Article
Chemistry, Physical
Shiwen Miao, Fang Wang, Junhua Liu, Weizhong Mao, Bingqian Yin, Yafei Li
Summary: CoCrOx catalysts show high activity and selectivity for the oxidation of toluene in the absence of solvent. Calcination leads to phase transformation and changes in acid-basic sites and reactive oxygen species, affecting the activity and selectivity of toluene oxidation. After calcination, Co2+ migrates to vacant sub-surface position and remains on the surface, resulting in the production of benzaldehyde and high selectivity.
APPLIED CATALYSIS A-GENERAL
(2022)
Review
Chemistry, Multidisciplinary
Jing-Jing Lv, Ruonan Yin, Limin Zhou, Jun Li, Reddu Kikas, Ting Xu, Zheng-Jun Wang, Huile Jin, Xin Wang, Shun Wang
Summary: This review extends the discussion of electrocatalytic CO2 reduction reaction (eCO2RR) to the microenvironment around the electrocatalytic center and provides a comprehensive overview of recent research progress. The microenvironment is categorized based on the components relevant to electrocatalytic active sites, and the factors affecting the catalytic performance of eCO2RR are discussed. Challenges, potential solutions, and perspectives for future research are also addressed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Organic
Xue Li, Fang Bai, Chaogan Liu, Xiaowei Ma, Chengzhi Gu, Bin Dai
Summary: An efficient electrochemical method for benzylic C(sp(3))-H bond oxidation has been developed, which utilizes O-2 as the oxygen source and lutidinium perchlorate as an electrolyte in an undivided cell. The proposed single-electron transfer mechanism for the electrooxidation reaction was supported by cyclic voltammetry studies, O-18 labeling experiments, and radical trapping experiments.
Article
Chemistry, Physical
Shrikant M. Khake, Ken Yamazaki, Yusuke Ano, Naoto Chatani
Summary: This study reports a branch-selective C-H alkenylation method using an iridium catalyst with alkenes, suitable for aniline derivatives containing a pyrimidine-directing group, offering a broad substrate scope and tolerating various functional groups. The origin of branch selectivity was investigated using density functional theory calculations.
Article
Chemistry, Analytical
Ji Zhang, Xu Li, Qinhe Pan, Tong Liu, Qingji Wang
Summary: Litchi-like g-C3N4/In2O3 composites were synthesized and used to develop H-2 sensors. The sensor based on 3 wt% g-C3N4/In2O3 showed excellent response properties to H-2, with fast response/recovery time and high selectivity.
Article
Chemistry, Multidisciplinary
Zhong-Wei Hou, Ding-Jin Liu, Peng Xiong, Xiao-Li Lai, Jinshuai Song, Hai-Chao Xu
Summary: This study reports a site-selective electrochemical amination reaction that can convert benzylic C-H bonds into C-N linkages without the need for external oxidants or metal catalysts. The success lies in using HFIP as a co-solvent to modulate the oxidation potentials of the substrate and product, avoiding overoxidation of the latter.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Chemical
Chen Chen, Qiong Tang, Hong Xu, Mingxing Tang, Xuekuan Li, Lei Liu, Jinxiang Dong
Summary: A series of alkylated tetralin fluids resembling naphthenic base oils were synthesized using tetralin and α-olefins as raw materials derived from the coal chemical industry. The product composition could be controlled by adjusting the feed ratio. The synthesized fluids showed promising properties as lubricating base oils, highlighting the potential for producing naphthenic base synthetic oils from coal-based chemicals.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Xueyan Chen, Shuo Hu, Xiaoxiao Qin, Min Chen, Jianghao Zhang, Xiaolei Bao, Changbin Zhang
Summary: In this study, Ag/Al-600H(2) catalyst was prepared by loading Ag precursor onto Al2O3 and reducing with H-2. It was found that H-2 reduction had a significant effect on the activity and water resistance of Ag-based catalyst in HCHO oxidation.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zi-Hao Fu, Hao-Dong Tian, Shao-Fei Ni, James S. Wright, Ming Li, Li-Rong Wen, Lin-Bao Zhang
Summary: In this electrochemical protocol, NaCl serves as both an electrolyte and a redox mediator for the selective oxidation of sulfides to sulfoxides. Using traceless electrons as an ideal oxidant, this method offers good to excellent yields of sulfoxides at ambient temperature, while being environmentally friendly and compatible with sensitive functional groups. The cost-effective graphite felt electrodes can be reused multiple times without loss of activity, allowing for scalability of the methodology.
