Article
Chemistry, Multidisciplinary
Priyanka Pal, Shunmugavel Saravanamurugan
Summary: The present study focuses on the development of a stable basic MnOx support for the efficient oxidation of HMF to FDCA in water without the need for an external base. The RuMn-2 catalyst, with a high number of basic sites and a high dispersion of Ru on the surface of MnOx, showed excellent performance in the oxidation reaction. The epsilon-MnO2 phase in the catalyst played a vital role in the reaction.
Article
Chemistry, Multidisciplinary
Xiaobin Zuo, Padmesh Venkitasubramanian, Kevin J. Martin, Bala Subramaniam
Summary: In this study, FDCA was successfully produced by oxidizing crude HMF solution, with a yield of over 95%. By using Co/Mn/Br catalyst and optimizing reaction conditions, the crude solution containing high concentration of HMF was converted to FDCA, while unwanted byproducts were also transformed into FDCA. This method provides potential for cost-effective FDCA production in existing terephthalic plants.
Article
Nanoscience & Nanotechnology
Xuemin Zhong, Peng Yuan, Yanfu Wei, Dong Liu, Dusan Losic, Mengyuan Li
Summary: A highly efficient and stable halloysite-supported Pt-Au alloy catalyst was developed for the selective oxidation of HMF to FDCA, exhibiting outstanding catalytic activity and selectivity. The catalyst showed high stability and reusability, providing a promising strategy for developing efficient catalysts with high selectivity and stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Mengmeng Jin, Linhao Yu, Hong Chen, Xueli Ma, Kai Cui, Zhe Wen, Zewei Ma, Yushuai Sang, Mengmeng Chen, Yongdan Li
Summary: Different molar ratios of Co/Ce in Ce oxide-based catalysts significantly affect the oxidation of 5-HMF to FDCA, with the CoCe-0.15 catalyst showing high activity and selectivity at 130 degrees C. The reaction mechanism involves Mars-van Krevelen mechanism with redox of Ce4+/Ce3+ and Co3+/Co2+ for lattice oxygen replenishment.
Review
Chemistry, Multidisciplinary
Weijie Zhang, Hengli Qian, Qidong Hou, Meiting Ju
Summary: In order to reduce oil consumption, biomass energy is being developed to produce petroleum derivatives. The thermal-catalytic oxidation of 5-hydroxymethyl furfural (HMF) into 2,5-furandicarboxaldehyde (DFF) has been identified as an effective strategy for synthesizing valuable petroleum derivatives. This review provides a summary of the common methods for promoting HMF conversion and selectivity of DFF, including modification techniques for catalysts and current challenges. The review also introduces the basic reaction pathways and solvent systems relevant to the synthesis process.
Article
Engineering, Environmental
Yunlei Zhang, Yu Cao, Changhao Yan, Wenyun Liu, Yao Chen, Wen Guan, Fang Wang, Yiran Liu, Pengwei Huo
Summary: The synthesis of ZrO2 coated on halloysite nanotubes (HNTs) and the engineering of Au-ZrOx interface active sites are key in boosting the production of 2,5-furandicarboxylic acid (FDCA) from bioderived 5-hydroxymethylfurfural (HMF). Oxygen vacancies (Ov) play a vital role in enhancing O2 adsorption and the activation of oxygen molecules, while interface active sites facilitate the chemisorption and activation of O2 molecules, thus leading to the production of superoxide radicals. The proposed model of interface active sites can guide the design of novel heterogeneous catalysts for biomass oxidation reactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xue Wang, Xinyuan Guo, Xinmei Wang, Chi Li, Shanjun Wang, Han Li, Yan'an Gao, Yiying Li, Jinhui Wang, Huanjun Xu
Summary: A simple and metal-free catalytic system of (NaOBu)-Bu-t/DMF and an O-2 balloon efficiently converts 5-hydroxymethylfurfural (5-HMF) to furan-2,5-dicarboxylic acid with an 80.85% yield. This catalytic system also transforms 5-HMF analogues and various types of alcohols to their corresponding acids in satisfactory to excellent yield.
