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Propagating subduction initiation of the caroline Plate at the Mussau Trench

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Science china Earth Sciences 2025年第1期68卷 253-269页

作者： chun-Feng lI Yongkang DENG Tao wu Dongdong DONG Guoliang ZHANG Jiazheng ZHANG Yutao lIU Yaqing lI Fugui TANG lulu ZHANG Department of Marine Sciences Zhejiang University laboratory of Marine Mineral Resources Laoshan Laboratory Key lab of Marine Geology and Environment Institute of Oceanology Chinese Academy of Sciences Key lab of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Science & Technology on Integrated Information System lab Institute of Software Chinese Academy of Sciences

New seismic imaging from the Mussau Trench confirms that, under horizontal compression on an oceanic plate boundary, it is within the young and weak oceanic plate that a trench will develop, and it is the young plate, not so long after its birth, that starts to subduct toward the old plate. The Mesozoic Pacific Plate cannot easily bend, under the joint horizontal compression and vertical gravity pull, even with a pre-existing weak zone in place and with a large age offset across the plate boundary. The bending of the caroline Plate near the northern end of the Mussau Trench started only after a long-time span of trench migration, and/or after a prolonged transition from initial compression to trench development. Highly contrasting trench deformation and sedimentary accretion between two parallel seismic sections support an evident migration of underthrusting or significant longitudinal heterogeneity along the trench. The swift transition from underthrusting to non-thrusting can be explained by a counter-clockwise rotation of the caroline Plate. That miniature accretionary wedges develop even before the subduction initiates imply strong compression and uplifting before the underthrusting can kick-start. Rotation of the caroline Plate have been halted as the Mussau Trench is seismically rather quiet and the lyra Trough to the east shows relaxational extension.

关键词： Mussau Trench Subduction initiation Seismic reflection caroline Plate

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Preparation of co/S co-doped carbon catalysts for excellent methylene blue degradation

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 169-181页

作者： Haixu li Haobo He Tiannan Jiang Yunfei Du Zhichen wu liang Xu Xinjie Wang Xiaoguang liu Wanhua Yu Wendong Xue School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Jinyu Tongda Refractory Technologies co. Ltd.Beijing 100085China

S and co co-doped carbon catalysts were prepared via pyrolysis of MOF-71 and thiourea mixtures at 800℃at a mass ratio of MOF-71 to thiourea of 1:0.1 to effectively activate peroxymonosulfate(PMS)for methylene blue(MB)*** effects of two different mixing routes were identified on the MB degradation ***,the catalyst obtained by the alcohol solvent evaporation(MOF-AEP)mixing route could degrade 95.60%MB(50 mg/l)within 4 min(degradation rate:K=0.78 min^(-1)),which was faster than that derived from the direct grinding method(MOF-DGP,80.97%,K=0.39 min^(-1)).X-ray photoelectron spectroscopy revealed that the co-S content of MOF-AEP(43.39at%)was less than that of MOF-DGP(54.73at%),and the proportion of c-S-c in MOF-AEP(13.56at%)was higher than that of MOF-DGP(10.67at%).Density functional theory calculations revealed that the adsorption energy of co for PMS was -2.94 eV when sulfur was doped as c-S-c on the carbon skeleton,which was higher than that when sulfur was doped next to cobalt in the form of co-S bond(-2.86 eV).Thus,the c-S-c sites might provide more contributions to activate PMS compared with ***,the degradation parameters,including pH and MOF-AEP dosage,were ***,radical quenching experiments and electron paramagnetic resonance(EPR)measurements revealed that ^(1)O_(2)might be the primary catalytic species,whereas·O~(2-)might be the secondary one in degrading MB.

关键词： advanced oxidation process alcohol solvent evaporation hydrogen bond S and co co-doped carbon catalysts wastewater remediation

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Highly mass activity electrocatalysts with ultralow Pt loading on carbon black for hydrogen evolution reaction

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 182-190页

作者： Shaorou Ke Yajing Zhao Xin Min Yanghong li Ruiyu Mi Yangai liu Xiaowen wu Minghao Fang Zhaohui Huang Engineering Research center of Ministry of Education for Geological carbon Storage and low carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastersNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China

Pt-based nanocatalysts offer excellent prospects for various ***,the low loading of Pt with excellent performance for efficient and stable nanocatalysts still presents a considerable *** this study,nanocatalysts with ultralow Pt content,excellent performance,and carbon black as support were prepared through in-situ ***~2-nm particles uniformly and stably dispersed on carbon black because of the strong s-p-d orbital hybridizations between carbon black and Pt,which suppressed the agglomeration of Pt *** unique structure is beneficial for the hydrogen evolution *** catalysts exhibited remarkable catalytic activity for hydrogen evolution reaction,exhibiting a potential of 100 mV at 100 mA·cm^(-2),which is comparable to those of commercial Pt/c *** activity(1.61 A/mg)was four times that of a commercial Pt/c catalyst(0.37 A/mg).The ultralow Pt loading(6.84wt%)paves the way for the development of next-generation electrocatalysts.

