Article
Biochemistry & Molecular Biology
Mengting Chen, Yun Wang, Limin Jiang, Yuran Cheng, Yingxin Liu, Zuojun Wei
Summary: In this study, a series of TiO2-supported CoRe bimetallic catalysts were developed for the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol. The optimized catalyst achieved a high selectivity of 89% and a conversion of 99% under mild conditions. The presence of ReOx on the catalyst surface enhanced the adsorption of C=O, and the ultrafine Co nanoparticles provided active sites for selective hydrogenation. Furthermore, the use of formic acid as a hydrogen donor improved the selectivity to alpha,beta-unsaturated alcohols.
Article
Chemistry, Physical
Narges Atrak, Ebrahim Tayyebi, Egill Skulason
Summary: Density functional theory calculations are employed to analyze the active sites for CO2 reduction reaction (CO2RR) on TiO2/RuO2 and SnO2/RuO2 alloys. The results show that bridge Ru-Ti and bridge Ti-Ti sites are the active sites for CO formation, while bridge Ru-Ru sites are favorable for formic acid formation. Additionally, substitution of Cu for one bridge Ru atom in a RuO2 overlayer on TiO2 significantly decreases the overpotential for CO and formic acid formation. The knowledge gained from these calculations can be useful for engineering the active sites in order to enhance the catalytic performance.
Article
Engineering, Chemical
Fuping Tian, Xinchi Zhang, Yingying Sheng, Xiao Chen, Xiang Wang, Changhai Liang
Summary: The liquid phase selective hydrogenation of cinnamaldehyde was studied using Co-C -T (T = 400-700 degrees C) catalysts derived from the carbonization of Co-BTC MOF precursor at different temperatures. Co-C-500 showed higher conversion and selectivity to cinnamyl alcohol under mild conditions, attributed to its large specific surface area, uniformly dispersed metallic cobalt nanoparticles, and more defect sites on the carbon support. Moreover, Co-C-500 exhibited excellent reusability in 5 successive cycles.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Qianqian Zhang, Yifan Sun, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, Pd/SnO2 nanocatalysts were synthesized and used for selective hydrogenation of a, b-unsaturated aldehydes. The results showed high selectivity and faradaic efficiency, outperforming commercial Pd/C catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Wenlan Ji, Weiwei Li, Tian C. Zhang, Yuan Wang, Shaojun Yuan
Summary: To reduce the global hazards of arsenic, arsenic-containing water needs to be purified. This study synthesized dimensionally stable TNTAs/SnO2/RuO2 anodes for efficient electrocatalytic oxidation of As(III) by successively electrodepositing SnO2 and RuO2 nanoparticles on TiO2 nanotube arrays. The optimized TNTAs/SnO2/RuO2-10 anode exhibited excellent electrochemical stability and longer service lifetime, with an oxidation conversion efficiency of As(III) still maintained at 98% even after 11 cycles of usage.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Shibo Cheng, Shan Lu, Xiang Liu, Gao Li, Fei Wang
Summary: A bimetallic Pt8Co1 catalyst supported on alkali-treated ZSM-5 zeolite showed superior catalytic performance in the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol. The catalyst exhibited high COL selectivity and CAL conversion efficiency, attributed to the uniform dispersion of Pt8Co1 nanoparticles on the alkali-treated ZSM-5 zeolite support. The bimetallic catalyst had higher electron density and more acidic sites, leading to its enhanced catalytic activity.
Article
Engineering, Environmental
Komal N. Patil, P. Manikanta, Puneethkumar M. Srinivasappa, Arvind H. Jadhav, Bhari Mallanna Nagaraja
Summary: This review summarizes the recent developments in chemoselective liquid phase hydrogenation of cinnamaldehyde using transition metal-based catalysts, focusing on the selective hydrogenation to cinnamyl alcohol and hydrocinnamaldehyde. The review discusses the use of noble metals (Pt, Pd, Ru, Au, Ir, and Ag) and non-noble metals (Ni, Co, and Cu) as catalysts, and considers the effect of reaction variables. The limitations and future prospects of both noble metal and non-noble metal catalysts for selective hydrogenation of cinnamaldehyde are also discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Feng Long, Xincheng Cao, Xia Jiang, Peng Liu, JianChun Jiang, Xiaolei Zhang, Junming Xu
Summary: Catalyst design is critical for selective hydrogenation reactions. In this study, NiCu clusters anchored on oxygen-deficient rutile were found to be highly effective for the conversion of fatty acids into alkanes or alcohols. The anchoring of NiCu clusters on oxygen defects promoted alcohol production, while other active NiCu clusters favored alkane production.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Yunqing Zhu, Bingqing Li, Yongming Wang, Tian Wang
Summary: Electrocatalytic oxidation (ECO) is a highly efficient and environmentally friendly method for water treatment. This study focuses on the preparation of high-performance anodes with long service lifetimes. Porous Ti/RuO2-IrO2@Pt, Ti/RuO2-TiO2@Pt, and Ti/Y2O3-RuO2-TiO2@Pt anodes were fabricated using modified micro-emulsion and vacuum impregnation methods. These anodes exhibited large electrochemically active areas and long service lives. The Ti/Y2O3-RuO2-TiO2@Pt anode showed the highest degradation efficiency for tetracycline and consumed the lowest energy.
