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Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

Journal of energy Chemistry 2025年第1期100卷 730-738页

作者： Peng Zheng Wang Zhou Ying Mo Biao Zheng Miaomiao Han Qin Zhong Wenwen Yang Peng Gao Lezhi Yang Jilei Liu co.lege of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Greater Bay Area institute for Innovation Hunan University Changsha research institute of Mining & Metallurgy co. LTD.

Hard carbon （HC） has been co.sidered as promising anode material for sodium-ion batteries （SIBs）.The optimization of hard carbon’s microstructure and solid electrolyte interface （SEI） property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectrosco.y/electrochemical impedance spectrosco.y （FTIR/EIS） and X-ray photoelectron spectrosco.y （XPS） analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping co.tent exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： X ray photoelectron spectrosco.y

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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

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Multi-Stage Voltage co.trol Optimization Strategy for Distribution Networks co.sidering Active-Reactive co.Regulation of Electric Vehicles

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energy Engineering 2025年第1期122卷 221-242页

作者： Shukang Lyu Fei Zeng Huachun Han HuiyuMiao Yi Pan Xiaodong Yuan Electric Power research institute State Grid Jiangsu Electric Power Co.Ltd.Nanjing211103China

The high proportion of uncertain distributed power sources and the access to large-scale random electric vehicle(EV)charging resources further aggravate the voltage fluctuation of the distribution network,and the existing research has not deeply explored the EV active-reactive synergistic regulating characteristics,and failed to realize themulti-timescale synergistic co.trol with other regulatingmeans,For this reason,this paper proposes amultilevel linkage co.rdinated optimization strategy to reduce the voltage deviation of the distribution ***,a capacitor bank reactive power co.pensation voltage co.trol model and a distributed photovoltaic(PV)activereactive power regulationmodel are ***,an external characteristicmodel of EVactive-reactive power regulation is developed co.sidering the four-quadrant operational characteristics of the *** optimization model of the distribution network is then co.structed co.sidering the time-series co.pling co.straints of multiple types of voltage regulators.A multi-timescale co.trol strategy is proposed by co.sidering the impact of voltage regulators on active-reactive EV energy co.sumption and PV energy ***,a four-stage voltage co.trol optimization strategy is proposed for various types of voltage regulators with multiple time ***-objective optimization is solved with the improvedDrosophila algorithmto realize the power fluctuation co.trol of the distribution network and themulti-stage voltage co.trol *** results validate that the proposed voltage co.trol optimization strategy achieves the co.rdinated co.trol of decentralized voltage co.trol resources in the distribution *** effectively reduces the voltage deviation of the distribution network while ensuring the energy demand of EV users and enhancing the stability and eco.omic efficiency of the distribution network.

关键词： Electric vehicle(EV) distribution network multi-stage optimization active-reactive power regulation voltage co.trol

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Anomaly Detection of co.trollable Electric Vehicles through Node Equation against Aggregation Attack

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co.puters, Materials & co.tinua 2025年第1期82卷 427-442页

作者： Jing Guo Ziying Wang Yajuan Guo Haitao Jiang State Grid Jiangsu Electric Power co. Ltd.Research InstituteState Grid Corporation of ChinaNanjing211100China

The rapid proliferation of electric vehicle(EV)charging infrastructure introduces critical cybersecurity vulnerabilities to power grids *** study presents an innovative anomaly detection framework for EV charging stations,addressing the unique challenges posed by third-party aggregation *** approach integrates node equations-based on the parameter identification with a novel deep learning model,xDeepCIN,to detect abnormal data reporting indicative of aggregation *** employ a graph-theoretic approach to model EV charging networks and utilize Markov Chain Monte Carlo techniques for accurate parameter *** xDeepCIN model,inco.porating a co.pressed Interaction Network,has the ability to capture co.plex feature interactions in sparse,high-dimensional charging *** results on both proprietary and public datasets demonstrate significant improvements in anomaly detection performance,with F1-sco.es increasing by up to 32.3%for specific anomaly types co.pared to traditional methods,such as wide&deep and DeepFM(Factorization-Machine).Our framework exhibits robust scalability,effectively handling networks ranging from 8 to 85 charging ***,we achieve real-time monitoring capabilities,with parameter identification co.pleting within seco.ds for networks up to 1000 *** research co.tributes to enhancing the security and reliability of renewable energy systems against evolving cyber threats,offering a co.prehensive solution for safeguarding the rapidly expanding EV charging infrastructure.

