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Introducing strong metal–oxygen bonds to suppress the Jahn-Teller effect and enhance the structural stability of Ni/Co-free Mn-based layered oxide cathodes for potassium-ion batteries

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Journal of Energy Chemistry 2025年第2期101卷 713-722页

作者： Yicheng Lin Shaohua Luo Pengyu Li Jun Cong Wei Zhao Lixiong Qian Qi Sun Shengxue Yan School of Materials Science and Engineering Northeastern University School of resources and Materials Northeastern University at Qinhuangdao key laboratory of Dielectric and Electrolyte Functional Material hebei province

Mn-based layered oxides（KMO） have emerged as one of the promising low-cost cathodes for potassiumion batteries（PIBs）.However,due to the multiple-phase transitions and the distortion in the MnO6structure induced by the Jahn-Teller（JT） effect associated with Mn-ion,the cathode exhibits poor structural ***,we propose a strategy to enhance structural stability by introducing robust metal-oxygen（M-O） bonds,which can realize the pinning effect to constrain the distortion in the transition metal（TM） ***,all the elements employed have exceptionally high crustal *** a proof of concept,the designed K0.5Mn0.9Mg0.025Ti0.025Al0.05O2cathode exhibited a discharge capacity of approximately 100 mA h g-1at 20 mA g-1with 79% capacity retention over 50 cycles,and 73% capacity retention over 200 cycles at 200 mA g-1,showcased much better battery performance than the designed cathode with less robust M-O *** properties of the formed M-O bonds were investigated using theoretical *** enhanced dynamics,mitigated JT effect,and improved structural stability were elucidated through the in-situ X-ray diffractometer（XRD）,in-situ electrochemical impedance spectroscopy（EIS）(and distribution of relaxation times（DRT） method),and ex-situ X-ray absorption fine structure（XAFS） *** study holds substantial reference value for the future design of costeffective Mn-based layered cathodes for PIBs.

关键词： Jahn-Teller effect Layered oxide cathodes Low-cost Potassium-ion batteries Robust M–O bonds

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Efficiency improvement for post-sulfurized CIGS solar cells enabled by in situ Na doping

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Journal of Energy Chemistry 2025年第2期101卷 324-332页

作者： Zeran Gao Yuchen Xiong Jiawen Wang Shanshan Tian Wanlei Dai Haoyu Xu Xinzhan Wang Chao Gao Yali Sun Wei Yu National-Local Joint Engineering laboratory of New Energy Photovoltaic Devices Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province Hebei University

Despite sulfurization offers the advantage of improving the photovoltaic performance in preparing Cu（In,Ga）Se2（CIGS） absorbers,deep level defects in the absorber and poor energy level alignment on the front surface are still main obstacles limiting the improvement of power co nversion efficiency（PCE） in sulfided CIGS solar ***,an in-situ Na doping strategy is proposed,in which the tailing effect of crystal growth is used to promote the sulfurization of CIGS *** is found that the grain growth is supported by Na incorporating due to the enrichment of NaSexnear the upper *** high soluble Na during grain growth can not only suppress intrinsic InCudonor defects in the absorber,but also tailor S distribution in bulk and the band alignment at the heterojunction,which are both beneficial for the effective electron ***,the Na aggregation near the bottom of the absorber also contributes to the crystalline quality increasing and favorable ultra-thin MoSe2formation at back contact,resulting in a reduced barrier height conducive to hole *** of the champion device is as high as 16.76% with a 28% *** research offers new insights into synthesizing CIGS solar cells and other chalcogenide solar cells with superior cell performance when using an intense sulfurization process.

关键词： CBO CIGS Defect In situ doping Sulfurization

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Functional ternary salt construction enabling an in-situ Li3N/LiF-enriched interface for ultra-stable all-solid-state lithium metal batteries

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Journal of Energy Chemistry 2025年第2期101卷 68-75页

作者： Hong-Yan Liu Xin-Yu Liu Nan Zhang Peng-Fei Wang Zong-Lin Liu Jie Shu Ting-Feng Yi School of Materials Science and Engineering Northeastern University key laboratory of Dielectric and Electrolyte Functional Material hebei province School of Resources and Materials Northeastern University at Qinhuangdao Faculty of Materials Science and Chemical Engineering and key laboratory of Photoelectric Detection Materials and Devices of Zhejiang province Ningbo University

