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Structure transformation induced bi-component Co–Mo/A-Co(OH)_(2)as highly efficient hydrogen evolution catalyst in alkaline media

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Nano Materials Science 2024年第5期6卷 565-575页

作者： Yingqing Ou Lu Liu Xiao Peng lili zhang Zhongwen Ou Wendong zhang Yunhuai zhang School of Chemistry and Chemical Engineering Chongqing UniversityChongqing400044China Department of Chemistry National University of SingaporeSingapore117543Singapore Institute of Sustainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and Research in Singapore(A*STAR)Singapore627833Singapore School of Physics Chongqing UniversityChongqing400044China College of Chemistry Chongqing Normal UniversityChongqing401331China Materials Science and Engineering College Sichuan University of Science&EngineeringZigong643000China Department of Military Infrastructure Army Logistics University of PLAChongqing401311China

Elucidating the inherent origins of the sluggish hydrogen evolution reaction(HER)kinetics in alkaline media and developing high-performance electrocatalysts are fundamental for the advances of conventional alkaline water electrolyzers and emerging anion exchange membrane(AEM)*** we present a facile electrochemical modification strategy for the synthesis of bi-component Co–Mo_((18%))/A-Co(OH)_(2)catalyst toward efficient HER catalysis in alkaline *** Co–Mo alloys with adjustable Mo/Co atomic ratio are first prepared by H2-assisted cathodic *** virtue of the appropriate electronic structure and hydrogen binding energy,Co–Mo_((18%))is the most HER active among the alloys and is further activated by a constant-current electrochemical modification *** characterizations reveal the formation of amorphous Co(OH)_(2)nanoparticles on the *** analysis combined with theoretical calculations reveal that the in-situ formed Co(OH)_(2)can efficiently promote the water dissociation,resulting in accelerated Volmer-step *** a result,the Co–Mo_((18%))/A-Co(OH)_(2)simultaneously achieves the optimization of the two factors dominating alkaline HER activity,i.e.,water dissociation and hydrogen adsorption/desorption via the bifunctional synergy of the *** high HER activity(η10 of 47 mV at 10 mA cm^(-2))of Co–Mo_((18%))/A-Co(OH)_(2)is close to benchmark Pt/C catalyst and comparable or superior to the most active non-noble metal catalysts.

关键词： Co-Mo_((18%))/A-Co(OH)_(2) Electrochemical modification Water dissociation Alkaline HER

Research on Architecture Design with High Reliability of Network Nodes in the Amphibious Combating Simulation System

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Wuhan University Journal of Natural Sciences 2019年第6期24卷 537-548页

作者： LIU Yu zhang lili LUO Rufen Unit 91976 of the Chinese PLA

Upper-lower computer mode is the main architecture design of the amphibious combat simulation system(ACSS)at *** continuous improvement of real-time performance,software and hardware infrastructure,the exponential growth of operational network data scale is realized,but the availability performance of ACSS *** reliability of the working host as the key node has become the bottleneck of the overall availability of network nodes in the *** optimize the network node architecture of ACSS,this paper presents an effective optimization solution by designing the dual redundancy warm-standby module of the mission computer and I/O port,the algorithm of selecting output path of the mission computer in network nodes,the decision-making algorithm upon the on-duty host and output,and the video output decision-making algorithm upon the upper ***,the complete process of operational data from the input to output and the opposite is implemented well to guarantee the overall availability of network nodes in the *** has great advantages of wide applicability,strong reliability and high real-time switching speed.

关键词： reliability amphibious combat simulation system architecture dual redundancy decision-making algorithm

Biased Bi-Population Evolutionary Algorithm for Energy-Efficient Fuzzy Flexible Job Shop Scheduling with Deteriorating Jobs

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Complex System Modeling and Simulation 2024年第1期4卷 15-32页

作者： Libao Deng Yingjian Zhu Yuanzhu Di lili zhang School of Information Science and Engineering Harbin Institute of TechnologyWeihai 264209China. Department of Computer Science Maynooth UniversityMaynoothW23 F2H6 the School of Computing Dublin City UniversityDublinD09 V209Ireland.

