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Journal of Energy Chemistry 2022年第9期31卷 56-72,I0003页

作者： minmin wang Hui Zhang Yunqi Liu Yuan Pan State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580ShandongChin

The development and utilization of renewable clean energy can effectively solve the two major problems of energy and environment. As an efficient power generation device that converts hydrogen energy into electric energy, fuel cell has attracted more and more attention. For fuel cells, the oxygen reduction reaction(ORR) at the cathode is the core reaction, and the design and development of high-performance ORR catalysts remain quite challenging. Since the microenvironment of the active center of single atom catalysts(SACs) has an important influence on its catalytic performance, it has been a research focus to improve the ORR activity and stability of electrocatalysts by adjusting the structure of the active center through reasonable structural regulation methods. In this review, we reviewed the preparation and structure–activity relationship of SACs for ORR. Then, the structural precision regulation methods for improving the activity and stability of ORR electrocatalysts are discussed. And the advanced in-situ characterization techniques for revealing the changes of active sites in the electrocatalytic ORR process are summarized. Finally, the challenges and future design directions of SACs for ORR are discussed. This work will provide important reference value for the design and synthesis of SACs with high activity and stability for ORR.

关键词： Electrocatalyst Oxygen reduction reaction Structure regulation Single atom catalysts In-situ characterization technique

Numerical investigation on adiabatic film cooling effectiveness and heat transfer coefficient for effusion cooling over a transverse corrugated surface

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Chinese Journal of Aeronautics 2017年第2期30卷 677-684页

作者： Qu Lihong Zhang Jingzhou Tan Xiaoming wang minmin College of Energy and Power Engineering Jiangsu Province Key Laboratory of Aerospace Power System Nanjing University of Aeronautics and Astronautics Nanjing 210016 China Collaborative Innovation Center of Advanced Aero-Engine Beijing 100083 China

Three-dimensional numerical computations are conducted to investigate the effects of the blowing ratio and corrugation geometry on the adiabatic film cooling effectiveness as well as the heat transfer coefficient over a transverse corrugated *** is noticeable that the adiabatic wall temperature on the wavy valley of the transverse corrugated surface is relatively lower than that on the wavy *** corrugation has a relatively obvious influence on the laterallyaveraged adiabatic film cooling effectiveness in the region where the effusion film layer is developed,but has little influence in the front *** to a flat surface,the transverse corrugated surface produces a smaller adiabatic film cooling effectiveness and a higher heat transfer coefficient *** effusion cooling difference between the flat and corrugated surfaces behaves more obviously under a small aspect ratio of the wavy corrugation.

关键词： Adiabatic film cooling effectiveness Effusion cooling Heat transfer Numerical computation Transverse corrugated surface

Diverse roles of SERK family genes in plant growth, development and defense response.

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Science China(Life Sciences) 2016年第9期59卷 889-896页

作者： Min Fan minmin wang Ming-Yi Bai Key Laboratory of Plant Cell Engineering and Germplasm Innovation Ministry of Education School of Life Sciences Shandong University

Plant receptor-like protein kinases(RLKs) are transmembrane proteins with an extracellular domain and an intracellular kinase domain, which enable plant perceiving diverse extracellular stimuli to trigger the intracellular signal transduction. The somatic embryogenesis receptor kinases(SERKs) code the leucine-rich-repeat receptor-like kinase(LRR-RLK), and have been demonstrated to associate with multiple ligand-binding receptors to regulate plant growth, root development, male fertility, stomatal development and movement, and immune responses. Here, we focus on the progress made in recent years in understanding the versatile functions of Arabidopsis SERK proteins, and review SERK proteins as co-receptor to perceive different endogenous and environmental cues in different signaling pathway, and discuss how the kinase activity of SERKs is regulated by various modification.