Article
Engineering, Environmental
Kasanneni Tirumala Venkateswara Rao, Yulin Hu, Zhongshun Yuan, Yongsheng Zhang, Chunbao (Charles) Xu
Summary: The team successfully synthesized an inexpensive nitrogen-doped carbon material and applied it in the oxidation reaction of converting 5-HMF into FDCA, achieving good conversion and yield rates, making significant progress in the field of biomass conversion.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Aiyong He, Liangliang Dong, Ning Xu, Soliman I. El-Hout, Jun Xia, Zhongyang Qiu, Jianlong He, Yuanfang Deng, Xiaoyan Liu, Lei Hu, Jiaxing Xu
Summary: FDCA is a platform chemical used to produce sustainable PEF, and this study developed a catalyst that enables the efficient oxidation of HMF to FDCA. The catalyst, a hybrid of HP-7 and AAO, showed self-activation and high efficiency in the oxidation process, resulting in complete conversion of HMF with excellent selectivity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Applied
Chunlin Chen, Lingchen Wang, Bin Zhu, Zhenqiang Zhou, Soliman El-Hout, Jie Yang, Jian Zhang
Summary: The conversion of biomass into value-added chemicals, particularly using 5-hydroxymethylfurfural as a key platform molecule, has garnered significant attention. The oxidation product 2,5-furandicarboxylic acid shows promise as an alternative to petroleum-based terephthalic acid for the synthesis of biodegradable plastics.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Weizhen Xie, Huai Liu, Xing Tang, Xianhai Zeng, Yong Sun, Xixian Ke, Tianyuan Li, Huayu Fang, Lu Lin
Summary: The study demonstrates the efficient conversion of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) at high concentration using a two-step cascade reaction. The stability of HMF in 1,4-dioxane/H2O with a weak alkaline environment and the enhancement of superoxide radicals play crucial roles in achieving high FDCA yield.
APPLIED CATALYSIS A-GENERAL
(2022)
Review
Chemistry, Organic
Chiliu Cai, Haiyong Wang, Haosheng Xin, Changhui Zhu, Chenguang Wang, Qi Zhang, Qiying Liu, Longlong Ma
Summary: Biomass conversion into fine chemicals and high value-added fuels is crucial for addressing energy scarcity and environmental pollution. FDCA, as a promising bio-based monomer, has wide applications and has attracted researchers' attention. Significant progress has been made in the research on producing FDCA from HMF, with various efforts on different metal catalysts.
CURRENT ORGANIC CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Grazia Totaro, Laura Sisti, Paola Marchese, Martino Colonna, Angela Romano, Claudio Gioia, Micaela Vannini, Annamaria Celli
Summary: This review provides an up-to-date overview of the main synthetic pathways to obtain FDCA from HMF, with a specific focus on process sustainability.
Article
Chemistry, Multidisciplinary
Yani Peng, Boya Qiu, Shengzhe Ding, Min Hu, Yuxin Zhang, Yilai Jiao, Xiaolei Fan, Christopher M. A. Parlett
Summary: This study presents the development of a simple synthesis method for preparing bimetallic AuPd alloy catalysts for selective oxidation of 5-HMF to FDCA. Under strong base conditions, the cooperation of Pd and Au promotes FDCA formation but also leads to the formation of undesired by-products. Under weak base conditions, increasing the Au loading enhances FDCA productivity and mass balances.
Article
Engineering, Environmental
Guangqiang Lv, Zonghang Zhang, Shan Liu, Furong Tao, Jingui Wang, Yu Meng, Yongxing Yang
Summary: In this study, Pd, Au dual single-atom catalysts and PdAu nanoalloy catalyst were prepared and compared for their catalytic activity in aerobic oxidation reactions. The results showed that the PdAu nanoalloy catalyst exhibited excellent catalytic activity, while the Pd, Au dual single-atom catalysts had lower activity. This study emphasizes the significance of coordination atom type and quantity in catalyst synthesis on their catalytic performance, and provides insights for future rational design of Pd and Au-based single-atom catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xiaotong Wang, Zhibin Li, Feifei Gong, Mingming Ma, Yujun Zhu
Summary: Low acidity SAPO-34 was synthesized by using seeding SAPO-34 as Si source, resulting in lower Si content and acidity, and demonstrating good catalytic performance and light olefins selectivity in methanol to olefins process. Manipulating Si distribution through recrystallization of seeding SAPO-34 can further improve catalytic performance.