There are many studies about flexible job shop scheduling problem with fuzzy processing time and deteriorating scheduling,but most scholars neglect the connection between them,which means the purpose of both models is to simulate a more realistic factory *** this perspective,the solutions can be more precise and practical if both issues are considered ***,the deterioration effect is treated as a part of the fuzzy job shop scheduling problem in this paper,which means the linear increase of a certain processing time is transformed into an internal linear shift of a triangle fuzzy processing *** from that,many other contributions can be stated as follows.A new algorithm called reinforcement learning based biased bi-population evolutionary algorithm(RB2EA)is proposed,which utilizes Q-learning algorithm to adjust the size of the two populations and the interaction frequency according to the quality of population.A local enhancement method which combimes multiple local search stratgies is *** interaction mechanism is designed to promote the convergence of the *** experiments are designed to evaluate the efficacy of RB2EA,and the conclusion can be drew that RB2EA is able to solve energy-efficient fuzzy flexible job shop scheduling problem with deteriorating jobs(EFFJSPD)efficiently.

关键词： bi-population evolutionary algorithm Q-learning algorithm fuzzy deteriorating effect energy flexible job shop scheduling

Responses of microbial interactions to elevated salinity in activated sludge microbial community

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Frontiers of Environmental Science & Engineering 2023年第5期17卷 93-103页

作者： Tao Ya Zhimin Wang Junyu Liu Minglu zhang lili zhang Xiaojing Liu Yuan Li Xiaohui Wang Beijing Engineering Research Center of Environmental Material for Water Purification College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China State Environmental Protection Key Laboratory of Food Chain Pollution Control Beijing Technology and Business UniversityBeijing 100048China Puyang Vocational and Technical College Puyang 457000China

Biological treatment processes are critical for sewage purification,wherein microbial interactions are tightly associated with treatment *** studies have focused on assessing how environmental factors(such as salinity)affect the diversity and composition of the microbial community but ignore the connections among ***,we described the microbial interactions in response to elevated salinity in an activated sludge system by performing an association network *** was found that higher salinity resulted in low microbial diversity,and small,complex,more competitive overall networks,leading to poor performance of the treatment *** of major phyla(Proteobacteria,Bacteroidetes,and Chloroflexi)and functional bacteria(such as AOB,NOB and denitrifiers)differed substantially under elevated salinity *** with subnetworks of Nitrosomonadaceae,Nitrosomonas(AOB)made a greater contribution to nitrification under higher salinity(especially 3%)in the activated sludge *** established more proportion of cooperative relationships with other bacteria to resist 3%salinity ***,identified keystone species playing crucial roles in maintaining process stability were dynamics and less abundant under salinity *** gleaned from this study deepened our understanding of microbial interaction in response to elevated salinity in activated sludge systems.

关键词： Elevated salinity Activated sludge system Pollution removal Microbial interactions Competitive relationship

Carbon-supported high-entropy Co-Zn-Cd-Cu-Mn sulfide nanoarrays promise high-performance overall water splitting

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Nano Research 2022年第7期15卷 6054-6061页

作者： Yuanting Lei lili zhang Wenjing Xu Chengli Xiong Wenxing Chen Xu Xiang Bing zhang Huishan Shang School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Energy&Catalysis Center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China

Transition metal sulfides with homogeneous multi-metallic elements promise high catalytic performance for water electrolysis owing to the unique structure and highly tailorable electrochemical *** existing synthetic routes require high temperature to ensure the uniform mixing of various elements,making the synthesis highly ***,for the first-time novel carbon fiber supported high-entropy Co-Zn-Cd-Cu-Mn sulfide(CoZnCdCuMnS@CF)nanoarrays are fabricated by the mild cation exchange *** from the synergistic effect among multiple metals and the strong interfacial bonding between high-entropy Co-Zn-Cd-Cu-Mn sulfide nanoarrays and the carbon fiber support,CoZnCdCuMnS@CF exhibits superior catalytic activity and stability toward overall water splitting in alkaline ***,CoZnCdCuMnS@CF only needs low overpotentials of 173 and 220 mV to reach the current density of 10 mA•cm^(−2),with excellent durability for over 70 and 113 h for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)*** importantly,the bifunctional electrode(CoZnCdCuMnS@CF||CoZnCdCuMnS@CF)for overall water splitting can deliver a small cell voltage of 1.63 V to afford 10 mA•cm^(−2) and exhibit outstanding stability of negligible decay after 73 h continuous *** work provides a viable synthesis route toward advanced high-entropy materials with great potential applications.