Poly（ethylene oxide）-based polymer all-solid-state lithium metal batteries（ASSLBs） have received widespread attention due to their low cost,good process ability,and high energy ***,the growth of Li dendrites within polymer solid-state electrolytes damages the reversibility of Li anodes and still impedes their widespread *** efficient strategy is to construct a superior solid electrolyte ***,a stable interface enriched with Li3N and LiF is in-situ formed between Li anode and a terna ry salt *** terna ry salt electrolyte is innovatively designed by introducing lithium bis（trifluoromethane sulfonyl）imide（LiTFSI）,lithium bis（fluorosulfonyl）imide（LiFSI）,and LiNO3to poly（ethylene oxide） *** characterization indicates that LiNO3and LiFSI contribute to forming a Li3N-LiF-enriched interface and meanwhile LiTFSI ensures excellent ***,among various Li compound components,Li3N has high ionic conductivity,which is beneficial for reducing overpotential,while LiF has high interfacial energy which can enhance nucleation energy and suppress the formation of Li *** experimental results show that ASSLBs coupled with LiFePO4cathode display extremely excellent cycle stability approximately 2200 cycles at 2 C,with a final and corresponding discharge specific capacity of 96.7 mA h g-1. Additionally,a schematic illustration of the working mechanism for the Li3N-LiF interface is proposed.

关键词： All-solid-state lithium metal batteries In-situ SEI Lithium dendrite PEO (LiTFSI) Solid electrolyte

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Preparation and applications of calcium ferrite as a functional material:A review

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 292-310页

作者： Xiuli Han Bowen Duan Lei Liu Shilong Fang Weiwei Wang College of Mining Engineering North China University of Science and TechnologyTangshan 063210China Collaborative Innovation Center of Green Development and Ecological Restoration of Mineral resources of hebei province Tangshan 063210China key laboratory of Mining Development and Security Technology of hebei province Tangshan 063210China

Calcium ferrite(CF)is recognized as a potential green and efficient functional material because of its advantages of magnetism,electrochemistry,catalysis,and biocompatibility in the fields of materials chemistry,environmental engineering,and ***-fore,the obtained research results need to be systematically summarized,and new perspectives on CF and its composite materials need to be *** on the presented studies of CF and its composite materials,the types and structures of the crystal are *** addition,the current application technologies and theoretical mechanisms with various properties in different fields are ***,the various preparation methods of CF and its composite materials are elaborated in *** importantly,the advantages and disadvantages of the synthesis methods of CF and its composite materials are discussed,and the existing problems and emerging challenges in practical production are ***,the key future research directions of CF and its composite materials have been prospected from the potential application technologies to provide references for its synthesis and efficient utilization.

关键词： calcium ferrite mineral functional materials preparation application perspectives

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Physical Layer Security Scheme With AoI-Awareness for Industrial IoT Based on Covert Communications

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IEEE/CAA Journal of Automatica Sinica 2025年第1期12卷 276-278页

作者： Yaping Li Zhi-Xin Liu Jia-Wei Su Ya-Zhou Yuan the key laboratory of Industrial Computer Control Engineering of hebei province Yanshan University

Dear Editor,Industrial Internet of things(IIoT) is a typical application of cyberphysical system(CPS). In the IIoT, wireless communication is an inevitable trend to replace the deployment-limited wired transmission for cases with large-scale and mobile devices. However, wireless communication gives rise to critical issues related to physical security, such as malicious detections and attacks [1].

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Encapsulating lipase on the surface of magnetic ZIF-8 nanosphers with mesoporous SiO2 nano-membrane for enhancing catalytic performance

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Chinese Chemical Letters 2025年第2期36卷 279-283页

作者： Guang-Xu Duan Queting Chen Rui-Rui Shao Hui-Huang Sun Tong Yuan Dong-Hao Zhang College of Pharmaceutical Science Hebei University Affiliated Hospital of hebei University key laboratory of Pharmaceutical Quality Control of hebei province College of Pharmaceutical ScienceHebei University Institute of Life Science and Green Development Hebei University

The preparation of immobilized enzyme with excellent performance is one of the difficulties that restrict the application of enzyme catalysis technology. Here, Candida rugosa lipase（CRL） was firstly adsorbed on the surface of magnetic zeolitic imidazolate framework-8（ZIF-8） nanospheres, which was further encapsulated with a mesoporous SiO2nano-membrane formed by tetraethyl orthosilicate（TEOS） polycondensation. Consequently, lipase could be firmly immobilized on carrier surface by physical binding rather than chemical binding, which did not damage the active conformation of enzyme. There were mesopores on the silica nano-membrane, which could improve the accessibility of enzyme and its apparent catalytic activity. Moreover, silica membrane encapsulation could also improve the stability of enzyme, suggesting an effective enzyme immobilization strategy. It showed that TEOS amount and the encapsulation time had significant effects on the thickness of silica membrane and the enzyme activity. The analysis in enzyme activity and protein secondary structure showed that lipase encapsulated in silica membrane retained the active conformation to the greatest extent. Compared with the adsorbed lipase, the encapsulated lipase increased its thermostability by 3 times and resistance to chemical denaturants by 7 times. The relative enzyme activity remained around 80% after 8 repetitions, while the adsorbed lipase only remained at7.3%.

