Article
Chemistry, Physical
Jiahui Huang, Junhong Fu, Jiarui Zhao, Jian Wang, Kaixin Tang, Qi Liu
Summary: The Pd/TiO2 catalysts with different Pd nanoparticle sizes were used to study the selectivity control of hydrogenation of 3-nitrostyrene (3-NS). It was found that decreasing particle size increased the selectivity of 3-vinylanilline (3-VA) and decreased the selectivity of 3-ethylnitrobenzene (3-EN). However, for Pd/SiO2 catalysts, the selectivity of 3-EN was dominant regardless of particle size. The study also showed that the electronic interactions between Pd nanoparticles and TiO2 support increased with decreasing particle size, leading to enhanced selectivity of 3-VA. Strong metal-support interactions induced at elevated temperatures did not significantly affect the selectivities of 3-VA and 3-EN. Pd nanoparticles supported on SiO2 without electronic metal-support interactions preferred the reduction of the vinyl group of 3-NS. This research emphasizes the importance of electronic metal-support interactions in governing the selectivity for hydrogenation of unsaturated nitroarene reactions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Siyu Long, Lingyu Zhang, Zhuoyue Liu, Huibin Jiao, Aiwen Lei, Wei Gong, Xianglin Pei
Summary: In this study, a bimetallic Pt-Ni/Chitin catalyst was prepared using renewable biomass resource chitin as support. The catalyst exhibited efficient and selective hydrogenation ability with good stability. This utilization of biomass resources to build catalyst materials is of great importance for green and sustainable chemistry.
Article
Chemistry, Multidisciplinary
Lingling Zhang, Jing Pan, Li Liu, Shuaishuai Zhang, Xiao Wang, Shuyan Song, Hongjie Zhang
Summary: The incorporation of transition metals with noble metals into nanoalloys allows for modulation of electronic structures and spatial arrangements to manipulate target catalytic reactions. A highly efficient synthesis of IrCo nanoalloys at low temperatures has been reported, breaking through thermodynamic limitations and enabling a high-performance selective hydrogenation system using light irradiation.
Article
Chemistry, Multidisciplinary
Feifan Chen, Haohui Feng, Changsheng Feng, Feiyue Ge, Lijun Hu, Yue Chen, Han Zhang, Fang Cheng, Xue-Jun Wu
Summary: The body-centered tetragonal I-Cu2WS4 nanosheets and primitive tetragonal P-Cu2WS4 nanoflowers are successfully prepared as highly efficient photocatalysts for the selective hydrogenation of 3-nitrostyrene, producing 3-vinylaniline and 3-ethylnitrobenzene, respectively, with high selectivity and conversion, by selectively activating the nitro group (NO2) and carbon-carbon (CC) double bond.
Article
Chemistry, Multidisciplinary
Ying Zhang, Tongtong Gao, Chengshan Dai, Liyun Zhang, Yiming Niu, Junnan Chen, Zhong-Wen Liu, Bingsen Zhang
Summary: Selective hydrogenation of substituted nitroarenes to obtain amines is an important reaction. In this study, a series of iron compounds supported Pt catalysts were synthesized by immobilizing Pt nanoparticles (NPs) on FeOOH, Fe3O4, and alpha-Fe2O3 nanorods using a liquid phase reduction method. The performance of the catalysts was evaluated using the chemoselective hydrogenation of 3-nitrostyrene to 3-aminostyrene as a probe reaction. The results showed that Pt/FeOOH exhibited the highest selectivity and activity. The presence of pores and -OH groups in the FeOOH support could tune the electronic structure of Pt NPs, and the positive charge of Pt NPs on FeOOH was identified as a key factor for improving the catalytic performance.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Peicai Li, Xia Liu, Mingrui Guo, Yecan Pi, Ning Wang, Shuxing Bai, Yong Xu, Qi Sun
Summary: Phase engineering plays a crucial role in regulating catalytic performance, and understanding the structure-selectivity correlation remains a challenge. This study demonstrates that the body-centered cubic phase of PdCu is a highly active and selective catalyst for 3-nitrostyrene (NS) hydrogenation under mild conditions. The presence of NH3 center dot BH3 assists in the selective hydrogenation of -NO2, leading to the formation of 3-amino-styrene (AS).
Article
Chemistry, Physical
Ran Tao, Bing-Qian Shan, Hao-Di Sun, Meng Ding, Qing-Song Xue, Jin-Gang Jiang, Peng Wu, Kun Zhang
Summary: The study used platinum-covered titanium oxide as a catalyst and reconstructed surface states to control the synthesis selectivity of unsaturated alcohols and aldehydes in hydrogenation reactions, achieving high selectivity.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Lu-Jie Zuo, Kun-Ze Xue, Shi-Long Xu, Yuan Kong, Hai-Wei Liang
Summary: This study reports the synthesis of structurally ordered Rh3Sn2 intermetallic catalysts, which exhibited a high selectivity of 95.1% in the hydrogenation of 4-nitrostyrene to 4-aminostyrene. Density functional theory calculations reveal that the addition of Sn atom significantly improves the adsorption of nitrostyrene through the nitro group on the Rh3Sn2 (110) surface. Moreover, a significant electronic effect is formed between Rh and Sn through charge transfer, making the Rh3Sn2 intermetallic compound more favorable for the hydrogenation of the nitro group.