Article
Chemistry, Physical
Yi Tang, Hongkun Li, Kuncheng Cui, Yongde Xia, Guoyuan Yuan, Jian Feng, Wei Xiong
Summary: The chemoselective hydrogenation of cinnamaldehyde to cinnamyl alcohol was accelerated by a Pt nanocatalyst supported on an amorphous coordination polymer. The prepared 1.0wt.%Pt/Co-Asp nanocatalyst exhibited excellent catalytic activity and selectivity, which can be attributed to the synergistic effect between Pt nanoparticles and the amorphous Co-Asp polymer.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Chengyu Xing, Yurui Xue, Xuchen Zheng, Yang Gao, Siao Chen, Yuliang Li
Summary: Graphdiyne-based copper oxide quantum dots were used as cathodic electrodes and water as the hydrogen source to achieve the electrocatalytic hydrogenation of purely aliphatic and functionalized olefins in aqueous solution at high current density under ambient temperature and pressure, showing high activity and selectivity. The incomplete charge transfer between graphdiyne and copper atoms due to the chemical and electronic structure of graphdiyne optimized the adsorption/desorption of reaction intermediates, resulting in high selectivity and activity for hydrogenation reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Yusheng Gao, Aiqun Kong, Mao Peng, Ye Lv, Menghui Liu, Wei Li, Jinli Zhang, Yan Fu
Summary: This study presents a new electrochemical strategy for achieving C=O selectivity in the thermal catalytic hydrogenation of cinnamaldehyde (CAL). The results show that the specific interaction between CAL and electrolyte-modulated Pd surface enables the unexpected switch toward C=O bond. The electrochemical environment plays a crucial role in altering the selective hydrogenation of alpha,beta-unsaturated aldehydes.
MOLECULAR CATALYSIS
(2022)
Article
Plant Sciences
Nan Chao, Shuai Huang, Xiaoru Kang, Keermula Yidilisi, Mingjie Dai, Li Liu
Summary: In this study, five MaCADs were cloned and characterized in Morus alba. The results showed that MaCAD3/4 were bona fide CADs involved in lignin biosynthesis. Down-regulation of MaCAD3/4 resulted in a significant decrease in lignin content in both stems and leaves. MaCADs exhibited different expression patterns in response to various stresses, indicating their possible diverse roles. These findings provide an important foundation for the genetic modification of the monolignol pathway in mulberry.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Chemistry, Applied
Yuan Tan, Xiaoyan Liu, Leilei Zhang, Fei Liu, Aiqin Wang, Tao Zhang
Summary: The chemoselective hydrogenation of unsaturated aldehyde to unsaturated alcohol has attracted more attentions recently. By using ZnAl-hydrotalcite-supported cysteine-capped Au-25 nanoclusters, the conversion of cinnamaldehyde to cinnamyl alcohol with high selectivity and full substrate conversion was achieved.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Xiaoya Fan, Donglin Zhao, Zhiqin Deng, Longcheng Zhang, Jun Li, Zerong Li, Shengjun Sun, Yongsong Luo, Dongdong Zheng, Yan Wang, Binwu Ying, Jing Zhang, Abdulmohsen Ali Alshehri, Yuxiao Lin, Chengwu Tang, Xuping Sun, Yinyuan Zheng
Summary: A highly efficient electrocatalyst for electrochemical nitrate reduction reaction (NO3-RR) is presented in this study, which is constructed by anchoring Co nanoparticles on TiO2 nanobelt array on titanium plate (Co@TiO2/TP). The constructed Schottky heterostructures accelerate the rate determining step and facilitate NO3- adsorption, ensuring the selective conversion to NH3. The Co@TiO2/TP electrocatalyst achieves excellent Faradaic efficiency (96.7%) and high NH3 yield (800.0 mu mol h(-1) cm(-2)) under neutral solution. Moreover, the Co@TiO2/TP heterostructure catalyst exhibits remarkable stability in a 50-h electrolysis test.