关键词： Anomaly detection electric vehicle aggregation attack deep cross-network

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Laser assisted phase transformation of carbon-based transition metal oxide electrode for high-performance supercapacitor application

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Science China Chemistry 2025年

作者： Mingzhen Xiu Jianghong Zhang Yu Lu Xun Cao Kang Huang Siyu Zhu Bowei Zhang Yu Liang Chunwang Zhao Junsheng Wu Yizhong Huang School of Materials Science and Engineering Nanyang Technological University energy research institute Interdisciplinary Graduate Programme Nanyang Technological University institute of Sustainability for Chemicals Energy and Environment Agency for Science Technology and ResearchSingapore institute of Advanced Materials and technology University of Science and Technology Beijing School of Materials Science and technology Shenyang University of Chemical Technology School of Materials Science and Hydrogen energy Foshan University

Transitional metal oxides have a wide range of applications due to their superior *** enhanced performance of metal oxide relies on their desirable oxidation states,which is challenging to achieve and requires co.plex *** study demonstrates a facile strategy enabling rapid phase transformation of transition metal *** approach involves synthesis of a tetragonal Mn3O4/carbon cloth co.posite using the liquid plasma discharge deposition （LPDD） technique,followed by laser irradiation with the presence of ethylene glyco. under an N2gas *** resulting face-centered cubic MnO/carbon cloth electrode exhibits an excellent capacitance of 1,125 F g-1at 2 A g-1,with remarkable capacitance retention of 95%after10,000 *** approach can be extended to other transition metals including co.Cu,Cr,Fe,Ni,and *** simulations reveal the significance of ethylene glyco. and the underlying mechanism associated with the phase transformation of transition metal *** present study offers a powerful technique for the phase transformation of transition metal oxide which can guide the development of new electrode materials with enhanced electrochemical properties for high-performance energy storage applications.

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Amperometric Gluco.e Sensor Based on Batch CuO-Modified Screen-Printed Silver-Carbon Electrodes

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Journal of Wuhan University of technology(Materials Science) 2025年第1期40卷 35-41页

作者： XIA Haiyan HUANG Yin YANG Hua WANG Xintian SHI Jianping LIU Lixia FU Yacheng QUAN Changyun LI Suyuan co.oe Medical technology co.pany Limited Changsha 410000China institute of new energy Hexi UniversityZhangye 734000China Chemistry and Chemical Engineering Central South UniversityChangsha 410000China

CuO nanoparticles were successfully synthesized via a two-jet electrospun method,and then screen-printed on silver-carbon electrodes,forming CuO-modified Ag-C(CuO/Ag-C)disposable strip *** natural environment co.dition for gluco.e detection,the obtained CuO/Ag-C electrodes show a high sensitivity of 540 nA·mM^(-1)·cm^(-2),and a low limit of detection(0.68 mM)in a wide linear response range of 0.68 mM and 3 mM(signal/noise=3),*** addition,the CuO/Ag-C electrodes also exhibit excellent anti-interference,air stability and *** a result,the fabrication of CuO nanoparticles via an electrospun process and the technique of screen-printed electrodes are of great significance for gluco.e detection.

关键词： electrochemical sensor CuO nanoparticles gluco.e detection screen-printing technique

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Boosting bidirectional sulfur co.version enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

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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

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Growth behavior and electronic regulation of Pt on various Mo-based supports for hydrogen evolution electrocatalysis

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Science China Chemistry 2025年

作者： Lulu Chen Yichao Huang Jiajun Wang Meihong Liao Zhiyuan Liu Meiqi Liu Hanqing Cai Lin Wang Lidong Gao Dawei Hu Lianming Zhao Ning Pu Zhuangjun Fan State Key Laboratory of Chemical Safety School of Materials Science and Engineering China University of Petroleum (East China) School of Mechanical and Electronic Engineering Qingdao Binhai University Qingdao Chuangqi new energy Catalysis technology co.Ltd. Sinopec research institute of Petroleum Processing co.Ltd. institute of energy Hefei Comprehensive National Science Center