Article
Chemistry, Physical
Yuemin Lin, Renfeng Nie, Yuting Li, Xun Wu, Jiaqi Yu, Shaohua Xie, Yajing Shen, Shanjun Mao, Yuzhuo Chen, Dan Lu, Zongbi Bao, Qiwei Yang, Qilong Ren, Yiwen Yang, Fudong Liu, Long Qi, Wenyu Huang, Zhiguo Zhang
Summary: We report a novel non-precious metal catalyst consisting of single-atom cobalt for the selective reduction of functionalized nitroarenes to amines. The catalyst exhibits high catalytic activity, resistance to poisoning, and corrosion, showing great potential for applications in the chemical industry.
Article
Chemistry, Multidisciplinary
Chengshan Dai, Ying Zhang, Junnan Chen, Xia Zhong, Liyun Zhang, Bingsen Zhang
Summary: This study investigates the effect of support morphology on the catalytic performance of selective hydrogenation reactions. The results show that the properties of metal nanoparticles can be modified by the nature of the support, leading to improved catalytic activity and stability.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Khaled M. Chahrour, Poh Choon Ooi, A. M. Eid, Ahmed Abdel Nazeer, Metwally Madkour, Chang Fu Dee, M. F. Mohd Razip Wee, Azrul Azlan Hamzah
Summary: The introduction of crystalline phase change and Ti3+ self-doping improved the electronic conductivity and photoelectrochemical activity of anodic TiO2 nanotubes, enhancing the detection efficiency and selectivity of photoelectrochemical sensors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Changhui Liang, Huixiang Li, Mao Peng, Xiaoqiang Zhang, Qike Jiang, Jin Cui, Yunjie Ding, Z. Conrad Zhang
Summary: This study demonstrates the outstanding activity, selectivity, and stability of supported bimetallic PtCo nanoparticles in the hydrogenation of furfural to furfuryl alcohol. The np-PtCo/TiO2 catalyst exhibits high FOL selectivity and TOF values at low Pt loading. Moreover, the oxyphilic Co delta+ in the PtCo nanoparticles induces highly polarized -C--O bond.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Multidisciplinary
Hu Liu, Xuexiang Li, Zhenhui Ma, Mingzi Sun, Menggang Li, Zhenyu Zhang, Liang Zhang, Zuobin Tang, Yao Yao, Bolong Huang, Shaojun Guo
Summary: The researchers have developed a new strategy to incorporate single atom Cu sites into melem ring, resulting in Cu-1/CN catalyst with high selectivity, activity, and stability for selective hydrogenation of 4-nitrostyrene. The presence of hydroxymethyl from trimethylolmelamine is found to be beneficial for atomically dispersing Cu atoms in CN, contributing to the optimal chemical environment for efficient hydrogenation reaction. X-ray absorption fine structure tests indicate that the Cu atom of Cu-1/CN is dominated by quaternary coordination way in the melem ring of CN.
Article
Chemistry, Physical
Xixiong Zhang, Wen Shi, Yong Li, Wenning Zhao, Shaobo Han, Wenjie Shen
Summary: The strong metal-support interaction was observed over Pt/TiO2 catalysts with size-specified Pt colloids on anatase TiO2 nanosheets dominated by reactive {001} facets, resulting in the formation of Pt3Ti intermetallic alloys. The size of Pt particles also showed a dependency, with bulk Pt-Ti alloys formed on 2 nm particles and Pt3Ti intermetallic alloys observed on 4-6 nm particles. Both types of alloys suppressed chemisorption of H-2 and CO, but promoted the selectivity for hydrogenating the C=O bond in acetophenone.
