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Engineered high-density carbon defects enable accelerated sulfur conversion for kinetics-boosted room-temperature sodium-sulfur batteries

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Journal of Energy Chemistry 2025年第5期104卷 442-451页

作者： Kejian Tang Yingxinjie Wang Xiangqi Peng Ziying Zhang Guohao Li Jie Wang Chi Chen Zhenjun Wu Xiuqiang Xie College of Chemistry and Chemical Engineering Hunan University College of Materials Science and Engineering Hunan University CAS Key Laboratory of Design and Assembly of Functional Nanostructures & Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

The practical application of room-temperature sodium-sulfur（RT Na-S） batteries is hindered by sluggish reaction kinetics and deleterious side reactions. To address these challenges, a defective carbon is designed as a sulfur host through a simple temperature-controlled method. The abundant porosity and surface roughness enhance sulfur encapsulation and mitigate side reactions. Prominently, highly disordered structure facilitates the chemical adsorption towards NaPSs and accelerates sulfur ***, electrochemical characterizations reveal that concentration polarization during the formation of long-chain NaPSs emerges as the key polarization and activation polarization dominates the nucleation of Na2S during discharge, while they both significantly affect the formation of S8/long-chain NaPSs during charge. Owing to the improved adsorption capability and electrocalatytic sites, S/CZ-900presents lower concentration polarization and activation polarization during both discharge and ***, S/CZ-900 cathode achieves 1031, 914, and 671 mAh g-1at 1, 2, and 5 C. The cathode with a high sulfur loading of 6.4 mg cm-2delivers an impressive areal capacity of 14.3 mAh cm-2. Moreover, the S/CZ-900||Na/CZ-900（Al） full cell exhibits robust cycling stability, maintaining 1094 mAh g-1after 40 cycles at 0.1 C. The insights provide a workable solution of metal-free carbonaceous host materials for the evolution of RT Na-S batteries.

关键词： Highly disordered structure Metal-free carbonaceous sulfur host Porous and rough carbon RT Na-S batteries

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3D printing technology for rechargeable Li/Na-ion batteries

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Journal of Energy Chemistry 2025年第4期103卷 237-263页

作者： Ziting Chen Yihao Yang Songheng Xie Yangjie Liu Puwu Liang Xiang Hu Zhenhai Wen CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen EnergyFujian Institute of Research on the Structure of Matter Chinese Academy of Sciences College of Chemistry Fuzhou University College of Chemistry and Materials Science Fujian Normal University

The rapid advancement of energy storage technologies highlights the urgent need for innovative electrochemical energy storage(EES) systems featuring complex ***-dimensional(3D) printing has emerged as a groundbreaking solution,enabling the fabrication of customized,high-performance electrodes with precise structural *** approach enhances accuracy,convenience,and facilitates improved ion and electron *** this review,we systematically summarize recent advancements in leveraging 3D printing techniques for lithium-ion and sodium-ion *** begin by comparing the unique capabilities of various 3D printing methods against traditional fabrication techniques for producing tailored *** then address critical challenges across different battery module architectures-cathodes,anodes,electrolytes,and integrated systems-highlighting breakthroughs in material selection,ink formulation,and ***,we explore the future potential of 3Dprinted batteries in next-generation EES devices,emphasizing their role in advancing customizable,high-efficiency *** insights provided herein illuminate how 3D printing can significantly accelerate the development of advanced battery materials,fostering innovation in energy storage technology.

关键词： 3D printing Electrode Electrolyte Integrated batteries Li/Na-ion batteries

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Boosting characteristic emissions of lanthanide in Cs_(2)Ag_(0.6)Na_(0.4)InCl_(6-x)Br_(x) double perovskites via mixing halide

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Journal of Rare Earths 2025年第1期43卷 39-46,I0002页

作者： Shujian Wang Dejian Chen Jie Hu Sisi Liang Kunyuan Xu Maochun Hong Haomiao Zhu University of Science and Technology of China Hefei230026China Ganjiang Innovation Academy Chinese Academy of SciencesGanzhou341000China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Research Center of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen361021China

