyl groups, contributed to the stability and high activity of the Pt/TiO2-P catalyst.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xuan Tang, Ming Wang, Bingjing Tang, Yunkun Zhao, Wangcheng Zhan, Yanglong Guo, Li Wang, Sheng Dai, Yun Guo
Summary: Realizing the potential benefits of nanoscale metal catalysts requires controlling their local environment and achieving highly dispersed active sites. In this study, we developed a catalyst synthesis route that targets the deposition of Pd near highly dispersed ZrOx on ZSM-5 zeolite using electrostatic interactions. The heteroatom Pd-ZrOx species formed in the zeolite catalysts were characterized by various techniques, revealing higher dispersion and lower oxygen coordination of Pd species, which enhanced the catalytic performance with a lower temperature for CH4 conversion. Our work provides a strategy to engineer highly dispersed noble metal species and regulate the local environment for tuning catalytic properties.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
