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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

A Systematic Thermodynamic Analysis of the Thermally Regenerative Electrochemical Cycle

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Journal of Thermal Science 2025年第02期 389-399页

作者： FU Shen TANG Xin LIU Penghui LI Guiqiang Department of Thermal Science and Energy Engineering University of Science and Technology of China

Thermally regenerative electrochemical cycle(TREC) is a novel and effective heat-to-electricity technology for harvesting low-grade ***,reported TREC analyses have been based on the Stirling cycle of ideal infinite heat source and infinite time for heat ***,this will lead to inaccuracy when the scenario deviates from the ideal *** this study,a systematic thermodynamic analysis on TREC is performed to address this *** on different heat transfer situations,the description of thermodynamic processes and the corresponding mathematical models are *** the same time,the TREC system,with the solar collector as the high-temperature heat source and the environment as the low-temperature heat source,is employed as a *** the study delved into discrepancies arising from incongruences between the practical operational process and the traditional ideal analytical methodologies,along with an investigation of the different thermal environment impact on system *** findings suggest that the finite analysis method should be used when the actual operating time of the system is shorter than the desired equilibrium *** the contrary,the use of the infinite analysis method,in this case,produces an error,the magnitude of which is directly related to the operating time,whereas when the time reaches 80% of the equilibrium time the error can be controlled to less than 2%.The influence of the heat source on the operating phase of the system is mainly in the temperature equilibrium and the rate of temperature *** effect is proportional to the thermal capacitance and is also positively related to the system ***,to improve system performance,it is recommended that a high-temperature heat source with a high ratio of thermal capacitance to system thermal capacitance should be selected and that the response time should slightly exceed the system equilibrium duration.

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MODIFIED BRASCAMP-LIEB INEQUALITIESSAND LOG-SOBOLEV INEQUALITIES FOR ONE-DIMENSIONAL LOG-CONCAVE MEASURE

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Acta Mathematica Scientia 2025年第1期45卷 104-117页

作者： Denghui WU Jiazu ZHOU College of Science Northwest A&F UniversityYangling712100China School of Mathematics and Big Data Guizhou Education UniversityGuiyang550018China

In this paper,we develop Maurey’s and Bobkov-Ledoux’s methods to prove modified Brascamp-Lieb inequalities and log-Sobolev inequalities for one-dimensional log-concave *** prove these inequalities,the harmonic Prékopa-Leindler inequality is *** prove that these new inequalities are more efficient in estimating the variance and entropy for some functions with exponential terms.

关键词： Brunn-Minkowski inequality Prékopa-Leindler inequality Brascamp-Lieb inequality log-Sobolev inequality log-concave measure

The low-latitude sodium layer:comparative data from lidar observations at Hainan,China and São Paulo,Brazil

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Earth and Planetary Physics 2025年第1期9卷 39-53页

作者： Fang Wu Jing Jiao GuoTao Yang LiFang Du ZhengKuan Liu HaoRan Zheng JiXin Guo ShaoHua Gong YaJun Zhu State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Hainan National Field Science Observation and Research Observatory for Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China China-Brazil Joint Laboratory for Space Weather NSSC/INPESão Josédos Campos 12227-010Brazil School of Physics and Electronics Engineering Hainan Normal UniversityHaikou 571158China

Physical and chemical processes observed in the mesosphere and thermosphere above the Earth’s low latitudes are complex and highly interrelated to activity in the low-latitude *** sodium detected by lidar can yield clues to dynamic and chemical processes in these spatial layers above the Earth’s *** paper is based on sodium layer data collected at two low-latitude stations,one in the northern hemisphere and one in the *** low-latitude sodium layer exhibits conspicuous seasonal variations in shape,density,and altitude;these variations are similar between Earth’s hemispheres:sodium layer density at both stations reaches its seasonal maximum in autumn and minimum in ***,maximal Na density over Brazil is greater than that over *** variations of Na density above the two low-latitude stations are also similar;at both,maxima are observed before *** variations of the Na layer over Brazil that differ from those observed in the northern hemisphere may be related to the South Atlantic Magnetic Anomaly(SAMA)or fountain *** suggest that low-latitude Na layer data may provide useful additional evidence that could significantly improve the low-latitude part of the WACCM-Na model.

