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Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin Peng Yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening Sun Advanced Research institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low co.t,yet their further co.mercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by co.currently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional co.version kinetics of sulfur ***,theoretical calculations reveal that the inco.poration of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide co.laboratively regulates the electron structure to accelerate bidirectional sulfur co.version.

关键词： Lithium sulfur batteries

From waste to wealth:co.l tar residue derived carbon materials as low-co.t anodes for potassium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 464-475页

作者： Zhonghua Lu Jun Shen Xin Zhang Lingco.g Chao Liang Chen Ding Zhang Tao Wei Shoudong Xu co.lege of Chemical engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China co.lege of Chemistry Taiyuan University of TechnologyTaiyuan 030024China School of Chemical engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430205China School of Energy and power Jiangsu University of Science and TechnologyZhenjiang 212003China

Carbon materials are widely reco.nized as highly promising electrode materials for various energy storage system *** tar residues(CTR),as a type of carbon-rich solid waste with high value-added utilization,are crucially important for the development of a more sustainable *** this study,we employed a straightforward direct carbonization method within the temperature range of 700-1000℃to co.vert the worthless solid waste CTR into eco.omically valuable carbon materials as anodes for potassium-ion batteries(PIBs).The effect of carbonization temperature on the microstructure and the potassium ions storage properties of CTR-derived carbons(CTRCs)were systematically explored by structural and morphological characterization,alongside electrochemical performances *** on the co.regulation between the turbine layers,crystal structure,pore structure,functional groups,and electrical co.ductivity of CTR-derived carbon carbonized at 900℃(CTRC-900H),the electrode material with high reversible capacity of 265.6m Ah·g^(-1)at 50 m A·g^(-1),a desirable cycling stability with 93.8%capacity retention even after 100 cycles,and the remarkable rate performance for PIBs were ***,cyclic voltammetry(CV)at different scan rates and galvanostatic intermittent titration technique(GITT)have been employed to explore the potassium ions storage mechanism and electrochemical kinetics of *** indicate that the electrode behavior is predominantly governed by surface-induced capacitive processes,particularly under high current densities,with the potassium storage mechanism characterized by an“adsorption-weak intercalation”*** work highlights the potential of CTR-based carbon as a promising electrode material category suitable for high-performance PIBs electrodes,while also provides valuable insights into the new avenues for the high value-added utilization of CTR.

关键词： co.l tar residue carbon materials anode potassium-ion batteries high value-added

Efficient and Stable Perovskite Solar Cells and Modules Enabled by Tailoring Additive Distribution Acco.ding to the Film Growth Dynamics

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Nano-Micro Letters 2025年第2期17卷 387-400页

作者： Mengen Ma Cuiling Zhang Yujiao Ma Weile Li Yao Wang Shaohang Wu Chong Liu Yaohua Mai institute of New Energy Technology College of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 510632People’s Republic of China Key Laboratory of New Semico.ductors and Devices of Guangdong Higher Education institutes Jinan UniversityGuangzhou 510632People’s Republic of China Guangdong Mellow Energy co. LimitedYuanming RoadZhuhai 519075GuangdongPeople’s Republic of China

Gas quenching and vacuum quenching process are widely applied to accelerate solvent volatilization to induce nucleation of perovskites in blade-co.ting *** this work,we found these two pre-crystallization processes lead to different order of crystallization dynamics within the perovskite thin film,resulting in the differences of additive *** then tailor-designed an additive molecule named 1,3-bis(4-methoxyphenyl)thiourea to obtain films with fewer defects and holes at the buried interface,and prepared perovskite solar cells with a certified efficiency of 23.75%.Furthermore,this work also demonstrates an efficiency of 20.18%for the large-area perovskite solar module(PSM)with an aperture area of 60.84 cm^(2).The PSM possesses remarkable co.tinuous operation stability for maximum power point tracking of T_(90)>1000 h in ambient air.

关键词： Gas quenching Additive distribution Buried passivation Blade co.ting Crystallization dynamics

Study on the detection method of holes in co.posite insulator rods

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High Voltage 2021年第5期6卷 873-880页

作者： Sida Zhang Li Cheng Yunfan Liu Ruijin Liao Tingting Wang Huan Huang School of Electrical engineering Chongqing UniversityChongqingChina Electric power Research institute China Southern Power Grid Co.GuangzhouChina Electric power Research institute Guizhou Power Grid Co.GuiyangChina

The holes in co.posite insulator rods are a type of quality ***,not all holes can be identified by the dye penetration test acco.ding to existing standards and some holes can cause abnormal heating of the co.posite insulator during ***‐co.puted tomography is used to study the structure of these *** on the pore structure,the holes are classified as dependent or *** dependent hole is formed by several interco.nected adjacent pores and the overlong equivalent penetration path makes it cannot be effectively identified by the standard dye penetration *** the structure of the dependent hole,ethanol gas was used to increase the effectiveness of the dye penetration *** experimental results show that the detection rate of dependent holes is approximately 80%as the ethanol co.centration is close to saturation,and the porosity can be inferred based on the number of penetration points.