Lanthanide ions(Ln^(3+))doping provides a potential strategy to control over the luminescent properties of lead-free halide double perovskite nanocrystals(DP NCs).However,due to the low energy transfer efficiency between self-trapped exciton(STE)and Ln^(3+)ions,the characteristic emissions of Ln^(3+)ions are not ***,the energy transfer mechanism between STE and Ln^(3+)ions is also elusive and requires in-depth *** chose trace Bi^(3+)-doped Cs_(2)Ag_(0.6)Na_(0.4)InCl_(6-x)Br_(x) as a representative DP matrix to demonstrate that by tuning the bromide concentration,the Ln^(3+)emission can be greatly *** enhanced STE and Ln^(3+)ions energy transfer originates from the high covalency of Ln-Br bond,which contributes to improve ment of the characteristic emission of Ln^(3+)*** re,optical spectroscopy reveals that the energy transfer mechanism from DP to Eu^(3+)ions is different from all the other doped Ln^(3+)*** energy transfer from DP to Eu^(3+)ions is mostly through Eu-Br charge transfer while the other Ln^(3+)ions are excited by energy transfer from *** distinct energy transfer mechanism has resulted from the energy separation between the excited energy level of Ln^(3+)ions and the bottom of conduction band of *** increasing the energy separation,the energy transfer from STE to Ln^(3+)ions is less efficient because of the generation of a larger number of phonons and finally becomes impossible for Eu^(3+)*** results provide new insight into tuning the energy transfer of Ln^(3+)-doped DP NCs.

关键词： Double perovskitenanocrystal Lead free Lanthanideions Energytransfer Rare earths

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Insight into bay-/end-substituted perylene diimide and its S-scheme heterojunction for enhanced photocatalytic H2O2 production under visible-light irradiation

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材料科学技术（英文版） 2025年第3期206卷 257-268页

作者： Bo Zhang Kang Li Renfu Li Shoufeng Wang Longtian Kang Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China College of Chemistry Fuzhou UniversityFuzhou 350116China University Chinese Academy of Science Fujian CollegeFuzhou 350002China Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China University Chinese Academy of Science Fujian CollegeFuzhou 350002China

Here,1D bis(N-carboxymethyl)peryleneimide(H2PDI),0D 1,6,7,12-tetrachloro-bis(N-carboxymethyl)peryleneimide(4Cl-H2PDI),and 2D 4Cl-H2PDI/graphene quantum dot(4Cl-H2PDI/GQD)nanostructures are synthesized and carefully *** effect of bay-/end-substitution and S-scheme heterojunction of PDI-based materials as main catalysts on the photocatalytic H2O2 evolution is first studied through the oxygen reduction reaction(ORR).Under the visible-light irradiation(＞420 nm),4Cl-H2PDI and 4Cl-H2PDI/GQD as photocatalysts exhibit the～7 and～16 times H2O2 evolution rate than H2PDI(1059.6 vs.2484.0 vs.160.0 μM g-1 h-1),*** systematical experiments reveal that 4C1-H2PDI and 4Cl-H2PDI/GQD should prefer a two-step single-electron ORR process,while H2PDI may involve a 4e-water oxidation and one-step 2e-ORR *** experiments confirm that the bay-substitution and GQD doping of H2PDI can promote the generation,transportation,and separation of photogenerated electrons and holes,and prolong the carrier *** work provides insight into PDI-based photocatalytic H2O2 production.

关键词： Photocatalysis Oxygen reduction reaction H2O2 evolution Perylenediimide S-scheme heterojunction

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Advanced dielectrics for 2D devices

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Science Bulletin 2025年第3期70卷 295-296页

作者： Hao Zhang Zhiwen Lu Zhenhai Wen Department of Chemical Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA Department of Chemistry University of OxfordOxford OX13TAUK CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen EnergyFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

As the application potential of two-dimensional(2D)materials in fields such as nanoelectronics,optoelectronics,and quantum computing continues to grow,the challenge of fabricating high-quality dielectric layers has be... 详细信息

关键词： computing continue devices

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Fluorinated N,P co-doped biomass carbon with high-rate performance as cathode material for lithium/fluorinated carbon battery

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Rare Metals 2025年第1期44卷 110-120页

作者： Ke Yan Yan Zou Liang-Xue Bao Qi Xia Ling-Yi Meng Hai-Chen Lin Hui-Xin Chen Hong-Jun Yue College of Chemistry Fuzhou UniversityFuzhou 350108China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research On the Structure of MatterChinese Academy of SciencesFuzhou 350002China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China Sustainable Power and Energy Center Nano Engineering DepartmentUniversity of California San DiegoLa JollaSan DiegoCA 92093USA