关键词： RLK SERK signal transduction

Structural regulation of single-atomic site catalysts for enhanced electrocatalytic CO_(2)reduction

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Nano Research 2022年第6期15卷 4925-4941页

作者： minmin wang Min Li Yunqi Liu Chao Zhang Yuan Pan State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580China MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China

Electrocatalytic CO_(2)reduction reaction(CO_(2)RR)is considered an efficient way to convert CO_(2)into high-value-added chemicals,and thus is of significant social and economic *** single-atomic site catalysts(SASCs)generally have excellent selectivity because of their 100%atomic utilization and uniform structure of active sites,and thus promise a broad range of ***,SASCs still face challenges such as low intrinsic activity and low density of active *** regulation of the microstructures of SASCs is an effective method to improve their CO_(2)RR performance and to obtain deep reduction *** this article,we systematically summarize the current research status of SASCs developed for highly efficient catalysis of CO_(2)RR,discuss the various structural regulation methods for enhanced activity and selectivity of SASCs for CO_(2)RR,and review the application of in-situ characterization technologies in the SASC-catalyzed CO_(2)*** then discuss the problems yet to be solved in this area,and propose the future directions of the research on the design and application of SASCs for CO_(2)RR.

关键词： Electrocatalysis single-atomic site catalyst structure regulation active site carbon dioxide reduction reaction

Model predictive control of grid-connected PV power generation system considering optimal MPPT control of PV modules

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Protection and Control of Modern Power Systems 2021年第1期6卷 407-418页

作者： Yingying Zhao Aimin An Yifan Xu Qianqian wang minmin wang College of Electrical and Information Engineering Lanzhou University of TechnologyLanzhou730050GansuChina Key Laboratory of Gansu Advanced Control for Industrial Processes Lanzhou730050GansuChina National Demonstration Center for Experimental Electrical and Control Engineering Education Lanzhou University of TechnologyLanzhou730050GansuChina

Because of system constraints caused by the external environment and grid faults,the conventional maximum power point tracking(MPPT)and inverter control methods of a PV power generation system cannot achieve optimal power *** can also lead to misjudgments and poor dynamic *** address these issues,this paper proposes a new MPPT method of PV modules based on model predictive control(MPC)and a finite control set model predictive current control(FCS-MPCC)of an *** the identification model of PV arrays,the module-based MPC controller is designed,and maximum output power is achieved by coordinating the optimal combination of spectral wavelength and module *** FCS-MPCC algorithm is then designed to predict the inverter current under different voltage vectors,the optimal voltage vector is selected according to the optimal value function,and the corresponding optimal switching state is applied to power semiconductor devices of the *** MPPT performance of the MPC controller and the responses of the inverter under different constraints are verified,and the steady-state and dynamic control effects of the inverter using FCS-MPCC are compared with the traditional feedforward decoupling PI control in Matlab/*** results show that MPC has better tracking performance under constraints,and the system has faster and more accurate dynamic response and flexibility than conventional PI control.

关键词： Grid-connected PV power generation system Model predictive control Maximum power point tracking Inverter Optimal value function

Pd/Ag nanosheet as a plasmonic sensing platform for sensitive assessment of hydrogen evolution reaction in colloid solutions

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Nano Research 2018年第4期11卷 2093-2103页

作者： minmin wang Ping wang Jie Zhang Hui Hou Chuanping Li Yongdong Jin State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China University of Chinese Academy of Sciences Beijing 100049 China

A nanoplasmonic hydrogen-sensing system based on palladium/silver nanosheets （Pd/Ag NSs） was developed and used for sensitive assessment of the hydrogen evolution reaction （HER） in colloid solutions. As a model HER system, the semiconductor CdS/CdSe core/shell quantum dot （QD）-based hydrogen-producing colloidal system was used, and the HER performances of QDs with two different surface coatings were assessed in this study. In the sensing system, the photocatalytically generated hydrogen reacts with Pd/Ag NSs, resulting in a gradual red-shift of localized surface plasmon resonance, which to a certain degree is almost linearly proportional to the amount of hydrogen generated. Such a nanoplasmonic hydrogen sensing platform would be useful as an alternative for optical assessment and fast selection of a highly efficient and cost-effective solar hydrogen generation system for practical applications.