关键词： Encapsulation Enzyme immobilization Lipase activity Mesoporous silica membrane ZIF-8

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Internal transcribed spacer sequencing to explore the intrinsic composition of fungal communities in fungal esophagitis

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World Journal of Gastroenterology 2025年第7期31卷 26-38页

作者： Yi-Kang Song Lin Zheng Ai-Xin Liu Jun-Ji Ma Department of Gastroenterology The Second Hospital of Hebei Medical UniversityHebei Key Laboratory of GastroenterologyHebei Institute of GastroenterologyHebei Clinical Research Center for Digestive DiseasesShijiazhuang050000Hebei ProvinceChina

BACKGROUND Fungal esophagitis(FE)is caused by fungal invasion of the esophageal *** endoscopy,the esophageal mucosa shows edema,congestion,erosion,and ulceration,and bleeds easily when touched,and the surface of the mucosa is covered with small white spots like"bean curd residue".Clinical cases showing typical FE under endoscopic imaging but negative esophageal mucosal brush(referred to as suspected FE)have increased the difficulty and challenge of clinical diagnosis and *** present,the esophageal fungal flora of suspected case has not been thoroughly *** To characterize the fungal flora in FE,suspected FE,and the esophageal normal controls(NCs),and to identify marker species to improve detection of *** This was a case-control study.A total of 19 patients with FE,16 with suspected FE,and 10 NCs were selected by *** esophageal cell brush samples of each group were sequenced by internal transcribed spacer(ITS)1 and analyzed by *** In FE and suspected FE patients,species richness,species diversity and species evenness,as measured by the Chao1 index,Shannon index and Pielou index,were lower than in the NCs,and the comparison between the FE and NCs was the most significant(P<0.05).Compared with the NCs,the relative abundance of Candida in FE and suspected FE patients was significantly increased(P<0.001),while the relative abundance of Yarrowia was significantly decreased(P<0.05).Moreover,Yarrowia abundance in the FE group was significantly lower than in the NCs and suspected FE groups(P<0.001).The area under the curve for Candida in FE and suspected FE patients was 99.5%(P<0.05)and 81.3%(P<0.05),***,compared with FE patients,the relative abundance of Ascomycota and Candida in the esophageal flora of suspected FE patients was decreased,while the relative abundance of Yarrowia,Thermomyces and Pichia was *** ITS showed that composition of the fungal community was similar in the F

关键词： Fungal microbiota Esophagitis Candida Yarrowia Biomarker

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Harnessing multi-omics approaches to elucidate the role of Chinese herbal compounds in chemotherapy-induced gastrointestinal damage

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World Journal of Gastrointestinal Oncology 2025年第2期17卷 35-40页

作者： Chang Qiao Hao-Xiang Zhang Xiao-Tong Tian Yan-Jing Zhang De-Hui Li Graduate School Hebei University of Chinese MedicineShijiazhuang 050000Hebei ProvinceChina Guang’anmen Hospital China Academy of Chinese Medical SciencesBeijing 100053China Department of Oncology I The First Affiliated Hospital of Hebei University of Chinese Medicine(Hebei Province Hospital of Chinese Medicine)Shijiazhuang 050000Hebei ProvinceChina Department of Oncology II The First Affiliated Hospital of Hebei University of Chinese Medicine(Hebei Province Hospital of Chinese Medicine)Key Laboratory of Integrated Chinese and Western Medicine for Gastroenterology ResearchHebei Industrial Technology Institute for Traditional Chinese Medicine PreparationShijiazhuang 050000Hebei ProvinceChina

In this editorial,we discuss the findings reported by Wang et al in the latest issue of the World Journal of Gastrointestinal *** research methodologies,including microbiome analysis,assert that the Tzu-Chi Cancer-Antagonizing and Life-Protecting II Decoction of Chinese herbal compounds mitigates inflammatory responses by inhibiting the NF-κB signaling *** action helps maintain the dynamic equilibrium of the intestinal microecology and lessens chemotherapy-induced gastrointestinal *** efficacy of these compounds is intimately linked to the composition of intestinal *** compounds regulate intestinal microecology by virtue of their specific compatibility and effectiveness,thereby enhancing the overall therapeutic outcomes of cancer ***,the exact mechanisms underlying these effects warrant further ***-omics technologies offer a systematic approach to elucidate the mechanisms and effectiveness of Chinese herbal compounds in *** manuscript reviews the application of multi-omics technologies to Chinese herbal compounds and explores their potential role in modulating the gastrointestinal microenvironment following cancer chemotherapy,thus providing a theoretical foundation for their continued use in adjunct cancer treatment.