关键词： hydrogen evolution reaction ultralow platinum in-situ synthesis ultrasound

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Boosting cationic and anionic redox activity of li-rich layered oxide cathodes via li/Ni disordered regulation

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Journal of Energy chemistry 2025年第1期100卷 533-543页

作者： Zewen liu Zhen wu Hao Wang Xudong Zhang Yuanzhen chen Yongning liu Shengwu Guo Shenghua chen Yanli Nan Yan liu State Key laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University School of Materials Science and Engineering Xi'an University of Architecture and Technology Hefei Advanced computing center Operation Management corp ltd Network Information center Xi'an Jiaotong University

lithium-rich layered oxides （llOs） are increasingly recognized as promising cathode materials for nextgeneration high-energy-density lithium-ion batteries （lIBs）.However,they suffer from voltage decay and low initial coulombic efficiency （IcE） due to severe structural degradation caused by irreversible O ***,we introduce a three-in-one strategy of increasing Ni and Mn content,along with li/Ni disordering and TM–O covalency regulation to boost cationic and anionic redox activity simultaneously and thus enhance the electrochemical activity of *** target material,li1.2Ni0.168Mn0.558co0.074O2（l1）,exhibits an improved IcE of 87.2%and specific capacity of 293.2 mA h g-1and minimal voltage decay of less than 0.53 m V cycle-1over 300 cycles at 1c,compared to li1.2Ni0.13Mn0.54co0.13O2（ls）(274.4 mA h g-1for initial capacity,73.8%for IcE and voltage decay of 0.84 mV/cycle over 300 cycles at 1c).Theoretical calculations reveal that the density of states （DOS） area near the Fermi energy level for l1 is larger than that of ls,indicating higher anionic and cationic redox reactivity than ***,l1 exhibits increased O-vacancy formation energy due to higher li/Ni disordering of 4.76%（quantified by X-ray diffraction Rietveld refinement） and enhanced TM–O covalency,making lattice O release more difficult and thus improving electrochemical *** increased li/Ni disordering also leads to more Ni2+presence in the li layer,which acts as a pillar during li+de-embedding,improving structural *** research not only presents a viable approach to designing low-co llOs with enhanced capacity and IcE but also contributes significantly to the fundamental understanding of structural regulation in high-performance lIB cathodes.

关键词： Ice

crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/cuIn(Ga)Se_(2)Tandem Solar cells

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Nano-Micro letters 2025年第1期17卷 205-215页

作者： cong Geng Kuanxiang Zhang changhua Wang chung Hsien wu Jiwen Jiang Fei long liyuan Han Qifeng Han Yi‑Bing cheng Yong Peng State Key laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China college of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key laboratory of Metal Matrix composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/cuIn(Ga)Se_(2)(cIGS)tandem solar cells(TScs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial cIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough cIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/c60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,liF is used to create this field effect,repelling hole carriers away from the PVK and c60 interface and thus reducing *** a result,a 2-T PVK/cIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/cIGS TScs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/cIGS tandem solar cells.

关键词： PVK/cIGS TScs Irregular rough surfaces Modulating the growth PVK/c60 interface recombination

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g-c_(3)N_(4)nanosheets coupled with coSe_(2)as co-catalyst for efficient photooxidation of xylose to xylonic acid

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Green Energy & Environment 2025年第1期10卷 231-238页

作者： Qi Hao Yijun liu Ren Zou Ge Shi Shilian Yang linxin Zhonga wu Yang Xiao chi Yunpeng liu Shimelis Admassie Xinwen Peng State Key laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhou510641GuangdongChina Hainan Key laboratory of Storage&Processing of Fruits and Vegetables Agricultural Products Processing Research InstituteChinese Academy of Tropical Agricultural SciencesZhanjiangGuangdong524001China Department of chemistry and centre for Advanced 2D Materials(cA2DM)National University of Singapore 3 Science Drive 3 Singapore117543Singapore School of Materials Science and Hydrogen Energy Foshan UniversityFoshan528231GuangdongChina Department of chemistry Addis Ababa UniversityPO BOX 1176Addis AbabaEthiopia

Photocatalysis has emerged as an effective approach to sustainably convert biomass into value-added ***_(2)is a promising nonprecious,efficient cocatalyst for photooxidation,which can facilitate the separation of photogenerated electron–holes,increase the reaction rates,and enhance photocatalytic *** this work,we synthesized a stable and efficient photocatalysis system of coSe_(2)/g-c_(3)N_(4)through attaching coSe_(2)on g-c_(3)N_(4)sheets,with a yield of 50.12%for the selective photooxidation of xylose to xylonic *** light illumination,the photogenerated electrons were prone to migrating from g-c_(3)N_(4)to coSe_(2)due to the higher work function of coSe_(2),resulting in the accelerated separation of photogenerated electron–holes and the promoted ***,this study reveals the unique function of coSe_(2),which can significantly promote oxygen adsorption,work as an electron sink and accelerate the generation of$O2-,thereby improving the selectivity toward xylonic acid over other *** work provides useful insights into the design of selective photocatalysts by engineering g-c_(3)N_(4)for biomass high-value utilization.