关键词： metallic sodium layer seasonal variation nocturnal variation lidar

Zooplankton community composition in summers of 2021and 2022 in the northern East China Sea and Yellow Sea,and their linkage with abiotic and biotic factors

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Journal of Oceanology and Limnology 2025年第1期43卷 159-176页

作者： Dongjie GUO Fang ZHANG Shuangyan ZHANG Song SUN CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China College of Marine Science University of Chinese Academy of SciencesQingdao 266071China Jiaozhou Bay National Marine Ecosystem Research Station Institute of OceanologyChinese Academy of SciencesQingdao 266071China

The northern East China Sea and Yellow Sea are highly dynamic marginal seas,serving as important fishing grounds and primary areas for *** zooplankton community structure,including abundance,biovolume,and normalized biovolume size spectra(NBSS)within this ecosystem in summers 2021 and 2022 was assessed through ZooScan digital imaging *** abundances of zooplankton in summers 2021 and 2022 were 3364.22±2190.53 and 4435.52±2520.06 inds./m^(3),respectively,whereas the corresponding biovolumes were 649.10±519.63 and 1064.86±1254.87 mm^(3)/m^(3),*** copepods as the dominant zooplankton functional group in terms of abundance in both years,while chaetognath and medusae were the dominant groups in terms of *** dominance of medusae and chaetognath in terms of biovolume,along with the flatter slopes of NBSS compared to a stable community,indicated that more energy accumulated in gelatinous organisms within the study *** were significant positive relationships between temperature and tunicates or medusae,with a significantly higher population size observed in summer 2022 than in *** lower abundance and biovolume of zooplankton,mainly of small copepods,in summer 2021 may be related to the larger population size of the large jellyfish and the proliferation of green *** investigation provided basic data and fundamental insights for achieving a comprehensive understanding of zooplankton community structure and their long-term dynamics.

关键词： zooplankton community spatial distribution global warming Nemopilema nomurai Ulva prolifera

Magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma Qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle Cheng Dong He Qiang Sun Xuhang Ma Francesco Lamberti Zhubing He Department of Materials Science and Engineering Institute of Innovative Materials(I2M)Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation(FSSEG)Southern University of Science and Technology(SUSTech)Shenzhen 518055GuangdongChina Core Research Facilities Southern University of Science and TechnologyShenzhen 518055GuangdongChina Department of Chemical Sciences Department of Industrial EngineeringUniversity of PadovaVia Gradenigo 6a35131 PadovaItaly

Widely used spin-coated nickle oxide (NiOx) based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells (PSCs) fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency (PCE) of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10(9H)-yl)butyl)p hosphonic acid (DMAcPA),the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Nickle oxide Magnetron sputter Defect Stability Perovskite solar cell

How to select favorable and promising alleles and genotypes for breeding: A case study of rice blast resistance genes in Southern and Northeastern China

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Crop Journal 2025年第1期13卷 104-114页

作者： Wang, Xing Wang, Jinyan Zhang, Yaling Yao, Yongxiang Sun, Ying Lin, Liping Ye, Xuemei Li, Rongbai Liang, Zhibin Deng, Yizhen Pan, Qinghua Rice Blast Research Center South China Agricultural University Guangzhou 510642 Guangdong China Integrative Microbiology Research Center South China Agricultural University Guangzhou 510642 Guangdong China College of Agronomy Heilongjiang Bayi Agricultural University Daqing 163319 Heilongjiang China Dandong Academy of Agricultural Sciences Dandong 118109 Liaoning China College of Agriculture Guangxi University Nanning 510642 Guangxi China

Asian rice comprises two major subspecies: Xian (X) and Geng (G), and the diverged resistance genes (R) have provided a foundation for breeding improved cultivars to control rice blast disease. After conducting two-phase allele mining using six updated FNP marker systems, the functional haplotypes at Pit, Pib, and Pi63 strictly diverged into the X-populations and were defined as X-R loci, while those at Pi54, Pi37, and Pi36 into the G-populations as G-R loci. The genic diversity at the three X-R loci (16 alleles) was twofold higher than that at the three G-R loci (8 alleles), and the allelic diversity in the Southern region (21 alleles) was nearly double that in the Northeastern region (11 alleles). Both observations reflect a significant difference in genetic diversity between X- and G-populations, and indicate that the effective R-genes mainly originated from X-subspecies. Based on the allelic structures characterized by a set of 10 parameters, 8 and 16 alleles were respectively recognized as favorable and promising ones for the regional breeding programs. The genotypic structures of the two regional populations were almost different, indicating that the diverged alleles have been further assembled into two series of regional genotypes through long-term breeding programs, despite the presence of one-third of region-common alleles. The genotypic diversity in the Southern region (55 genotypes) was nearly twice as high as that in the Northeastern region (28), which perfectly reflects the aforementioned differences in both genic and allelic diversities. After analyzing the genotypic structures using a set of 13 parameters, 4 and 23 genotypes, respectively, can be recommended as the favorable and promising ones for the regional breeding programs. The case study serves as a concrete sample of how to identify the favorable and promising alleles and genotypes, and beneficial parents based their comprehensive population structures for gene-designed breeding. © 2025 Crop Sc