MOLECULAR CATALYSIS
(2021)
Article
Nanoscience & Nanotechnology
Mingyang Li, Cheng Zhang, Liman Fan, Yongfu Lian, Xiaoyu Niu, Yujun Zhu
Summary: Coral-like lanthanum manganese oxides with hierarchical structure nanosphere were successfully prepared, showing high-efficiency catalytic performance for toluene combustion. La0.08MnOx exhibited superior catalytic activity, with La doping inducing changes in physicochemical properties and facilitating the formation of oxygen species and high valence state amorphous manganese oxides.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Zhiping Zhang, Rumin Li, Mengjie Wang, Yushi Li, Yongming Tong, Piaoping Yang, Yujun Zhu
Summary: CeTiOx-T with nanotube structure exhibits excellent catalytic activity, SO2 and H2O tolerance, and stability in NH3-SCR reaction. The strong interaction between Ce and Ti leads to short-range ordered Ce-O-Ti species, resulting in a larger BET surface area and higher NH3-SCR performance than traditional catalysts. In situ DRIFTS results suggest different reaction mechanisms at low and high temperatures over CeTiOx-T.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Ahmed Ismail, Mingyang Li, Muhammad Zahid, Liman Fan, Cheng Zhang, Zhibin Li, Yujun Zhu
Summary: A series of CoxCe1-xO2-8 oxides were synthesized and applied for catalytic toluene oxidation, with Co0.2Ce0.8O2-8 exhibiting the best catalytic activity and maintaining stable activity in three successive tests. The strong interaction between Co and Ce oxides was found to play a key role in enhancing catalytic performance by forming a solid solution, leading to abundant active oxygen species on the surface.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Wang Sun, Lin Luo, Jiang Li, Xiqiang Tian, Dong Yan, Yujun Zhu
Summary: The Pt/(Fe, Mn/Co)-BTC catalysts exhibited excellent performance in selective hydrogenation of furfural to furfuryl alcohol, with Pt/(Fe, Co)-BTC showing higher turnover frequency and better cycle stability attributed to the highly dispersed small Pt nanoparticles present on the catalysts.
Article
Chemistry, Applied
Chen Zhao, Yushi Li, Zhiping Zhang, Huansheng Tan, Fulong Yuan, Yujun Zhu
Summary: The study found that hexagonal cerium phosphate (CePO4-H) exhibited better catalytic activity compared to monoclinic cerium phosphate and mixed phases, with superior stability and surface acidity, leading to significantly improved SCR activity.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Physical
Shan Wang, Junjiang Zhu, Sonia A. C. Carabineiro, Ping Xiao, Yujun Zhu
Summary: Porous LaCoO3 perovskite prepared by selective etching method exhibits high catalytic activity, improving reaction efficiency and stability. The research results are of great significance for exploring new efficient catalysts.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Biotechnology & Applied Microbiology
Cheng Zhang, Mingyang Li, Xiaotong Wang, Liman Fan, Yongli Dong, Yujun Zhu
Summary: The study focused on the preparation of core-shell Mn2O3@MnO2 structure through controlling the calcination temperature, showing excellent catalytic activity and stability in toluene oxidation reaction. Characterization techniques were applied to analyze the relationship between structure and properties, revealing the importance of surface Mn and oxygen species in enhancing catalytic performance.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Wanlu Zhang, Mingyang Li, Xiaotong Wang, Xuewei Zhang, Xiaoyu Niu, Yujun Zhu
Summary: In this study, spherical Mn-doped Co3O4 spinet catalysts were successfully prepared and showed optimal catalytic activity and stability for toluene combustion. The catalysts exhibited increased amounts of surface Co2+, Mn(4+) and lattice oxygen, leading to enhanced oxidation ability. The formation of surface Mn-O-Co bonds improved the mobility of surface oxygen. In addition, the catalytic combustion followed the Mars-van Krevelen mechanism and surface lattice oxygen played a crucial role in the cycle of oxygen species.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Rui Li, Xiangqiong Jiang, Jiecheng Lin, Zhiping Zhang, Qintong Huang, Guangying Fu, Yujun Zhu, Jiuxing Jiang
Summary: SSZ-16 zeolite with AFX topology was synthesized and exchanged with Cu to form Cu-x-SSZ-16 catalyst for NH3 selective catalytic reduction of NOx. The Cu-2.2-SSZ-16 catalyst showed good activity even after hydrothermal aging, indicating its potential for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Lele Zhao, Jiaming Zhang, Zhiping Zhang, Tong Wei, Yujun Zhu, Jun Ma
Summary: In this study, the effects of CuO crystal planes on the properties of the Cu/PMS coupling system were investigated. CuO-10, with Cu atoms exposed on the (001) plane, was synthesized and found to have excellent catalytic performance in degrading BPA. Its reaction rate constant was 14 times higher than that of commercial CuO with O atoms exposed on the (010) plane. CuO-10 also exhibited a wide pH range adaptability and produced fewer radicals compared to CuO-C in the PMS oxidation system. The CuO/PMS system was shown to oxidize organic contaminants through an oxygen-atom-transfer mechanism, making it easier to degrade organic pollutants compared to the UV/PMS system.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Ahmed Ismail, Muhammad Zahid, Boren Hu, Adnan Khan, Nauman Ali, Yujun Zhu
Summary: Catalytic oxidation of volatile organic compounds is an effective method for air pollution control. CeO2 catalysts with different morphologies, particularly CeO2 (S) with higher surface area and oxygen vacancies, exhibit excellent catalytic performance in toluene oxidation.