Article
Chemistry, Multidisciplinary
Jyoti Dhankhar, Micha D. Hofer, Anthony Linden, Ilija Coric
Summary: This article presents a new selectivity mode for C-H arylation reactions, which is the preference for C(sp(2))-H activation next to alkyl groups. The study results indicate that this preference is related to the non-covalent interactions between the catalyst and the substrate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Zhiwei Zhao, Yin Liu, Siyi Wang, Shunyao Tang, Dengke Ma, Zile Zhu, Chengcheng Guo, Youai Qiu
Summary: A direct, metal-free, and site-selective electrochemical C-H carboxylation of arenes using CO2 as the carboxylic source was reported. The method showed high chemo- and regioselectivity and worked well with various challenging arenes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jesse H. Hsu, Tyler E. Ball, Sewon Oh, Erin E. Stache, Brett P. Fors
Summary: This study demonstrates a method to degrade polymers using electrochemistry, and investigates the selectivity and efficiency of the process. Electrocatalytic degradation of polymers with activated C-H bonds is achieved through oxidative polymer degradation promoted by molecular oxygen and electrochemically mediated hydrogen atom transfer (HAT).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Shuxing Bai, Yong Xu, Kailei Cao, Xiaoqing Huang
Summary: This study achieved selective EOR to CO2, with the optimized catalyst showing excellent performance, providing fundamental research for the design of efficient catalysts for EOR.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hai-Bing Zhao, Jia-Nan Huang, Qi Qin, Hong-Yan Chen, Dai-Bin Kuang
Summary: A CsCuCl3/Cu nanocrystals heterojunction catalyst was synthesized through a facile acid-etching solution process, which exhibited excellent charge separation efficiency and improved CO2 adsorption and activation, leading to high electron consumption rate and CH4 selectivity.
Article
Engineering, Chemical
Mingxiao Ma, Huimin Jin, Zhengkai Wu, Yingna Guo, Qingkun Shang
Summary: B-g-C3N4/Bi2WO6 composites were synthesized and characterized, showing selective oxidation of aromatic alcohols to aromatic aldehydes under visible light. The conversion rate and selectivity of benzyl alcohol were significantly improved when compared to Bi2WO6 alone. The enhanced photocatalytic activity and selectivity were attributed to the improved separation of photogenerated carriers and suppressed hole generation on the composite.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Xiaojuan Chen, Yu Zhou, Jiesen Li, Suresh C. Pillai, Nanthi Bolan, Juhua He, Ning Li, Song Xu, Xin Chen, Qinghua Lin, Hailong Wang
Summary: Biochar obtained from pyrolysis of biomass waste has the potential to be used in wastewater treatment due to its large surface area and active sites. In this study, biochar was prepared from sorghum straw and its adsorption kinetics towards tartrazine was investigated. The optimized biochar was also used as a catalyst for peroxydisulfate activation to degrade tartrazine. The degradation pathways and reactive substances were analyzed, showing the potential ecological benefits of this catalytic system.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Ning Li, Tiantian Zhang, Zuliang Wu, Jing Li, Wei Wang, Jiali Zhu, Shuiliang Yao, Erhao Gao
Summary: The synergistic effects of Sn and Ag in the 1Sn5Ag/gamma-Al2O3 catalyst greatly enhance its C3H6-SCR performance. The presence of AgCl crystallites helps maintain an appropriate redox ability and suppresses over-oxidation of C3H6. The coexistence of Ag and Sn increases the reactivity of surface adsorbed oxygen and hydroxyl groups, and the electron transfer effects increase the ratio of Ag-0/Ag+.