Lithium/fluorinated carbon(Li/CF_(x))batteries are greatly limited in their applications mostly due to poor rate *** this study,N,P co-doped biomass carbon was synthesized using melamine and phytic acid as doping sources,and the resulting product was then utilized as a precursor for CF_(x).The resulting fluorinated biomass carbon has a high degree of fluorination,exceeding the specific capacity of commercial fluorinated graphite while also demonstrating exceptional performance at high discharge *** the fluorination process,N,P-containing functional groups were removed from the crystalline lattice in the basal *** facilitates the formation of a defect-rich carbon matrix,enhancing the F/C ratio by improving the fluorinated active sites and obtaining more highly active semi-ionic ***,the abundant defects and porous structure promote Li^(+)*** functional theory calculations indicated that doping modification effectively reduces the energy barrier for Li+migration,enhancing Li+transport *** prepared CF_(x)delivers material with a maximum specific capacity of 919 mAh·g^(-1),while maintaining a specific capacity of 702 mAh·g^(-1)at a high discharge current density of 20C(with a capacity retention rate of 76.4%).In this study,fluorinated N,P co-doped biomass carbon,exhibiting ultrahigh capacity and high-rate performance,was prepared for the first time,which can potentially advance the commercialization of CF_(x).

关键词： Li/CF_(x)primary batteries Biomass carbon Heteroatom doping High performance

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Anionic covalent organic framework electrolyte with tailored ion channels for high-areal-capacity solid-state lithium metal battery

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Science China Chemistry 2025年第4期68卷 1533-1540页

作者： Xu Zhuang Yangdan Hui Yangyang Feng Jiajie Chen Junlan Chen Yaobing Wang College of Chemistry Institute of Molecular Engineering PlusFuzhou UniversityFuzhou 350116China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsState Key Laboratory of Structural ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China University of Chinese Academy of Sciences Beijing 100049China Fujian College University of Chinese Academy of SciencesFuzhou 350002China

Covalent organic frameworks(COFs)are an emerging class for solid-state electrolytes due to their ordered and customizable ion transport *** high ionic conductivity(σ_(Li+))and Li^(+) transference number(t_(Li+))are achieved;the high-arealcapacity solid-state lithium metal battery(LMB)still encountered challenges;which is mainly determined by homogeneous Li^(+) flux through channels and ***;we design a COF coupling anionic skeletons with branched ion-conductive chains(COF-S)as tailored fast ion-transport channels to achieve high-areal-capacity solid-state *** the dispersed COF-S-based electrolyte is further obtained by incorporating ethoxylated trimethylolpropane triacrylate(ETPTA)and Li FSI(ETPTA-COF-S)via in situ light *** this way;the abundant SO_(3)-groups promote Li+adsorption and facilitate axial transport via 1D channels;thus enabling highσLi+of 1.29 m S cm^(-1)and tLi+of *** branched chains can tailor ion channels to suppress largesize anions transport;disperse and uniform Li+flux;thus leading to high average Coulombic efficiency(CE)up to 98.43%for 100 cycles(~800 h)at 0.5 m A cm^(-2)under the high areal capacity of 2 mAh cm^(-2).When paired with 2 m Ah cm^(-2)LiFePO_(4)(LFP)cathode and thin Li anode of 20μm;Li||ETPTA-COF-S||LFP exhibits superior cyclic stability for 80 cycles.

关键词： covalent organic framework ion channel sulfonic acid group gel electrolyte lithium metal battery high areal capacity

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Microdroplet cascade Catalysis for Highly Selective Production of Propylene Glycol under Ambient Conditions

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Journal of the American Chemical Society 2025年第19期147卷 16060-16069页

作者： Dong, Jianing Xu, Jiajia Meng, Zhao-Dong Nan, Zi-Ang Li, Weixin Zare, Richard N. Tian, Zhong-Qun Fan, Feng Ru Xiamen University Xiamen361005 China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou350002 China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare-Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen361021 China Department of Chemistry Stanford University StanfordCA94305 United States

Conventional propylene glycol (PG) production relies on an energy-intensive two-step thermocatalytic process, contributing significantly to CO2 emissions. A sustainable alternative under ambient conditions remains elusive, hindered by challenges in selectivity and energy efficiency. Here, we present a cascade catalysis strategy for efficient and selective PG production within water microdroplets under ambient conditions. Propylene (CH3CH═CH2) is converted to PG (CH3CH(OH)CH2OH) at the microdroplet/titanium silicalite-1 (TS-1) interface, driven by in situ generated hydrogen peroxide (H2O2) via methyl viologen catalysis. This approach harnesses the water microdroplet interface to confine the reaction, enhancing catalytic activity and increasing selectivity. Our system achieves a PG production efficiency of 680 μM and a selectivity of 88%, while minimizing unwanted side products and energy demands. This innovative method offers a sustainable pathway for PG synthesis and highlights the transformative potential of water microdroplet technology in advancing green chemistry and industrial applications. © 2025 American Chemical Society.