关键词： Allelic and genotypic population structures Favorable allele and genotype Promising allele and genotype Rice blast Xian and Geng type resistance genes

2D copper-iron bimetallic metal-organic frameworks for reduction of nitrate with boosted efficiency and ammonia selectivity

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Journal of Environmental Sciences 2025年第3期149卷 374-385页

作者： Qian Ma Yinghao Xue Chuning Zhang Yanyan Chen Wei Teng Hua Zhang Jianwei Fan State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China

Electrocatalytic reduction of nitrate to ammonia has been considered a promising and sustainable pathway for pollutant treatment and ammonia has significant potential as a clean ***,the method has received much *** this work,Cu/Fe 2D bimetallic metal-organic frameworks were synthesized by a facile method applied as cathode materials without high-temperature *** centers(Cu,Fe)with enhanced intrinsic activity demonstrated higher removal ***,the 2D nanosheet reduced themass transfer barrier between the catalyst and nitrate and increased the reaction ***,the catalysts with a 2D structure showed much better removal efficiency than other structures(3D MOFs and BulkMOFs).Under optimal conditions,Cu/Fe-2D MOF exhibited high nitrate removal efficiency(87.8%)and ammonium selectivity(89.3%)*** ammonium yielded up to significantly 907.2μg/(hr·mg_(cat))(7793.8μg/(hr·mg_(metal)))with Faradaic efficiency of 62.8%at an initial 100 mg N/*** catalyst was proved to have good stability and was recycled 15 times with excellent *** simulations confirm the reduced Gibbs free energy of Cu/Fe-2D *** study demonstrates the promising application of Cu/Fe-2D MOF in nitrate reduction to ammonia and provides new insights for the design of efficient electrode materials.

关键词： Metal-organic frameworks Electrochemical denitrification Ammonium selectivity 2D bimetal materials

Epigenetics disruptions enabled by porphyrin-derived metal-organic frameworks disarm resistances to sonocatalytic ROS anti-tumor actions

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Fundamental Research 2025年第1期5卷 296-306页

作者： Zhang, Yan Du, Dou Fang, Chao Yu, Xin Fang, Yujia Liu, Xinyu Ou, Di Yin, Haohao Liu, Hui Wang, Taixia Lu, Lu Li, Xiaolong Zhang, Kun Central Laboratory Ultrasound Research and Education Institute Shanghai Tenth People's Hospital Tongji University School of Medicine Tongji University No. 301 Yan-chang-zhong Road Shanghai 200072 China Department of Medical Oncology Shanghai Pulmonary Hospital Thoracic Cancer Institute Tongji University School of Medicine Tongji University No. 507 Zheng‑Min Road Shanghai 200433 China

Post-transcriptional epigenetic modifications provide numerous implications for tumor progression, metastasis and recurrence, which also pose resistances to reactive oxygen species (ROS)-based anti-tumor. Herein, we proposed an epigenetic deubiquitination disruption strategy to disarm the ubiquitination-deubiquitination balance-induced resistances to ROS production and ROS-based anti-tumor action for potentiating sonodynamic treatment (SDT) efficiency. To end it, porphyrin-derived metal-organic framework (MOF) sonocatalytic nanoplatforms were developed to load deubiquitination inhibitors (i.e., Auranofin). Ultrasound-triggered Auranofin release from PCN224@Au has been validated to blockade the deubiquitinating process and drive proteasome-mediated target protein degradation. The epigenetic deubiquitination disruption not only synergized with MOF-mediated sonocatalytic ROS production, but also inactivate deubiquitinating enzymes, blockade the deubiquitination process and further remove these resistances, both of which mutually behaved as reciprocal impetuses to significantly magnify SDT outcomes against liver cancers. Such a deubiquitination-engineered disruption approach finds an unprecedented pathway to disarm deubiquitination-induced resistances to SDT and other ROS-based anti-tumor means, which also enlightens us to establish other post-transcriptional epigenetic modification disruption strategies to re-program the tumor microenvironment and elevate the anti-tumor efficiency of various treatment methods (e.g., immunotherapy). © 2022

关键词： Anti-tumor action Epigenetics engineering Reactive oxygen species resistance Sonocatalysis Ubiquitylation modulation