Article
Engineering, Aerospace
Xibin Cao, Ning Li, Shi Qiu, Chaoyong Li
Summary: This paper proposes a scheduling method based on grids coding for searching and tracking time-sensitive targets in a region. It assesses the observation problem and constructs a grids coding model for observation resources and tasks. A dynamic updating process of probability is established, taking into account the movement of the time-sensitive target, and a dynamic prediction model of target position is founded, considering the unpredictability of the time-sensitive target model. Ultimately, a mega-constellation searching technique is developed with the enhancement of information entropy of covering grids as the objective function.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Zhihao Zhang, Meng Li, Tong Yang, Zixi Zang, Ning Li, Ronger Zheng, Jinjia Guo
Summary: Research on the transient variation processes of oceanic dissolved CO2 is significant due to the complexity and dynamics of the marine environment. However, the response performance limitation of in situ sensors poses challenges. This study presents a novel system solution that overcomes this limitation, enabling high-performance detection with a seconds-scale response, sub-ppmv level precision, and 3000 m rated depth. By improving the response performance of the sensor, the water mixing process and concentration variation profile can be accurately portrayed, offering insights into carbon cycle research in deep-sea unstable regions.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Weizhuo Xu, Bingjie Zhou, Qing Wang, Guohao Xu, Ning Li, Wei Liu, Z. Conrad Zhang
Summary: This study investigates the oxidation of biomass in the anode electrolyte solution for energy-efficient hydrogen production. Polyoxometalate (POM) serves as both a catalyst for biomass oxidation and a charge carrier for regeneration, promoting hydrogenation at the cathode. Transition metal salts (CuCl2, CrCl3, and FeCl3) are studied as synergistic catalysts with POM to enhance the degradation of raw biomass. FeCl3 shows the most significant effect in promoting cellulose hydrolysis and maintaining the high oxidation ability of the solution. Consequently, the faraday efficiency of hydrogen production at the cathode reaches 90%.
Article
Biochemistry & Molecular Biology
Xingfan Gong, Jiacheng Xu, Tiantian Zhang, Yan Sun, Shiyu Fang, Ning Li, Jiali Zhu, Zuliang Wu, Jing Li, Erhao Gao, Wei Wang, Shuiliang Yao
Summary: Cu-doped manganese oxide (Cu-Mn2O4) prepared using aerosol decomposition showed excellent CO oxidation performance. The 0.5Cu-Mn2O4 catalyst with a hollow sphere morphology and high Mn3+, Cu+, and Oads ratios exhibited the best CO oxidation activity, with low T-50 and T-90 values. DRIFTS-MS analysis revealed that terminal-type oxygen (M=O) and bridge-type oxygen (M-O-M) on 0.5Cu-Mn2O4 were reactive at low temperatures and water had limited inhibitory effects on CO oxidation.
Article
Physics, Fluids & Plasmas
Erhao Gao, Keying Guo, Qi Jin, Li Han, Ning LI, Zuliang Wu, Shuiliang Yao
Summary: In this study, NaCl aqueous solution was used as a novel electric power transmission electrode in a DBD reactor for highly efficient ozone generation. The results showed a high O-3 yield of 242 g kWh(-1) and a concentration of 14.6 g m(-3) O-3. NaCl aqueous solution behaves as a capacitor, and its resistance can be ignored compared to the discharge barrier and discharge space, ensuring the efficient generation of ozone. It is expected that ozone generation using NaCl aqueous solution as a novel electrode in a DBD reactor could be an alternative technology with good application prospects.
PLASMA SCIENCE & TECHNOLOGY
(2023)
Article
Limnology
Ziwei Sun, Jin Liu, Yue Zhang, Jinming Song, Yuanyuan Xiao, Huamao Yuan, Ning Li, Xuegang Li
Summary: Rare earth elements (REEs) are useful in tracing source materials and determining their origins due to their conservation and immobility during chemical alteration processes. This study investigated the temporal variation of REEs in columnar sediments from Jiaozhou Bay in North China to understand the factors influencing sediment geochemical variations. The results showed that the residual fraction was the main host for REEs compared to other fractions, and the REE variations were determined by contributions from different provenances rather than grain size or chemical weathering effects. The study also found changes in REE ratios after a certain depth, indicating increased contributions from certain rivers due to human activities like reservoir construction and aquaculture.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2023)
Article
Environmental Sciences
Ning Li, Huanxuan Li, Chen Xu, Zhong Zhou, Tao Rao, Ran Ji, Sihang Lin, Jia Du, Shaodan Xu, Shuguang Lyu, Feng Li, Junhong Tang
Summary: Metal-organic frameworks (MOFs) have attracted increasing attention as precursors for catalysts. In this study, heterojunction Co3O4-CuO doped carbon materials (Co3O4-CuO@CN) were successfully prepared by directly carbonizing CuCo-MOF in air. The Co3O4-CuO@CN-2 showed excellent catalytic activity in the degradation of Oxytetracycline (OTC), with a degradation rate 4.25 and 4.96 times higher than that of CuO@CN and Co3O4@CN, respectively. Additionally, Co3O4-CuO@CN-2 exhibited good stability, reusability, and a wide pH range (pH 1.9-8.4).