关键词： Catalysis

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Unraveling the reaction mechanism of high reversible capacity CuP_(2)/C anode with native oxidation PO_(x) component for sodium-ion batteries

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Chinese Chemical Letters 2025年第1期36卷 574-578页

作者： Huixin Chen Chen Zhao Hongjun Yue Guiming Zhong Xiang Han Liang Yin Ding Chen State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China CAS key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Materials Science and Engineering Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesNanjing Forestry UniversityNanjing 210037China Laboratory of Advanced Spectro-electrochemistry and Li-ion Batteries Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Institute of Physics Chinese Academy of SciencesBeijing 100190China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi institutesChinese Academy of SciencesXiamen 361021China

Phosphorus-based anode is a promising anode for sodium-ion batteries(SIBs)due to its high specific capacity,however,suffers from poor electronic conductivity and unfavorable electrochemical *** metals such as copper(Cu)into phosphorus has been demonstrated to not only improve the electronic conductivity but also accommodate the volume change during cycling,yet the underline sodiation mechanism is not ***,take a copper phosphide and reduced graphene oxide(CuP_(2)/C)composite as an example,which delivers a high reversible capacity of>900 mAh/***,it is revealed that the native oxidation PO_(x)components of the CuP_(2)/C composite show higher electrochemical reversibility than the bulk Cu P_(2),based on a quantitative analysis of high-resolution solid-state^(31)P NMR,ex-situ XPS and synchrotron X-ray diffraction characterization *** sodiation products Na_(3)PO_(4) and Na_(4)P_(2)O_(7) derived from PO_(x) could react with Na-P alloys and regenerate to PO_(x) during charge process,which probably accounts for the high reversible capacity of the Cu P_(2)/C *** findings also illustrate that the phosphorus transforms into nanocrystalline Na_(3)P and Na_(x)P alloys,which laterally shows crystallization-amorphization evolution process during cycling.

关键词： CuP_(2)/C composite POx component Reaction mechanism Solid-state NMR Sodium-ion batteries

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Environmentally friendly Y2MoO6 high near-infrared reflective yellow pigment based on Bi doping

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Ceramics International 2025年第12期51卷 15422-15434页

作者： Lu, Jiahao Zhai, Ruiying Yang, Yijie Chen, Sisi Sun, Xiaoqi College of Chemistry Fuzhou University Fuzhou350108 China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China Fujian Research Center for Rare Earth Engineering Technology Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Fujian Xiamen361021 China Fujian College University of Chinese Academy of Sciences Fujian Fuzhou350002 China College of Chemistry and Materials Science Fujian Normal University Fujian Fuzhou350007 China Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths Ganjiang Innovation Academy Chinese Academy of Sciences Jiangxi Ganzhou341000 China

Herein, a series of environmentally friendly rare earth doped yellow pigments with near-infrared (NIR) properties were synthesized using solid-state reaction at a high temperature of 1200 °C, with the general formula Y2−xBixMoO6. The prepared pigments were characterized using analytical techniques, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), CIE 1976 color space system, ultraviolet–visible/near infrared (UV–Vis/NIR) spectroscopy. Results indicated that its color changes from white to yellow after doping with Bi2O3 in Y2MoO6. As the doping amount of Bi increased, the yellow color gradually deepened. All the doped samples exhibited a monoclinic structure with space group C2/c (15). When the optimal doping ratio was Y1.8Bi0.2MoO6 (i.e., x = 0.2), the NIR reflectance (R%) and NIR solar reflectance (R∗%) of the pigment sample both exceeded 100 %. In the study of acid and alkali resistance, the color difference value ΔE∗ before and after pigment soaking was less than 5, indicating good chemical stability. In the coating study, the temperature difference between the air inside the pigment-coated house model and the air inside the uncoated house model reached 7 °C after 20 min of irradiation using an infrared lamp, suggesting that the prepared pigment reflects solar thermal radiation well and demonstrates good thermal insulation performance. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Infrared lamps

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