Editorial Material
Chemistry, Physical
Hongxing Dai, Xiang Wang, Yujun Zhu, Haibao Huang, Yunkun Zhao
Article
Chemistry, Physical
Xiaotong Wang, Yanling Sun, Mingyang Li, Wanlu Zhang, Yujun Zhu
Summary: In this study, OMS-2 was modified by adding different amounts of K via a hydrothermal process to obtain samples with unique hierarchical porous structures. The results showed that the sample with an appropriate amount of K exhibited the best catalytic oxidation performance on toluene and benzene, surpassing the conventional OMS-2.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Haojie Li, Bingke Yang, Zhen Yao, Xuetao Wang, Kaiming Shen, Mengjie Liu
Summary: This study systematically investigates the influence of metal and nonmetal element doping on the photochemical properties of g-C3N4 for efficient catalytic AB hydrogen production. It provides a design method for high performance bifunctional catalysts of photocatalysis and metal catalysis. The results show that both non-metals (B, P) and metals (Ru, Ni) have efficient regulatory effects on the band structure of g-C3N4, resulting in a reduced band gap and improved hydrogen production. The study offers a theoretical method for the coupling of metal catalysis/photocatalysis ammonia borane to produce hydrogen.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Shrouq Mujahed, Davide Gandolfo, Luigi Vaccaro, Evgueni Kirillov, Dmitri Gelman
Summary: In this study, a high-valent Ru(IV) bifunctional catalyst was successfully applied for the hydrosilylation of various functional groups. The high-valent hydride complexes showed high chemoselectivity and affinity towards reducing polar bonds. The scope, limitations, and plausible mechanism of the reaction were described.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Yongzhen Peng, Kongchen Xia, Qi Wu
Summary: In this study, we report an engineered cyclohexanone monooxygenase that can be used for the asymmetric synthesis of chiral alpha-deuterated carbonyl compounds via enantioselective reductive dehalogenation. The engineered enzyme exhibits good chemoselectivity, stereoselectivity, and d-incorporation, making it a promising method for the synthesis of deuterated drugs.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Qi Yang, Ruixuan Xu, Hongqi Nie, Qilong Yan, Jun Liu, Jiuyu Chen, Yunlan Sun
Summary: The adsorption and decomposition processes of ammonium perchlorate (AP) on pure-Al and Al2O3/Al surfaces were investigated using density functional theory. The results showed that the pure-Al surface is more conducive to the decomposition of AP and the activation of NH3, while the Al2O3/Al surface promotes the disengagement of H and NH3 decomposition.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Yudong Hu, Guochao Xu, Ye Ni
Summary: This study identified a novel phenylalanine dehydrogenase (QtPDH) with high catalytic efficiency and thermal stability, making it a promising biocatalyst for industrial production of bulky aromatic primary amines. QtPDH exhibited a broader substrate specificity and significantly longer half-life compared to BbPDH.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Weiling Zhao, Zhiling Huang, Hui Shen, Xianglong Li, Shaofen Zhao, Bo Xie, Shengjie Xia
Summary: This study investigated the effects of metal doping and crystal plane selection on the CO2 adsorption properties of MgO using density functional theory (DFT) methods. The results showed that the appropriate crystal plane and metal doping can improve the adsorption properties of MgO on CO2. The influence of different crystal planes and metal dopants on CO2 adsorption properties varied significantly. The research provides some references for experimental studies on CO2 adsorption by MgO by combining the dual modification of crystal plane and doped metal.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Jie Zhang, Jinwei Chen, Zongbo Shi, Junyu Zhao, Runsheng Zhuo, Ruilin Wang
Summary: In this study, a double-layered silicalite-1 support with high specific surface area was synthesized, and a magnesium modification strategy was adopted to improve the catalytic activity and stability of the zinc-based catalyst. The modified catalyst showed enhanced propylene selectivity and anti-coking property.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Pei-Sen Gao, Chang-Wang Pan, Cheng Liu, Wen -Tong Chen