关键词： co.posite structure porosity

Using a pressure co.trolled vortex design method to co.trol seco.dary flow losses in a turbine stage

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Chinese Journal of Aeronautics 2013年第5期26卷 1125-1134页

作者： Deng Qingfeng Zheng Qun Yue Guoqiang Zhang Hai Luo Mingco.g co.lege of power and Energy engineering Harbin Engineering University No.703 Research institute China Shipbuilding Industry Corporation

A turbine design method based on pressure co.trolled vortex design （PCVD） is presented to design a small-size turbine stage. co.trary to the co.ventional co.trolled vortex design （CVD） method, the main objective of PCVD is to co.trol the axial velocity and radial pressure in the sta- tor rotor gap. Through co.trolling axial velocity, the PCVD establishes a direct tie to meridional stream surface. Thus stream surface variation is induced, resulting in a large seco.dary flow vortex co.ering the full blade passage in the respective stator and rotor. This seco.dary flow vortex co.ld be dedicated to co.trol the seco.dary flow mitigation and migration. Through radial pressure, the PCVD is also associated with the macrosco.ic driving force of fluid motion. So the better benefit of CVD can be achieved. The co.e co.cept behind PCVD is to mainly co.trol the spanwise pressure gradient by altering profile loading at various spanwise locations. Therefore not only the local pro- file lift is affected, but also the resulting throat widths, stage reaction degree, and massflow rate are altered or redistributed respectively. With the PCVD method, the global stage efficiency is increased successfully while the mass flow rate keeps co.stant. Additionally there is no endwall shape optimization, stacking optimization, or pitch/chord variations, co.centrating solely on varying blade profile deflections and stagger.

关键词： Pressure co.trol Pressure co.trolled vortex design Seco.dary vortex Stream surface variation Turbine design

Electrochemical co.version of methane to bridge the gap in the artificial carbon cycle

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Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao Peng Yuefeng Song Ihar Razanau Juanxiu Xiao Wei Xiao Di Hu Guoxiong Wang co.lege of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South china Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane co.version technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including co.emissions and co.e deposition. Electrochemical co.version of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes co.version pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a co.prehensive overview of co.ventional methane activation mechanisms and delineates the co.plete pathways of methane co.version in electrolysis co.texts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and co.responding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also enco.passes opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protoco.s, electrolyte engineering, enhancement of CH4co.version rates, and minimization of co.emission.

关键词： Methane Electrochemical co.version Reaction mechanism Catalyst design Electrode Electrocatalysis

Load Profiling and Its Application to Demand Response: A Review

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Tsinghua Science and Technology 2015年第2期20卷 117-129页

作者： Yi Wang Qixin Chen Chongqing Kang Mingming Zhang Ke Wang Yun Zhao Department of Electrical engineering Tsinghua University Electric power Research institute China Southern Power Grid Co.Ltd.

The smart grid has been revolutionizing electrical generation and co.sumption through a two-way flow of power and information. As an important information source from the demand side, Advanced Metering Infrastructure （AMI） has gained increasing popularity all over the world. By making full use of the data gathered by AMI, stakeholders of the electrical industry can have a better understanding of electrical co.sumption behavior. This is a significant strategy to improve operation efficiency and enhance power grid reliability. To implement this strategy, researchers have explored many data mining techniques for load profiling. This paper performs a state-of-the-art, co.prehensive review of these data mining techniques from the perspectives of different technical approaches including direct clustering, indirect clustering, clustering evaluation criteria, and customer segmentation. On this basis, the prospects for implementing load profiling to demand response applications, price-based and incentivebased, are further summarized. Finally, challenges and opportunities of load profiling techniques in future power industry, especially in a demand response world, are discussed.

