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Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong He Jie Peng Qingyun Lin Meng Li Weibin Chen Pei Liu Tao Huang Zhencheng Huang Yuying Liu Jiaojiao Deng Shenghua Ye Xuming Yang Xiangzhong Ren Xiaoping Ouyang Jianhong Liu Biwei Xiao Jiangtao Hu qianling zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and Technology FoshanGuangdong 528051People’s Republic of China College of Energy Engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105People’s Republic of China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

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Iridium photosensitizer constructed liposomes with hypoxia-activated prodrug to destrust hepatocellular carcinoma

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Chinese Chemical Letters 2023年第4期34卷 110-115页

作者： Shuangling Luo Chao Liang qianling zhang Pingyu zhang College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China

Hypoxic tumor microenvironment is a major challenge for photodynamic therapy(PDT). To overcome this problem, PDT combined hypoxia-activated chemotherapy is a promising strategy for hypoxic cancer therapy. Herein, a multifunctional liposome(AQ4N-Ir1-sorafenib-liposome) is prepared by encapsulating a hypoxia-activated prodrug AQ4N, a photosensitizer iridium(III) complex and hepatocellular carcinoma(HCC) targeting drug sorafenib, for synergistic therapy of HCC. Ir1-mediated PDT upon irradiation induces ROS generation and hypoxic environment, which leads to the disassembly of the liposome and activates the antitumor activity of AQ4N. Meantime, the co-delivered sorafenib could effectively target therapy of HCC. It is noted that ferroptosis mechanism is proved during the treatment. This work contributes to the design of hypoxia-responsive multifunctional liposome for combination of chemotherapy, targeting therapy and PDT. It is a promising strategy for hypoxic HCC therapy.

关键词： Hypoxia activation Iridium photosensitizer Ferroptosis Photodynamic therapy Chemotherapy

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Progress and perspective of single-atom catalysts for membrane electrode assembly of fuel cells

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Carbon Energy 2023年第7期5卷 38-56页

作者： Zhongxin Song Junjie Li qianling zhang Yongliang Li Xiangzhong Ren Lei zhang Xueliang Sun College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhenChina Department of Mechanical and Materials Engineering The University of Western OntarioLondonOntarioCanada

A fuel cell is an energy conversion device that can continuously input fuel and oxidant into the device through an electrochemical reaction to release electrical *** noble metals show good activity in fuel cell-related electrochemical reactions,their ever-increasing price considerably hinders their industrial *** of atom utilization efficiency is considered one of the most effective strategies to improve the mass activity of catalysts,and this allows for the use of fewer catalysts,saving greatly on the ***,single-atom catalysts(SACs)with an atom utilization efficiency of 100%have been widely developed,which show remarkable performance in fuel *** this review,we will describe recent progress on the development of SACs for membrane electrode assembly of fuel cell ***,we will introduce several effective routes for the synthesis of *** reaction mechanism of the involved reactions will also be introduced as it is highly determinant of the final ***,we will systematically summarize the application of Pt group metal(PGM)and nonprecious group metal(non-PGM)catalysts in membrane electrode assembly of fuel *** review will offer numerous experiences for developing potential industrialized fuel cell catalysts in the future.

关键词： fuel cells membrane electrode assembly oxygen reduction reaction reaction mechanism single-atom catalysts

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Hopf bifurcation of nonlinear system with multisource stochastic factors

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Theoretical & Applied Mechanics Letters 2023年第2期13卷 93-97页

作者： Xinyu Bai Shaojuan Ma qianling zhang Qiyi Liu School of Mathematics and Information Science North Minzu UniversityYinChuanNingXia 750021China

The article mainly explores the Hopf bifurcation of a kind of nonlinear system with Gaussian white noise excitation and bounded random ***,the nonlinear system with multisource stochastic fac-tors is reduced to an equivalent deterministic nonlinear system by the sequential orthogonal decomposi-tion method and the Karhunen-Loeve(K-L)decomposition ***,the critical conditions about the Hopf bifurcation of the equivalent deterministic system are *** the same time the influence of multisource stochastic factors on the Hopf bifurcation for the proposed system is ***,the theorical results are verified by the numerical simulations.

关键词： Multisource stochastic factors Gaussian white noise K-L decomposition Hopf bifurcation Random parameter

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Sonodynamic cancer therapy by novel iridium-gold nanoassemblies

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Chinese Chemical Letters 2022年第4期33卷 1907-1912页

作者： Jiayi Zhu Ai Ouyang Zhuanglin Shen Zhihao Pan Samya Banerjee qianling zhang Yantao Chen Pingyu zhang College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Department of Chemistry Indian Institute of Technology(BHU)VaranasiUP 221005India

Metal-based compounds with excellent photo-physical properties show good photochemotherapeutic ***,low in-depth tissue penetration of light limits their effectivity for deeply buried *** by the sonosensitizing ability of the traditional organic photosensitizers,here,we developed AuNPs@Ir1 as a sonosensitizer by hybridizing an organometallic Ir(Ⅲ) complex(Ir1) with ultrasmall gold nanoparticles(AuNPs) for efficient tumor sonodynamic therapy(SDT) for the first ***@Ir1 rapidly entered the cancer cells,produced ^(1)O_(2),and catalytically oxidized NADH to NAD;under ultrasound(US)irradiation,thus resulted in cancer cells *** of efficient passive retention in tumors post intravenous injection,AuNPs@Ir1 further efficiently inhibited the growth of tumors in-vivo under US stimulation without long-term toxicity to other ***,this work presents the excellent US triggered in-vitro and in-vivo anticancer profile of the novel AuNPs@*** is expected to increase the scope of SDT for metal-based anticancer drugs.