ENVIRONMENTAL RESEARCH
(2023)
Article
Plant Sciences
Yanqiu Yang, Tingyu Hao, Xiaohu Yao, Yue Che, Yueyang Liu, Mingxia Fang, Yingjie Wang, Di Zhou, Huifang Chai, Ning Li, Yue Hou
Summary: Crebanine demonstrates neuroprotective effects in ischemic stroke by reducing brain damage and inhibiting oxidative stress and neuroinflammation.
Article
Plant Sciences
Mi Zhang, Kouharu Otsuki, Reo Takahashi, Takashi Kikuchi, Di Zhou, Ning Li, Wei Li
Summary: Liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) is a powerful tool for the rapid identification of compounds within natural resources. This study used LC-MS/MS analysis to investigate the presence of structurally diverse daphnane diterpenoids in Wikstroemia indica, significantly contributing to our understanding of bioactive diterpenoids in plants within the Thymelaeaceae family.
Review
Chemistry, Multidisciplinary
Xiaoyu Zhang, Ning Li, Guorui Wang, Chi Zhang, Yu Zhang, Fanglei Zeng, Hailong Liu, Gang Yi, Zhongwei Wang
Summary: Flexible human body electronic sensors with flexibility, extensibility, and responsiveness are highly desirable. Polysiloxane materials have become the preferred choice as a flexible matrix for their good affinity towards the human body.
Proceedings Paper
Computer Science, Artificial Intelligence
Liying Yu, Peng Wang, Zhe Chen, Dewen Li, Ning Li, Rachid Cherkaoui
Summary: This paper presents a distributed shadow dynamic consensus (DSDC) framework to address the generation company (GENCO) strategic bidding problem in the independent system operator (ISO) operation. The framework uses a distributed dynamic consensus algorithm to estimate the general equality constraint and obtain optimal locational marginal prices (LMP) and power allocation. The proposed framework is tested using the IEEE 30-bus test system.
2023 IEEE PES CONFERENCE ON INNOVATIVE SMART GRID TECHNOLOGIES, ISGT MIDDLE EAST
(2023)
Article
Chemistry, Multidisciplinary
Ya-Cheng Hao, Min-Hua Zong, Qi Chen, Ning Li
Summary: In this study, the catalytic activity and stability of carbonyl reductase from Streptomyces coelicolor were improved through structure-guided engineering, enabling the direct conversion of chitin-derived N-acetyl-D-glucosamine into chiral 3-acetamido-5-(1-hydroxyethyl)furan. Protein engineering is demonstrated as a powerful strategy to address the incompatibility between chemical and biocatalysts in chemobiocatalysis.
Article
Engineering, Aerospace
Li Ning, Yue Chengfei, Guo Haibo, Qiu Shi, Cao Xibin
Summary: A distributed domain control strategy was proposed to address the issues of poor system connectivity and high dependence on ground resources in large-scale satellite constellations. It involved hierarchical management, intradomain autonomy, and dynamic maintenance. The strategy included defining static and dynamic indexes to measure governability, proposing a weighted cluster head selection method, establishing a cascading optimal initialization algorithm, and introducing an event-triggered dynamic time slice domain control method. The control simulation results verified the effectiveness of the proposed method in reducing the number of satellites managed through ground stations to 11% and resolving the issue of high dependence on ground resources.