Article
Engineering, Environmental
Hongliang Zhang, Shutao Wu, Xun Huang, Li Li, Qiang Liao, Zidong Wei
Summary: The electrochemical reduction of oxygen to produce hydrogen peroxide can replace the current anthraquinone process. However, the concentration, transportation, and storage of hydrogen peroxide increases both the cost and safety risks. A method was reported to couple the electrochemical production of hydrogen peroxide with its in situ application in the selective oxidation of organics, achieving high selectivity and Faradaic efficiency under optimized conditions. This method is also feasible for various other organic oxidation reactions with high selectivity and efficiency, and achieved an overall Faradaic efficiency of 132.79% in the paired oxidation of furfural to furoic acid.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Qin Dong, Tao Wang, Ruiyi Gan, Cheng Tong, Rui Xu, Minhua Shao, Cunpu Li, Zidong Wei
Summary: The study successfully polymerized a positively charged layer with multication sidechains on a commercial polypropylene separator, achieving dendrite-free Li deposition and improving the cycling stability and rate performance of lithium-metal batteries.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Engineering, Chemical
Yunhao Xu, Xun Huang, Cunpu Li, Zidong Wei, Meng Wang
Summary: This study developed a method based on convolutional neural networks to predict structure-dependent properties by converting molecular structure into three-dimensional images. It achieved accurate predictions of both theoretical molecular energy and experimental properties by learning structure features from the images.
Article
Polymer Science
Tao Wang, Yinfeng Yang, Meirong Li, Qin Dong, Cunpu Li, Na Yang, Minhua Shao, Zidong Wei
Summary: This study developed a 3-in-1 polymer catalyst with features of catalysts, electron conductors, and ion conductors. The performance of a flexible Zn-air battery catalyzed by this polymer was much better than a battery made from a mixture of commercial catalyst powder, ion-exchange polymer, and additives.
Article
Nanoscience & Nanotechnology
Cheng Tong, Hongping Chen, Shangkun Jiang, Li Li, Minhua Shao, Cunpu Li, Zidong Wei
Summary: To address the irreversible loss of soluble polysulfide intermediates in lithium-sulfur batteries (LSBs), a 1T MoS2-MnO2/CC heterostructure functional covering layer is designed to regulate the kinetics and retard the loss of soluble polysulfides. This enables rapid and uniform nucleation of solid Li2S2/Li2S, resulting in outstanding rate capabilities for the Li-S batteries. This study provides a novel approach to suppress the "farewell effect" of polysulfides from a kinetic perspective.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Rui Xu, Yuanyuan Zhou, Xiaoxia Tang, Fangzheng Wang, Qing Dong, Tao Wang, Cheng Tong, Cunpu Li, Zidong Wei
Summary: By decorating transition metal nitrides onto a carbon framework, a stable lithium metal anode for lithium metal batteries can be developed with uniform Li nucleation and guided Li metal deposition. The transition metal nitrides provide excellent conductivity for fast electron transport and maintain a stable interface for Li reduction. The designed multi-dimensional structure effectively regulates the growth of Li metal, resulting in ultra-stable cycling performance and excellent rate capability in symmetrical cells and full cells.
Article
Chemistry, Multidisciplinary
Xiaoxue Luo, Xiaoxia Tang, Jingtian Ni, Baijing Wu, Cunpu Li, Minhua Shao, Zidong Wei
Summary: In this study, MnO2 with an asymmetric electronic configuration was designed to discriminate the spin-paired pi electrons of styrene. On the MnO2/(Ru0.3Ti0.7)O-2/Ti bifunctional anode, one of these discriminated pi electrons combined with reactive oxygen species (ROS) such as (OH)-O-center dot, (OOH)-O-center dot, etc., to form benzaldehyde via Grob fragmentation instead of benzoic acid. However, only benzoic acid was obtained from the oxidation of styrene on the anodes MOs/(Ru0.3Ti0.7)O-2/Ti, where MOs are other metal oxides with symmetric electronic configurations.