关键词： Metals in medicine Iridium complex Sonocatalysis Sonodynamic therapy Bioinorganic chemistry

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Lithium Salt Combining Fluoroethylene Carbonate Initiates Methyl Methacrylate Polymerization Enabling Dendrite-Free Solid-State Lithium Metal Battery

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Energy & Environmental Materials 2024年第6期7卷 50-59页

作者： Xue Ye Jianneng Liang Baorong Du Yongliang Li Xiangzhong Ren Dazhuan Wu Xiaoping Ouyang qianling zhang Jianhong Liu Institute of Process Equipment College of Energy EngineeringZhejiang UniversityHangzhou310000 China Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen518061 China

This work demonstrates a novel polymerization-derived polymer electrolyte consisting of methyl methacrylate,lithium bis(trifluoromethanesulfonyl)imide and fluoroethylene *** polymerization of MMA was initiated by the amino compounds following an anionic catalytic *** plays both roles including the initiator and Li ion source in the polymer ***,lithium bis(trifluoromethanesulfonyl)imide has difficulty in initiating the polymerization reaction of methyl methacrylate monomer,a very high concentration of lithium bis(trifluoromethanesulfonyl)imide is needed for initiating the ***,the fluoroethylene carbonate additive can work as a supporter to facilitate the degree of dissociation of lithium bis(trifluoromethanesulfonyl)imide and increase its initiator capacity due to the high dielectric *** as-prepared poly-methyl methacrylate-based polymer electrolyte has a high ionic conductivity(1.19×10^(−3)S cm^(−1)),a wide electrochemical stability window(5 V vs Li^(+)/Li),and a high Li ion transference number(t_(Li^(+)))of 0.74 at room temperature(RT).Moreover,this polymerization-derived polymer electrolyte can effectively work as an artificial protective layer on Li metal anode,which enabled the Li symmetric cell to achieve a long-term cycling performance at 0.2 mAh cm^(−2)for 2800 *** LiFePO_(4)battery with polymerization-derived polymer electrolyte-modified Li metal anode shows a capacity retention of 91.17%after 800 cycles at 0.5 *** work provides a facile and accessible approach to manufacturing poly-methyl methacrylate-based polymerization-derived polymer electrolyte and shows great potential as an interphase in Li metal batteries.

关键词： in situ polymerization lithium anode polymer electrolyte solid-state lithium batteries

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Building Fe atom–cluster composite sites using a site occupation strategy to boost electrochemical oxygen reduction

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Carbon Energy 2024年第3期6卷 276-286页

作者： Tingyi Zhou Yi Guan Changjie He Lei zhang Xueliang Sun Zhongxin Song qianling zhang Chuanxin He Xiantao Jiang Zhaoyan Luo Wei Xing Xiangzhong Ren College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhenGuangdongChina Department of Mechanical and Materials Engineering University of Western OntarioLondonOntarioCanada State Key Laboratory of Electroanalytical Chemistry Jilin Province Key Laboratory of Low Carbon Chemical PowerChangchun Institute of Applied ChemistryChinese Academy of SciencesJilinChangchunChina

The high-temperature pyrolysis process for preparing M–N–C single-atom catalyst usually results in high heterogeneity in product structure concurrently contains multiscale metal phases from single atoms(SAs),atomic clusters to ***,understanding the interactions among these components,especially the synergistic effects between single atomic sites and cluster sites,is crucial for improving the oxygen reduction reaction(ORR)activity of M–N–C ***,herein,we constructed a model catalyst composed of both atomically dispersed FeN4 SA sites and adjacent Fe clusters through a site occupation *** found that the Fe clusters can optimize the adsorption strength of oxygen reduction intermediates on FeN4 SA sites by introducing electron-withdrawing–OH ligands and decreasing the d-band center of the Fe *** as-developed catalyst exhibits encouraging ORR activity with halfwave potentials(E1/2)of 0.831 and 0.905 V in acidic and alkaline media,***,the catalyst also represents excellent durability exceeding that of Fe–N–C SA *** practical application of Fe(Cd)–CNx catalyst is further validated by its superior activity and stability in a metalair battery *** work exhibits the great potential of synergistic effects between multiphase metal species for improvements of singleatom site catalysts.