关键词： plasmonic nanoparticles,hydrogen evolution reaction sensing,colloid solution

Bifunctional plasmonic colloidosome/graphene oxidebased floating membranes for recyclable high-efficiency solar-driven clean water generation

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Nano Research 2018年第7期11卷 3854-3863页

作者： minmin wang Jie Zhang Ping wang Chuanping Li Xiaolong Xu Yongdong Jin State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China University of Chinese Academy of Sciences Beijing 100049 China

Utilizing plasmonic nano-particles/structures for solar water evaporation has aroused increasing interest; however, large-scale methods are desired to boost the efficiency and improve the practicality of solar steam generation. We developed a membrane-supported floating solar steam generation system based on graphene oxide and a multiscale plasmonic nanostructure; the latter is a micrometer-sized colloidosome that was assembled from hollow and porous Ag/Au nanocubes. By taking advantage of multiscale plasmonic coupling of the particles, an extremely high solar thermal conversion efficiency up to 92% at 10 kW·m^-2 （with a water evaporation rate reaching 12.96 kg·m^-2·h^-1） can be achieved. The TiO2 nanoparticle-modified floating system is also capable of high-efficiency dye degradation in organic-polluted water, rendering such a membrane system recyclable and scalable for practical and versatile solar-driven generation of clean water.

关键词： plasmonic photothermal recyclable steam generation dye degradation

In-situ construction of N-doped carbon nanosnakes encapsulated FeCoSe nanoparticles as efficient bifunctional electrocatalyst for overall water splitting

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Journal of Energy Chemistry 2022年第5期31卷 699-708页

作者： Yuan Pan minmin wang Min Li Guangxun Sun Yinjuan Chen Yunqi Liu Wei Zhu Bin wang State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580ShandongChina Key Laboratory of Advanced Catalytic Materials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou UniversityChangzhou 213164JiangsuChina State Key Lab of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China School of Chemistry and Chemical Engineering Shaanxi Normal UniversityXi’an 710119ShaanxiChina

The development of bifunctional electrocatalysts with high activity and stability for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)is crucial for efficient overall water splitting but still ***,we propose a facile and effective polymerization–pyrolysis–selenization(PPS)strategy for in-situ synthesis of N-doped carbon nanosnakes(NCNSs)encapsulated Fe-doped CoSe nanoparticles(NPs)derived from predesigned trimetallic Zn/Fe/Co polyphthalocyanine conjugated polymer *** from the synergistic effect between the regulation of Fe atoms and CoSe NPs as well as the confinement effect of in situ formed porous conductive carbon nanosnakes,the FeCoSe@NCNSs catalyst exhibited the excellent electrocatalytic activity for HER with small overpotentials(142 and 99 mV in 0.5 M H_(2)SO_(4) and 1 M KOH)and OER(320 mV in 1 M KOH)at the current density of 10 mA cm^(-2).Particularly,it also can be used as an efficient bifunctional electrocatalyst with a cell voltage of 1.66 V to achieve a current density of 10 mA cm^(-2) and superior stability for overall water *** functional theory study reveals that the doping of Fe atoms on Co Se enhanced the splitting and delocalization of metal-d orbitals close Fermi level,and modifies the distribution of Se-p orbitals close Fermi level,which improved the flexibility of electron donor-acceptor system and the hydrogen adsorption free energy change on metal-metal bridge sites in FeCoSe@***,beneficial from the accepting of Fe-Se bridge site,the overpotential of OER which following intramolecular oxygen coupling mechanism is also decreased,thus accelerating the electrocatalytic *** work presents a novel strategy to regulate the activity and stability of transition metal selenides and facilitating the rational design of bifunctional electrocatalysts for overall water splitting applications.