Article
Chemistry, Physical
Rui Xu, Yuanyuan Zhou, Fangzheng Wang, Hongan Tang, Qin Dong, Tao Wang, Cheng Tong, Cunpu Li, Zidong Wei
Summary: Stable lithium metal anodes are achieved by using an ultralight lithiophilic framework with Faraday-shielded cages and a conductive carbon framework, which effectively regulates Li+ ion nucleation behavior and provides adequate space to store Li metal.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Chenxi Gao, Na Yang, Cunpu Li, Xi Wang, Xun Yu, Ling Zhang, Zidong Wei
Summary: The Chinese iron pan can function as a nonstick pan without a PTFE coating after a Kitchen God blessing seasoning process. Through oil-coating and heating, the reversible insertion and extraction of oxygen atoms produce Fe3O4 nanoballs on the pan's surface. These nanoballs give the iron pan a conditional hydrophobicity property, allowing heat to be transferred rapidly when ingredients contain much water and preventing sticking when they contain less water. This discovery reveals a method of generating nanoballs on metal surfaces and explains the delicious taste produced by cooking with a Chinese iron pan.
NANO MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaoxue Luo, Baijing Wu, Jinrui Li, Yufeng Wang, Xiaoxia Tang, Cunpu Li, Minhua Shao, Zidong Wei
Summary: This paper focuses on regenerating carboxylic acid into peroxy acid through electric water splitting, in order to achieve cycloolefin epoxidation reaction. Benzoic acid is chosen as the catalyst, which can be activated on the electrode to fulfill the epoxidation and release the benzoic acid, enabling a sustainable and green approach for organic synthesis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Xun Jiao, Xiaoxia Tang, Jinrui Li, Cunpu Li, Qingfei Liu, Zidong Wei
Summary: In this study, GeS2 is used to solve the issues in the charge process of lithium-sulfur batteries (LSBs). By regulating the interconversion-deposition behavior of S-species during charging, soluble LiPSs can be adsorbed on the GeS2 surface, convert to α-S-8 molecules, and crystallize uniformly. This maintains a stable cathode-electrolyte interface and leads to excellent charge/discharge performance of the LSBs.
Article
Chemistry, Multidisciplinary
Rui Xu, Hongan Tang, Yuanyuan Zhou, Fangzheng Wang, Hongrui Wang, Minhua Shao, Cunpu Li, Zidong Wei
Summary: In this study, the Co9S8/MoS2 heterojunction is used as a model cathode host material to discuss the strategy for improving the performance of lithium-sulfur batteries and elucidating the catalytic mechanism. The introduction of sulfur vacancies can harmonize the chemisorption of the heterojunction component and induce the generation of radicals, leading to a reduction in the accumulation of liquid lithium polysulfides.
Article
Chemistry, Multidisciplinary
Cheng Tong, Xianyi Tang, Qin Dong, Rui Xu, Tao Wang, Cunpu Li, Yao Nie, Li Li, Minhua Shao, Zidong Wei
Summary: Densely vertical-grown NiFe hydroxide nanosheets were synthesized on a nickel foam for dendrite-free lithium anode. The invented lithium anode showed suppressed Li dendrite growth and exhibited uniform morphology and excellent cycle performance in a symmetric cell.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yunhao Zhao, Rui Xu, Yuanyuan Zhou, Fangzheng Wang, Cheng Tong, Minhua Shao, Meng Wang, Cunpu Li, Zidong Wei
Summary: Carbonized nickel metal organic framework scaffolds on nickel foam (CNS@NF) were fabricated to regulate Li-ion plating/stripping in lithium cells, contributing to uniform Li nucleation and low overpotential. The spongy structure of the carbonized MOF can reduce local current density by smoothing sharp edges of NiO, resulting in excellent electrochemical performance in both symmetric cells and full cells.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Ling Zhang, Jiawei Huang, Qizheng Zheng, Ang Li, Xianglan Li, Jing Li, Minhua Shao, Hongmei Chen, Zidong Wei, Zihua Deng, Cunpu Li
Summary: A superaerophobic NiCo bimetallic phosphide electrocatalyst with self-sacrificing templates has been developed, showing an overpotential of only 205 mV to achieve a HER current density of 800 mA cm(-2), even superior to Pt/C. This study offers a promising approach for the development of industrialized HER electrocatalysts.
CHEMICAL COMMUNICATIONS
(2021)