Article
Nanoscience & Nanotechnology
Kaijia Li, Ruixuan Qin, Kunlong Liu, Wenting Zhou, Ning Liu, Yazhou Zhang, Shengjie Liu, Jie Chen, Gang Fu, Nanfeng Zheng
Summary: Treating Pt-based catalysts with CO at elevated temperature promotes the deposition of carbon species on the Pt surface, which inhibits dehalogenation reactions and enhances the hydrogenation activity of nitro groups. This treatment strategy effectively fabricates Pt-based catalysts on different supports for selective hydrogenation of a wide range of halogenated nitroaromatics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Xiaoru Li, Qifan Wu, Bin Zhang, Chao Zhang, Weiwei Lin, Haiyang Cheng, Fengyu Zhao
Article
Chemistry, Multidisciplinary
Bin Zhang, Bin Chen, Mark Douthwaite, Qiang Liu, Chao Zhang, Qifan Wu, Ruhui Shi, Peixuan Wu, Fengyu Zhao, Graham Hutchings
Article
Chemistry, Physical
Qifan Wu, Bin Zhang, Chao Zhang, Xiangchun Meng, Xinluona Su, Shan Jiang, Ruhui Shi, Yan Li, Weiwei Lin, Masahiko Arai, Haiyang Cheng, Fengyu Zhao
JOURNAL OF CATALYSIS
(2018)
Article
Physics, Applied
Wen-Qi Wei, Jian-Huan Wang, Bin Zhang, Jie-Yin Zhang, Hai-Ling Wang, Qi Feng, Hong-Xing Xu, Ting Wang, Jian-Jun Zhang
APPLIED PHYSICS LETTERS
(2018)
Article
Physics, Applied
Qi Feng, Hui Cong, Bin Zhang, Wenqi Wei, Yueyin Liang, Shaobo Fang, Ting Wang, Jianjun Zhang
APPLIED PHYSICS LETTERS
(2019)
Article
Nanoscience & Nanotechnology
Bin Zhang, Wen-Qi Wei, Jian-Huan Wang, Hai-Ling Wang, Zhuang Zhao, Lei Liu, Hui Cong, Qi Feng, Huiyun Liu, Ting Wang, Jian-Jun Zhang
Article
Optics
Bin Zhang, Wen-Qi Wei, Jian-Huan Wang, Jie-Yin Zhang, Hui Cong, Qi Feng, Ting Wang, Jian-Jun Zhang
Article
Chemistry, Physical
Qifan Wu, Chao Zhang, Masahiko Arai, Bin Zhang, Ruhui Shi, Peixuan Wu, Zhuangqing Wang, Qiang Liu, Ke Liu, Weiwei Lin, Haiyang Cheng, Fengyu Zhao
Article
Chemistry, Inorganic & Nuclear
Bin Zhang, Yan Zhang, Guangcai Chang, Zheming Wang, Daoben Zhu
Summary: Crystal-to-crystal transformation is a method to obtain crystals with different structures and properties, where K-2[Co(C2O4)(2)(H2O)(2)]·4H2O (1) can transform into K-2[Co(μ-C2O4)(C2O4)] (2) through dehydration. While 1 is an antiferromagnetic molecular crystal, 2 exhibits antiferromagnetic ordering at 8.2 K.
Article
Chemistry, Multidisciplinary
Bin Zhang, Wei Zhou, Jie Zhang, Zirui Gao, Danyang Cheng, Lipeng Tang, Xingwu Liu, Yueqin Song, Chunyang Dong, Yao Xu, Jie Yan, Mi Peng, Huizhen Liu, Mark Douthwaite, Meng Wang, Ding Ma
Summary: Isomerization of paraffins remains a challenge, but mesoporous tungsten-zirconia supported Pt catalysts showed improved initial productivity. Close proximity between Pt and WOx species plays a significant role in isomerization, while acid density and metallicity affect the triggering of isomerization and activation of C-H bonds.
Article
Chemistry, Analytical
Ying Qu, Bin Zhang, Hairong Chu, Xiaoxia Yang, Honghai Shen, Jingzhong Zhang
Summary: This paper proposes a linear-nonlinear switching active disturbance rejection control strategy based on linear-nonlinear switching extended state observer and linear-nonlinear switching state error feedback control law to improve the contradiction between response speed and control precision in nonlinear active disturbance rejection control caused by the limitation of parameter alpha. The proposed strategy is applied to a permanent magnet synchronous motor experimental platform, and the results demonstrate that it can balance response speed and control precision effectively and has strong disturbance rejection capability.
Article
Optics
Guo Pengfei, Li Yuxia, Li Jianfeng, Zhang Bin, Wu Xiaoxia
ACTA OPTICA SINICA
(2020)
Article
Chemistry, Multidisciplinary
Bin Zhang, Mark Douthwaite, Qiang Liu, Chao Zhang, Qifan Wu, Ruhui Shi, Peixuan Wu, Ke Liu, Zhuangqing Wang, Weiwei Lin, Haiyang Cheng, Ding Ma, Fengyu Zhao, Graham J. Hutchings
Proceedings Paper
Engineering, Electrical & Electronic
Bin Zhang, Wen-Qi Wei, Jian-jun Zhang, Ting Wang
2019 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2019)
Review
Chemistry, Multidisciplinary
Qi Feng, Wenqi Wei, Bin Zhang, Hailing Wang, Jianhuan Wang, Hui Cong, Ting Wang, Jianjun Zhang
APPLIED SCIENCES-BASEL
(2019)
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)