Insight into the growth behavior and electronic regulation of platinum （Pt） on various transition metal supports is paramount in developing high-performing electrocatalysts for hydrogen evolution reactions （HER）.Herein,we studied the influence of molybdenum-based supports （MoX,X=C,N,P,and S） on the growth behavior and electronic regulation of *** found that the formation energy variations between Pt single atom and clusters on MoX supports play a pivotal role in the growth behavior of ***,the electronic regulation of Pt induced by metal-support interaction may reflect the valence changes of Pt in Pt-MoX/*** Pt-MoC/C catalyst with a moderate valence state of Pt exhibits the best HER activity with an overpotential of 12.0 mV at 10 mA cm-2and a mass activity of 27.1 A mgPt-1,12.3 times as high as that of co.mercial 20 wt% Pt/*** work provides co.structive guidance for the design of high-performance HER catalysts.

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co.CPP integrates with BiOBr microspheres for improved solar-driven co.(2)reduction performance

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Green energy & Environment 2025年第1期10卷 193-202页

作者： Lina Li Yi Zhang Gaopeng Liu Tiange Wei Junze Zhao Bin Wang Mengxia Ji Yuanbin She Jiexiang Xia Huaming Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu University301 Xuefu RoadZhenjiang212013China State Key Laboratory Breeding Base of Green Chemistry-Synthesis technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China

co.(2) photoreduction into carbon-based chemicals has been co.sidered as an appropriate way to alleviate the energy issue and greenhouse ***,the 5,10,15,20-tetra(4-carboxyphenyl)porphyrin co.alt(II)(co.CPP)has been integrated with BiOBr microspheres and formed the co.CPP/BiOBr *** as-prepared co.CPP/BiOBr-2 co.posite shows optimized photocatalytic performance for co.(2) co.version into co.and CH_(4) upon irradiation with 300 W Xe lamp,which is 2.03 and 2.58 times co.pared to that of BiOBr,*** introduced co.CPP significantly enhanced light absorption properties,promoted rapid separation of photogenerated carriers and boosted the chemisorption of co.(2) *** metal co.(2+) at the center of the porphyrin molecules also acts as adsorption center for co.(2) molecules,accelerating the co.(2) co.version into co.and *** possible mechanism of co.(2) photoreduction was explored by in-situ FT-IR *** work offers a new possibility for the preparation of advanced photocatalysts.

关键词： BiOBr co.CPP co.(2)photoreduction Carriers transfer co.(2)adsorption-activation

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co.trollably elevating the initial co.lombic efficiency of Li3VO4 anode via a facile electrode pre-lithiation technique for lithium-ion batteries

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Science China Chemistry 2025年

作者： Haoyue Liang Xingguo Zhong Guxin Huang Wenpan Liu Yao Liu Shuhao Wang Deyu Wang Hao Liu Hao Wang Tianyou Zhai Huiqiao Li State Key Laboratory of Materials Processing and Die & Mould technology School of Materials Science and Engineering Huazhong University of Science and Technology Shenzhen research institute of Huazhong University of Science and technology Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education) School of Optoelectronic Materials &Technology Jianghan University Centre for Clean energy technology Faculty of Science University of Technology Sydney Yichang Brunp Recycling technology co. Ltd.

Li3VO4has been a promising insertion anode material for Li-ion batteries,which has high theoretical capacity (up to～600 mAh g-1) and safe Li insertion voltage （0.5–1 V ***/Li+）.However,the low initial co.lombic efficiency （ICE） has always been the bottleneck limiting its ***,we propose a facile pre-lithiation method to co.trollably elevate the ICE by the post-treatment of the prepared Li3VO4co.posite electrode based on an immersion *** this process,the whole electrode was immersed in the liquid Li source,via which the ICE of the Li3VO4electrode can be co.trollably elevated from 80%to over 100%within 5 min of *** than the traditional powder treatment for pre-lithiation,this process we proposed minimizes the impact of pre-lithiation on the battery assembly ***,we further investigated the effect of this pre-lithiation process on the functional co.ponents in the *** the first time the ICE of Li3VO4electrode was elevated to 100%.As a result,the initial reversible capacity of LiFePO4||Li3VO4full cell was improved from 44.0 to146.3 m Ah g-1,demonstrating the feasibility and great potential of the process.

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