关键词： Biomass photooxidation Hemicelluloses Xylose g-c_(3)N_(4) Xylonic acid

constructing quasi-2D perovskite to collect hot carriers to reduce open-circuit voltage loss for efficient inverted perovskite solar cells

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Science china chemistry 2025年

作者： lei Gu Xing li chao wu Yang Feng chunming Yang lin Song Frontiers Science center for Flexible Electronics Institute of Flexible Electronics Northwestern Polytechnical University Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences

Inverted perovskite solar cells （PScs） have received great attention owing to the high certificated power conversion efficiency（PcE） reaching 26.7%. However, interfacial charge recombination is far superior to perovskite bulk charge recombination due to the use of fullerenes and their derivatives in inverted perovskite solar cells, which induces devastating open circuit voltage（VOc） losses. For this reason the present work attempts to use 4-chloropiperidine hydrochloride for the upper surface modification of perovskite to construct a quasi-two-dimensional （2D） structure with suitable 2D layer widths （n=2, 3 dominant）,which has a smaller electron carrier transport barrier without sacrificing short-circuit current （JSc） in the device. This strategy effectively passivates the interfacial defect states while promoting energy level alignment to achieve carrier dissociation and equilibrium transport at the interface, which in turn resulted in improved fill factor （FF）. In addition, additional energy levels are provided by 2D perovskites to collect hot carriers, resulting in improved device open circuit voltage （VOc）. As a result, the device PcE increases from 22.37%to 24.11%after the 4cPD treatment. In addition, the 4cPD-treated PScs maintain 90%of the initial PcE after storage in an N2atmosphere at 50°c for 1,080 h, whereas the control devices show a 15%PcE loss under the same aging conditions. This work provides new opportunities to suppress interfacial charge recombination in inverted devices.

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Smart windows with high optical transparency and structural color

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Science china chemistry 2025年

作者： Youtong wu Xueting li Yiwen li Hao Wang Yuqi Zhang Xihua lu college of chemistry and chemical Engineering Donghua University Fujian Nano-Micro Advanced Materials Sci.& Tech.co.ltd. Jinjiang Innovation Entrepreneurship and Creativity Park Shanghai Evanston Advanced Materials Sci.& Tech.co.ltd.

In recent years, thermochromic smart windows have played an important role in enhancing energy efficiency and contributing to carbon neutrality in building energy consumption. However, thermal-shielding smart windows with high visible light modulation and structural colors are rarely reported. This study focuses on the development of thermochromic smart windows utilizing poly（N-isopropylacrylamide）(PNIPAm)-based nanogels, which exhibit dynamic solar modulation and high visible light transmission without additional energy input. Unlike traditional electrochromic materials such as tungsten trioxide, these smart windows achieve structural color states through the self-assembly of nanogels, eliminating the need for inorganic materials. The fabricated hydrogel contains thermo-responsive poly（N-isopropylacrylamide-random-acrylic acid-random-N-tert-butyl acrylamide）P（NIPAm-r-AA-r-TBA）(PNTA) nanogels with tunable phase transition temperatures（Tp） that align with ambient *** smart windows demonstrate excellent stability over 100 heating-cooling cycles and significant temperature regulation,achieving an indoor temperature modulation of 10 °c and energy savings of 14.24 KJ m-3compared with normal windows. The production process is simple and scalable, making it feasible for industrial applications. Furthermore, these smart windows offer additional functionalities such as information encryption, adding value to their practical application.

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FHl2 deficiency aggravates candida albicans infection through decreased myelopoiesis

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Science china life Sciences 2025年

作者： Rongmei Gao Kanchao chen Yimin Wang Rongxia Guo Xiaoyu Zhang Peng wu Weili Wang Qingxiang Huang Xuemei Xie Shangda Yang Yanling lü Qian Ren Fei liu Song chen Fengxia Ma Tao cheng Hui cheng State Key laboratory of Experimental Hematology National Clinical Research Center for Blood Diseases Haihe Laboratory of Cell Ecosystem Institute of Hematology & Blood Diseases Hospital Chinese Academy of Medical Sciences & Peking Union Medical College cAMS center for Stem cell Medicine PUMC Department of Stem Cell and Regenerative Medicine

Hematopoiesis is a finely tuned process that generates all blood cell types through self-renewal and differentiation, which is crucial for maintaining homeostasis. Acute infections can prompt a hematopoietic response known as emergency myelopoiesis. In this study, using a candida albicans (c. albicans) infection model, we demonstrated for the first time that disruption of Fhl2 led to increased fungal burden,heightened inflammatory response and reduced survival rates. Impaired myeloid hematopoiesis and immune cell production were evident, as proved by the decreased numbers of hematopoietic stem and progenitor cells (HSPcs) and granulocytes in the bone marrow of Fhl2-deficient mice. In conclusion, FHl2 regulated emergency myelopoiesis in response to c. albicans, affecting the host’s defense against pathogens.

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