关键词： Chinese herbal compounds Gastrointestinal microenvironment Chemotherapy Multi-omics Intestinal microecology

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Evaluating the impacts of converting grain to vegetable fields on nitrate transport in the deep vadose zone of the North China Plain

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Journal of Geographical Sciences 2025年第1期35卷 189-205页

作者： LIU Meiying MIN Leilei WU Lin ZHANG Yucui QI Yongqing WANG Shiqin LIU Binbin GENG Di SHEN Yanjun hebei key laboratory of Water-Saving Agriculture Key Laboratory of Agricultural Water ResourcesCenter for Agricultural Resources ResearchInstitute of Genetics and Developmental BiologyCASShijiazhuang050022China School of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing101408China

Nitrate(NO_(3)^(-))accumulation and transport processes in the thick vadose zone affect the evolution of the groundwater NO_(3)^(-)content in intensive agricultural *** land-use change(ALUC),typically accompanied by substantial alterations in nitrogen fertilizer application and irrigation practices,is an important influencing *** study evaluated the changes in NO_(3)^(-)accumulation and transport in the deep vadose zone(DVZ,below the root zone),and the groundwater NO_(3)^(-)content associated with ALUC from grain to vegetable fields in the North China Plain(NCP).The ALUC from grain to vegetable resulted in nitrate–nitrogen(NO_(3)^(-)-N)accumulation in DVZ increased by 235.5 kg ha^(-1)m^(-1)(163.2%)in the piedmont plain and 224.9 kg ha^(-1)m^(-1)(102.7%)in the central plain,*** change accelerated downward transport velocity in the DVZ(from 0.81±0.47 to 0.89±0.55 m yr^(-1)in the piedmont plain,and from 0.24±0.12 to 0.92±0.12 m yr^(-1)in the central plain)and increased NO_(3)^(-)leaching *** transport velocity and leaching fluxes resulted in chemical N-fertilizer entering the aquifer in several areas in the piedmont *** impact of the agricultural activity intensity changes,accompanied by the ALUC,on groundwater quantity and quality should be considered in similar regions.

关键词： grain field vegetable field nitrate groundwater deep vadose zone(DVZ)

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Benchmarking model chemistry composite calculations for vertical ionization potential of molecular systems

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Chinese Chemical Letters 2025年第2期36卷 536-539页

作者： Bingwei Wang Yihong Ding Xiao Tian key laboratory of Carbon Materials of Zhejiang province Wenzhou Key Lab of Advanced Energy Storage and Conversion Zhejiang Province Key Lab of Leather Engineering College of Chemistry and Materials Engineering Wenzhou University laboratory of Theoretical and Computational Chemistry Institute of Theoretical Chemistry Jilin University School of Mathematics and Science Hebei GEO University

In chemical science, the vertical ionization potential(VIP) is a crucial metric for understanding the electronegativity, hardness and softness of chemical material systems as well as the electronic structure and stability of molecules. Ever since the last century, the model chemistry composite methods have witnessed tremendous developments in computing the thermodynamic properties as well as the barrier heights. However, their performance in realm of the vertical electron processes of molecular systems has been rarely explored. In this study, we for the first time benchmarked the model chemistry composite methods(e.g., CBS-QB3, G4 and W1BD) in comparison with the commonly used Koopmans' s theorem(KT), electron propagator theory(e.g., OVGF, D2, P3 and P3+) and CCSD(T) methods in calculating the VIP for up to 613 molecular systems with available experimental measurements. The large-scale test calculations strongly showed that the CBS-QB3 model chemistry composite technique can be well recommended to calculate VIP from the perspectives of accuracy, economy and applicability. Notably, the VIP values of up to 7 molecules were identified to have the absolute errors of larger than 0.3 e V at all calculation levels,which have strong hints that their VIP experimental values should be re-investigated.

关键词： CBS-QB3 Composite methods Model chemistry Molecular systems Vertical ionization potential

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