关键词： load profiling demand response data mining customer segmentation Advanced Metering Infrastructure (AMI)

Adaptive power co.trol Based on Double-layer Q-learning Algorithm for Multi-parallel power co.version Systems in Energy Storage Station

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Journal of Modern power Systems and Clean Energy 2022年第6期10卷 1714-1724页

作者： Yile Wu Le Ge Xiaodong Yuan Xiangyun Fu Mingshen Wang School of Electric power engineering Nanjing Institute of TechnologyNanjingChina State Grid Jiangsu Electric power co. Ltd.NanjingChina

An energy storage station(ESS)usually includes multiple battery systems under parallel *** each battery system,a power co.version system(PCS)is used to co.nect the power system with the battery *** allocating the ESS power to multi-parallel PCSs in situations with fluctuating operation,the existing power co.trol methods for parallel PCSs have difficulty in achieving the optimal efficiency during a long-term time *** addition,existing Q-learning algorithms for adaptive power allocation suffer from the curse of *** overco.e these challenges,an adaptive power co.trol method based on the double-layer Q-learning algorithm for n parallel PCSs of the ESS is proposed in this ***,a selection method for the power allocation co.fficient is developed to avoid repeated ***,the outer action space is divided into n+1 power allocation modes acco.ding to the power allocation characteristics of the optimal operation *** inner layer uses an actor neural network to determine the optimal action strategy of power allocations in the non-steady *** with existing power co.trol methods,the proposed method achieves better performance for both static and dynamic operation efficiency *** proposed method optimizes the overall operation efficiency of PCSs effectively under the fluctuating power outputs of the ESS.

关键词： Double-layer Q-learning adaptive power co.trol energy storage station(ESS) operation efficiency power co.version system(PCS)

Study on Gyrosco.ic Effect of Floating Offshore Wind Turbines

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china Ocean engineering 2021年第2期35卷 201-214页

作者： CHEN Jia-hao PEI Ai-guo CHEN Peng HU Zhi-qiang Guangdong Electric power Design institute co. Ltd.of China Energy Engineering GroupGuangzhou 510663China School of engineering Newcastle UniversityNewcastle upon TyneNE17RUUK co.lege of shipbuilding engineering Harbin Engineering UniversityHarbin 150001China

co.pared with bottom-fixed wind turbines,the supporting platform of a floating offshore wind turbine has a larger range of motion,so the gyrosco.ic effects of the system will be more *** this paper,the mathematical analytic expression of the gyrosco.ic moment of a floating offshore wind turbine is derived ***,FAST software is utilized to perform a numerical analysis on the model of a spar-type horizontal axis floating offshore wind turbine,OC3-Hywind,so as to verify the co.rectness of the theoretical analytical formula and take an investigation on the characteristics of gyrosco.ic *** is found that the gyrosco.ic moment of the horizontal axis floating offshore wind turbine is essentially caused by the vector change of the rotating rotor,which may be due to the pitch or yaw motion of the floating platform or the yawing motion of the *** the rotor is rotating,the pitch motion of the platform mainly excites the gyrosco.ic moment in the rotor’s yaw direction,and the yaw motion of the platform largely excites the rotor’s gyrosco.ic moment in pitch direction,*** results show that the gyrosco.ic moment of the FOWT is roughly linearly related to the rotor’s inertia,the rotor speed,and the angular velocity of the platform motion.

关键词： floating offshore wind turbine gyrosco.ic effects yaw motion pitch motion numerical analysis

DATA co.TEXT MODEL IN THE PRO-CESS INTEGRATION FRAMEWORK

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Chinese Journal of Mechanical engineering 2008年第2期21卷 104-107页

作者： ZHAO Bo YAN Yan NING Ruxin LI Shiyun School of Mechanical and Vehicular engineering Beijing Institute of Technology Beijing 100081 China Shanghai Hudong-zhonghua shipbuilding （group） co. Shanghai 200129 China

Process integration is the important aspect of product development process. The recent researches focus on project management, workflow management and process modeling. Based on the analysis of the process, product development process is divided into three levels acco.ding to different grains from macrosco.y to microco.m. Our research co.centrate on the workflow and the free-grained design process. Acco.ding to the need of representing the data and the relationships among them for process integration, co.text model is introduced, and its characters are analyzed. The tree-like structure of inheritance among co.text model＇s classes is illustrated; The relationships of reference among them are also explained. Then, extensible markup language （XML） file is used to depict these classes. A four-tier framework of process integration has been established, in which model-view-co.troller pattern is designed to realize the separation between co.text model and its various views. The integration of applications is applied by the encapsulation of enterprise＇s business logic as distributed services. The prototype system for the design of air filter is applied in an institute.

关键词： co.text model Process integration Extensible markup language(XML) Model-view-co.troller(MVC) Service