CHINESE SPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zi-Ye Liu, Qian-Yu Wang, Ji-Ming Hu
Summary: In this study, a layered carbon dot composite catalyst (NiFe LDH@CDs) was prepared using a one-step coprecipitation method, without the need for heating or hydrothermal treatment. The CD-functionalized catalyst facilitated rapid charge transfer and accelerated the oxygen evolution reaction. Additionally, the heterojunction structure formed between NiFe LDH and CDs efficiently suppressed photoelectron-hole recombination.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Rohit Kumar, Ankit Kumar Srivastava, Palaniyappan Nagarasu, Vedichi Madhu, Ekambaram Balaraman
Summary: We designed and synthesized a NN-CoII bidentate complex and used it for the amination of alcohols under mild and solventless conditions. The complex exhibited good reactivity towards both primary and sterically hindered secondary alcohols, providing high yields of amines. The pyrazole moiety in the ligand played a crucial role in the reaction. Furthermore, we demonstrated the reusability of the complex as a homogeneous cobalt catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shivanand Chettri, Liang-Ting Wu, Sagarmani Rasaily, Debesh Sharma, Bikram Gurung, Rajani Dewan, Sudarsan Tamang, Jyh-Chiang Jiang, Anand Pariyar
Summary: Replicating the enzymatic surface microenvironment in vitro is challenging, but constructing an analogous model could facilitate our understanding of surface effects and aid in developing an efficient bioinspired catalytic system. In this study, five unique Cu2O morphologies were generated, and the surface morphology variations were found to be a consequence of differences in the exposure of low-index facets. The reactivity of Cu2O was found to be influenced by the proportion of {110} planes, with r-Cu2O exhibiting the highest reactivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Yong Tang, Jianhao Qiu, Dingliang Dai, Guanglu Xia, Lu Zhang, Jianfeng Yao
Summary: Defect engineering has been shown to improve the photocatalytic performance. This study investigated the use of defect-rich UiO-66-NH2 wrapped by ZnIn2S4 as a catalyst for photocatalytic H2O2 production. The defects in UiO-66-NH2 enhanced O-2 adsorption and charge separation, leading to higher H2O2 yield. The insights from this work can advance the research in defect engineering of MOFs and photocatalytic H2O2 synthesis.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Ruiyang Qu, Shuxin Mao, Jana Weiss, Vita A. Kondratenko, Evgenii V. Kondratenko, Stephan Bartling, Haifeng Qi, Annette-Enrica Surkus, Kathrin Junge, Matthias Beller
Summary: The hydrogenation of amides, a challenging reaction usually performed at high temperatures, has been achieved under milder conditions using a new Pt-MoOx/TiO2 catalyst. This catalyst system enables the selective hydrogenation of various amides and imides.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Xiaoran Niu, Ao Wang, Lei Tong, Lei Wang, Yuan Kong, Chenliang Su, Hai-Wei Liang
Summary: This study introduces a novel intermetallic PdCu3 catalyst supported on defective nanodiamond-graphene (ND@G), which exhibits high selectivity (95%) and remarkable activity (turnover frequency: 2940 h(-1)), six times higher than that of the commercial Lindlar catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Review
Chemistry, Physical
Zhiyuan Zheng, Yiming Yue, Hongying Zhuo, Qinggang Liu, Yanqiang Huang
Summary: This review presents the recent research advances on single-atom catalysis for deep reduction of CO2. Detailed introductions and summaries were classified into three categories based on proton-coupled multi-electron transfer approaches: strengthening metal-support interaction, rational design and regulation of coordination environment, and development of SACs with multi-atom active sites. The challenges and future research directions in the field of SACs for CO2 reduction are also proposed.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shiv Kumar, Paramita Datta, Anup Bhunia, Swadhin K. Mandal
Summary: This article reports a transition-metal-free process for in situ denitrogenation of tosylhydrazones, resulting in the production of various sulfones. The authors used a phenalenyl-based odd alternant hydrocarbon as a photoredox catalyst, which acted as a potent oxidant to facilitate the denitrogenation reaction. The method showed wide functional-group tolerance and high yields, making it suitable for late-stage modification of natural products.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
L. A. Luque-Alvarez, J. Gonzalez-Arias, F. Romero-Sarria, T. R. Reina, L. F. Bobadilla, J. A. Odriozola
Summary: Currently, the production of acetic acid through the carbonylation reaction of methanol has limitations, leading to the exploration of alternative methods using heterogeneous catalysts. This study investigates the methanol carbonylation reaction over a Cu-H-MOR catalyst and proposes a reaction mechanism based on the catalytic behavior and performance of the catalyst. The results provide insights into the reaction mechanism and the involvement of acid and redox centers.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