关键词： d-band center metal clusters oxygen reduction reaction single-atom catalyst site occupations strategy

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Challenges and approaches of single-crystal Ni-rich layered cathodes in lithium batteries

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National Science Review 2023年第12期10卷 203-222页

作者： Jiangtao Hu Hongbin Wang Biwei Xiao Pei Liu Tao Huang Yongliang Li Xiangzhong Ren qianling zhang Jianhong Liu Xiaoping Ouyang Xueliang Sun Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen University 2. GRINM(Guangdong) Institute for Advanced Materials and Technology School of Materials Science and Engineering Xiangtan University Department of Mechanical and Materials Engineering University of Western Ontario Eastern Institute for Advanced Study Eastern Institute of Technology

High energy density and high safety are incompatible with each other in a lithium battery, which challenges today’s energy storage and power applications. Ni-rich layered transition metal oxides(NMCs) have been identified as the primary cathode candidate for powering next-generation electric vehicles and have been extensively studied in the last two decades, leading to the fast growth of their market share, including both polycrystalline and single-crystal NMC cathodes. Single-crystal NMCs appear to be superior to polycrystalline NMCs, especially at low Ni content(≤60%). However, Ni-rich single-crystal NMC cathodes experience even faster capacity decay than polycrystalline NMC cathodes, rendering them unsuitable for practical application. Accordingly, this work will systematically review the attenuation mechanism of single-crystal NMCs and generate fresh insights into valuable research pathways. This perspective will provide a direction for the development of Ni-rich single-crystal NMC cathodes.

关键词： single-crystal NMC attenuation mechanism modification strategy developing route

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Functionally gradient materials for sustainable and high-energy rechargeable lithium batteries:Design principles,progress,and perspectives

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Journal of Energy Chemistry 2024年第12期99卷 426-449页

作者： Jiaojiao Deng Xiuyun Ren Hai Lin Liang Hu Yu Bai Xiaoliang Yu Jinhan Mo qianling zhang Feiyu Kang Baohua Li Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060GuangdongChina Department of Mechanical Engineering and Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHong Kong 999077China Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolShenzhen 518055GuangdongChina College of Civil and Transportation Engineering Shenzhen UniversityShenzhen 518060GuangdongChina

Rechargeable lithium batteries with high-capacity cathodes/anodes promise high energy densities for nextgeneration electrochemical energy ***,the associated limitations at various scales greatly hinder their practical *** gradient material(FGM)design endows the electrode materials with property gradient,thus providing great opportunities to address the kinetics and stability *** date,still no review or perspective has covered recent advancements in gradient design at multiple scales for boosting lithium battery *** fill this void,this work provides a timely and comprehensive overview of this exciting and sustainable research *** begin by overviewing the fundamental features of FGM and the rationales of gradient design for improved electrochemical ***,we comprehensively review FGM design for rechargeable lithium batteries at various scales,including natural or artificial solid electrolyte interphase(SEI)at the nanoscale,micrometer-scale electrode particles,and macroscale electrode *** link between gradient structure design and improved electrochemical performance is particularly *** most recent research into constructing novel functional gradients,such as valence and temperature gradients,has also been ***,we discussed the current constraints and future scope of FGM in rechargeable lithium batteries,aiming to inspire the development of novel FGM for next-generation high-performance lithium batteries.

关键词： Rechargeable lithium battery Functional gradient material High energy density Long cycle life Review

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Pathway for high-energy density LiMnFePO4 cathodes

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Progress in Natural Science:Materials International 2023年第1期33卷 126-131页

作者： Shaoluan Huang Wenzhong Lin Liewu Li Pei Liu Tao Huang Zhencheng Huang Jinli kong Wei Xiong Wenwei Yu Shenghua Ye Jiangtao Hu qianling zhang Jianhong Liu Graphene Composite Research Center College of Chemistry and Environmental Engineering Shenzhen University Shenzhen Eigen–Equation Graphene Technology Co.Ltd.

Polyanion cathodes are credited for its thermal stability and better safety, no matter in lithium ion batteries or sodium ion batteries. Polyanion oxides with phosphate groups came to the public’s attention in 1997, and the representative material is LiFePO4, which has been widely applied and plays a huge role in the field of powder batteries and energy storage system. However, owing to the low lithiation potentials and storage sites, the energy densities of polyanion cathodes have been restricted, resulting of low-endurance and limited application scenarios. Accordingly, here, we use cheap and environmental friendly raw materials as precursors to synthesis high energy density LiMn0.6Fe0.4PO4@C cathode by a simple spray-drying and high temperature calcination *** self-designed liquid polyacrylonitrile(LPAN) is added for the intention of nanoparticle coating, conductive network construction and particle granulation. The low-cost and carbon-coated LiMn0.6Fe0.4PO4cathode exhibits excellent reversible capacity, low electrochemical polarization and excellent rate capacity, which maintains93.5% capacity retention after cycling 1000 times at 5C. The work introduces a new avenue to fabricate olivine structure cathodes with outstanding electrochemical performance for the high energy density lithium ion batteries.

关键词： Polyanion cathode Liquid polyacrylonitrile Cost effective High energy density High stability

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