关键词： FeCoSe nanoparticles N-doped carbon nanosnakes Bifunctional electrocatalyst Synergistic effect Water splitting

Crystal Growth and Characterization of Fluorinated Perylene Diimides

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Chemical Research in Chinese Universities 2014年第1期30卷 63-67页

作者： HUANG Jiachi LI Hanying MO Xiong SHI minmin wang Mang CHEN Hongzheng State Key Laboratory of Silicon Materials Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P. R. China

One-dimensional crystals of fluorinated perylene diimides were achieved by the self-assembly of them via solvent-nonsolvent *** π-conjugated fluorinated perylene diimides were assembled into highly-ordered nanostructures of well-defined morphologies in organic solvents due to the π-π interaction between the aromatic *** was found that with more introduced F atoms,perylene diimides showed remarkably improved solubility and thus were much easier to grow into crystals,due to the increased polarity induced by the strong electron-withdrawing F *** importantly,single crystal of N,N＇-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide（DPFPP）was obtained,and the unit cell-dimensions of triclinic structure were determined by the selected area electron diffraction（SAED） pattems to be a=0.712 nm,b=1.072 nm,c=2.914 nm,a=97.0°,β=89.6°,γ=93.4°.Owing to most of the longest c-axis orienting nearly vertically to the long axis of the needle crystal,the molecular planes are expected to be vertical to the needle axis.

关键词： Perylene diimide Fluorination Crystal growth

Single-atomic Mn sites coupled with Fe_(3)C nanoparticles encapsulated in carbon matrixes derived from bimetallic Mn/Fe polyphthalocyanine conjugated polymer networks for accelerating electrocatalytic oxygen reduction

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Nano Research 2022年第9期15卷 7976-7985页

作者： Yuan Pan Min Li Wanliang Mi minmin wang Junxi Li Yilin Zhao Xuelu Ma Bin wang Wei Zhu Zhiming Cui Hailiang Yin Yunqi Liu State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China Research Institute of Petroleum Processing SinopecBeijing 100083China School of Chemical&Environmental Engineering China University of Mining&TechnologyBeijing 100083China School of Chemistry and Chemical Engineering Shaanxi Normal UniversityXi’an 710119China State Key Lab of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of TechnologyGuangzhou 510641China Academy of Science&Technology China University of Petroleum(East China)Dongying 257061China

The construction of robust coupling catalysts for accelerating electrocatalytic oxygen reduction reaction(ORR)through the modulation of the electronic structure and local atomic configuration is critical but remains ***,we report a facile and effective isolation-polymerization-pyrolysis(IPP)strategy for high-precision synthesis of single-atomic Mn sites coupled with Fe_(3)C nanoparticles encapsulated in N-doped porous carbon matrixes(Mn SAs/Fe_(3)C NPs@NPC)catalyst derived from predesigned bimetallic Fe/Mn polyphthalocyanine(FeMn-BPPc)conjugated polymer networks by solid-phase reaction *** from the synergistic effects between the single-atomic Mn-N_(4)sites and Fe_(3)C NPs as well as the confinement effect of NPC,the Mn SAs/Fe_(3)C NPs@NPC catalyst exhibited excellent electrocatalytic activity and stability for *** assembled Znair battery displayed larger power density of 186 mW·cm^(−2)than that of Pt/C+Ir/C-based *** also exhibits excellent stability without obvious voltage change after 106 cycles with 36 *** in-situ Raman spectra with in-situ attenuated total reflectance surface-enhanced infrared absorption spectroscopy(ATR-SEIRAS)characterization results indicated that the Mn-N_(4)site as an active site for the O_(2)adsorption-activation process,which effectively facilitates the generation of key*OOH intermediates and*OH desorption to promote the multielectron reaction *** calculation reveals that the excellent electrocatalytic performance originates from the charge redistribution and the d orbital shift resulting from Mn-Fe bond,which buffers the activity of ORR through the electron reservoir capable of electron donation or *** work paves a novel IPP strategy for constructing high-performance coupling electrocatalyst towards the ORR for energy conversion devices.

关键词： single atom catalyst nanoparticles electrocatalyst oxygen reduction zinc-air battery