关键词： electrocatalysis high-entropy metal sulfides oxygen evolution reaction hydrogen evolution reaction low-temperature cation exchange

Synthesis of C1-symmetric primary-secondary diamines and their application in the enantioselective Henry reaction

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Frontiers of Chemical Science and Engineering 2013年第4期7卷 408-414页

作者： lili zhang Ming LIU Shijun MA Yaodong HUANG Yongmei WANG Key Laboratory of Systems Bioengineering Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China State Key Laboratory of Elemento-Organic Chemistry Department of Chemistry Nankai University Tianjin 300071 China

Two new Cl-symmetric primary-secondary diamines were synthesized via the reaction of （S,S）-1,2- diphenyl ethylene diamine with 3,5-ditert-butyl salicylal- dehyde and salicylaldehyde, respectively, followed by reduction with NaBH4. The combination of the ligand from 3,5-ditert-butyl salicylaldehyde with CuBr could effciently catalyze the Henry reaction to afford β- nitroalkanols in moderate to good yields （up to 87%） and high enantioselectivities （up to 88% ee）. A possible mechanism of the reaction was proposed.

关键词： enantioselective Henry reaction Cl-sym-metric diamines asymmetric reaction nitroalkanol

Oxidation and detection of L-cysteine using a modified Au/Nafion/glass carbon electrode

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Science China Chemistry 2011年第3期54卷 521-525页

作者： WANG XueJi zhang lili MIAO LiXiao KAN MeiXiu KONG LinLin zhang HuiMin School of Science Beijing Institute of Technology Beijing 100081 China

In this work,the electrochemical oxidation of L-cysteine(CySH)was investigated on a composite film modified electrode with Au nanoparticles dispersed in the fluorocarbon polymer(Nafion).The excellent electrocatalytic effect on CySH oxidation was attributed to the role of Au *** voltammetric studies revealed two anodic peaks for the oxidation of CySH in the pH range of 2.0–*** electrode was used to detect cysteine at pH 2.0 and pH *** pH 2.0,a determination range of 3.0–50.0?mol/L was obtained with the detection sensitivity of 22.7A/(mmol L1),while at pH 7.0,a determination range of 2.0–80.0mol/L was obtained with the detection sensitivity of 4.08A/(mmol L1).The detection limits were estimated to be as low as 1.0?mol/L at both pH 7.0 and pH ***,at pH 7.0,the interferences of ascorbic acid and uric acid were reduced for the detection of *** made the Au/Nafion/GC electrode a promising candidate for efficient electrochemical sensors for the detection of CySH.

关键词： L-cysteine composite film gold nanoparticles Nafion detection

Positively charged microporous ceramic membrane for the removal of Titan Yellow through electrostatic adsorption

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Journal of Environmental Sciences 2016年第6期28卷 204-212页

作者： Xiuting Cheng Na Li Mengfu Zhu lili zhang Yu Deng Cheng Deng College of Material Science and Chemical Engineering Tianjin University of Science and Technology Institute of Medical Equipment Academy of Military Medical Sciences

To develop a depth filter based on the electrostatic adsorption principle, positively charged microporous ceramic membrane was prepared from a diatomaceous earth ceramic *** internal surface of the highly porous ceramic membrane was coated with uniformly distributed electropositive nano-Y2O3 coating. The dye removal performance was evaluated through pressurized filtration tests using Titan Yellow aqueous solution. It showed that positively charged microporous ceramic membrane exhibited a flow rate of 421 L/（m^2·hr） under the trans-membrane pressure of 0.03 bar. Moreover it could effectively remove Titan Yellow with feed concentration of 10 mg/L between pH 3 to 8. The removal rate increased with the enhancement of the surface charge properties with a maximum rejection of 99.6%. This study provides a new and feasible method of removing organic dyes in wastewater. It is convinced that there will be a broad market for the application of charged ceramic membrane in the field of dye removal or recovery from industry wastewater.

关键词： Positively charged ceramic membrane Electrostatic adsorption Organic dyes Wastewater treatment

In-situ composite microstructure formation of immiscible alloy solidified in space

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National Science Review 2023年第2期10卷 88-90页

作者： Jiuzhou Zhao Hao Sun lili zhang Hongxiang Jiang Linjie Yang Jie He Shi-changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China

About one-third of alloys show a phase diagram with a miscibility gap in the liquid *** solidifications of these alloys proceed with a liquid-liquid decomposition and have great potential in the development of high-performance in-situ particulate composites,and composites with a core/shell ***,these alloys generally show a phase segregated microstructure when solidified on the *** the 1960s,

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