Summary: Asymmetric electrocatalysis offers a unique approach to obtain enantioenriched molecules that are difficult to obtain through conventional methods. This study developed a novel bifunctional electrocatalyst, enabling the oxidative kinetic resolution of chiral 1,4-diols and gamma-lactones. The work demonstrates the potential of bifunctional electrocatalysis for asymmetric synthetic methods and its importance in the development of novel electrocatalytic methods.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Qinzhe Lin, Xuanjin Lv, Xianming Zeng, Mengning Zhong, Qiyun Wu, Huilin Ren, Shenpeng Xu, Wentian Chen, Wenting Du, Jun Li
Summary: The catalytic efficiency of engineered IRED M5 was found to be relatively low when tasked with a bulky amine substrate. Rational design led to the mutants M203V and F260A, with F260A exhibiting a substantial improvement in conversion and stereoselectivity. The study revealed the potential molecular mechanisms underlying the effect of F260A and M203V on catalytic performance.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Zhishuai Wang, Fengyun Su, Hailong Cao, Mengzhen Tian, Xiang Li, Haiquan Xie, Xiaoli Jin, Zhengdao Li, Xin Ying Kong
Summary: In this study, the efficiency of photocatalytic CO2 reduction was significantly enhanced by incorporating nickel oxide onto niobium pentoxide. The resulting catalyst showed remarkable methane and carbon monoxide production improvements.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
A. Yu. Sidorenko, Yu. M. Kurban, T. V. Khalimonyuk, I. V. Il'ina, N. S. Li-Zhulanov, O. S. Patrusheva, V. V. Goltsova, M. P. Bei, Zh. V. Ihnatovich, J. Warna, K. P. Volcho, N. F. Salakhutdinov, D. Yu. Murzin, V. E. Agabekov
Summary: This study provides a comprehensive investigation into the catalytic condensation of renewable 3-carene with formaldehyde for the one-step preparation of terpenoid trans-4-hydroxymethyl-2-carene. Various acids and alumino-silicates were found to catalyze the reaction, but the selectivity to the desired product was limited. Phosphoric acid showed the highest selectivity, and an excess of formaldehyde or catalyst loading significantly increased the yield of the target product. Water presence also led to increased selectivity. Additionally, a detailed mechanism for the 3-carene condensation with formaldehyde was proposed and confirmed through kinetic modeling.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Meng-Yu Rong, Jing Nie, Shen Li, Jun-An Ma
Summary: We synthesized a new class of chiral quaternary ammonium salts and used them as catalysts in phase-transfer catalytic asymmetric alkylation. By employing these catalysts, we obtained a series of chiral fluorinated aromatic alpha-amino acid derivatives with high yields and enantioselectivities.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Zhaozhou Wei, Guangtao Wei, Huixian Che, Deyuan Xiong, Linye Zhang, Ruihua Xue, Yalin Tang, Xuanli Lu
Summary: This study demonstrates that small-sized graphite crystallite and highly defective carbon-based catalysts can increase the -SO3H density of the catalysts and modulate their surface electronic properties, leading to improved efficiency in the alpha-pinene hydration reaction. The reduction of graphite crystallite size is considered a critical step in enhancing the selectivity of alpha-terpineol.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Kempanna S. Kanakikodi, Nagendra Kulal, K. S. Subramanya, M. S. Puneethkumar, Bhavana B. Kulkarni, Ganapati Shanbhag, Sanjeev P. Maradur
Summary: An effective and highly selective protocol for synthesizing asymmetric organic carbonates using dimethyl carbonate (DMC) as a reactant and solvent has been developed. The performance of CeO2 nanostructures with different morphologies in the carbonate interchange reaction (CIR) of alcohols was investigated, and the CeO2 nano-catalyst with rod morphology exhibited the highest oxygen vacancy and remarkable enhancement in conversion. The CeO2 characterization data revealed that the exposed active sites, defect density, coordination state of surface atoms, and reducibility of the catalytic materials are the contributing factors to its high catalytic activity. CeO2 can be easily recovered and reused for multiple cycles.
MOLECULAR CATALYSIS
(2024)
Article
Chemistry, Physical
Yanzhao Gao, Xianglei Meng, Shiqi Huang, Hui Wu, Liantao Jiang, Yu Zhou, Yuting Song, Yanyan Diao
Summary: Gamma alumina modified with alkaline earth metal shows improved catalytic performance for hydrogenation reactions. Pd catalysts supported by Al2O3 and Mg-modified Al2O3 were synthesized and their structure, composition, and surface acidity were investigated. The results showed that Pd/MgO-Al2O3-2 catalyst exhibited the best catalytic performance due to its metallic state palladium and weak acid sites.
MOLECULAR CATALYSIS
(2024)
