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CaH2-promoted activity.of Ni-carbonate interface for Co2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： jin-Peng Wang Guo-Cui Mao Hui-Lin Jiang Bao-Xia dong yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the Co2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity.of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCo3enhances the Co2methanation activity.of the *** Co2conversion for Ni/CaH2-CaCo3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCo3（31.6%） and Ni/CaH2-Cao （42.4%） ***,the Ni/CaH2-CaCo3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity.of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCo3to generate medium basic sites （oH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that Co2activation occurs at the hydroxyl group （oH） on the CaH2-modified Ni-carbonate surface,leading to the formation of Co3H****,our study has confirmed that Co2methanation over the Ni/CaH2-CaCo3catalysts proceeds via the formate pathway.

关键词： Co 2 methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface

Alkaline leaching mechanism of MSWI bottom ash: the pivotal role of Si(Al) chemical bonding environments

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Science China Technological Sciences 2025年

作者： Ningning SHAo Zekun JIAo Weipeng FENG yu jin Fanlong KoNG Zhijun dong Zuotai ZHANG Institute of Technology for Marine Civil Engineering Shenzhen Institute of Information Technology (SZIIT) Guizhou NASH Ecological Technology Co. LTD School of Environmental Science and Engineering Key Laboratory of Municipal Solid Waste Recycling Technology and Management of Shenzhen City Southern University of Science and Technology (SUSTech)

Municipal solid waste incineration bottom ash(MSWIBA) is a complex assemblage of aluminosilicate materials encompassing diverse solid wastes. Thus, its complexity poses great challenges to their resource utilization. For the sake of the alkali activation use of MSWIBA, this work focused on the characterizations and alkaline leaching experiments of various classified MSWIBA after sorting. Among the different categories of MSWIBA, waste glass(BA-G) and other unidentified slags(BA-o) were identified as potential precursors for alkali activation use. The alkaline leaching experiments proved that alkaline concentration, reaction temperature, reaction time, and raw material classification influenced the leaching process and results. Among these, the Si/Al chemical bonding environments from the material type played a pivotal role. When the materials had Qn(n>2) as the primary bonding structure, steric hindrance by the chain frameworks affected the alkali dissolution process, resulting in gradual disintegration from the outer layers inward. For the materials dominated by Q1frameworks, oH-could penetrate the frameworks, leading to their rapid depolymerization and outward dissolution. overall, the Si/Al bonding environment played a crucial role in alkaline dissolution, providing theoretical guidance for classifying the alkali-activation utilization of MSWIBA and other aluminosilicate solid wastes.

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Metastable seed-crystals: epitaxial growth of branched-array.organic heterostructure nanowires

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Science China Chemistry 2025年

作者： jin Feng Zhen-yu Geng Ting-y.o Song ying-Xin Ma Chuan-Zeng Wang Wei Zhang Hong-Tao Lin jin Zhou Shu-Ping Zhuo Shu-Hai Chen Xue-dong Wang School of Chemistry and Chemical Engineering Shandong University of Technology Institute of Functional Nano & Soft Materials (FUNSoM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University College of Chemistry and Chemical Engineering Hunan Normal University

Tunable light–matter interactions are exhibited by.organic low-dimensional crystals, making these crystals a promising platform for organic photonics. However, the precise synthesis of organic low-dimensional crystals remains challenging due to the stochastic nature of molecular nucleation processes. Herein, the directed nucleation process is driven by the introduction of metastable seed-crystals as the trunk, which ultimately leads to branched-array.organic heterostructures. The successful formation of organic heterostructures with high-density branched arrays is attributed to the highest attachment energy (Eatt（023）=-104.25 kcal mol-1) of the exposed （023） crystal plane during the seed-crystal growth route. Significantly, these as-prepared heterostructures inherently have an ultralow lattice mismatch ratio η of 0.7%between trunk and branch, which contributes to the multi-channel photon transportation. Therefore, this work provides valuable insights into a versatile synthetic strategy for accessing low-dimensional heterostructures for integrated optoelectronics.

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Six-fold swelling expansion microscopy assisted cell painting for high-content phenotypic screening

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optoelectronics Letters 2025年

作者： Junfang XIE yipeng dong jin WANG Zhichao DENG Jianguo TIAN Qing yE Key Laboratory.of Weak-Light Nonlinear Photonics， Ministry.of Education， School of Physics and TEDA Applied Physics， Nankai University

Imaging-based phenotypic screening uses cellular phenotypes to describe the drug performance， which generally focuses on single cellular feature， lacking of a comprehensive characterization. Here， we propose a high content phenotypic screening method based on expansion microscopy (ExM) assisted Cell Painting， which enables multi-channel imaging with approximately 50 nm resolution. As a demonstration， we applied this method to a phenotypic screening involving five drugs. The morphological attributes of three subcellular structures were summarized to consist a “fingerprint” describing the drug effect. The proposed method can provide comprehensive and detailed clues for drug evaluation， enriching the content of phenotypic screening.

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基于残差U-net网络的地震资料分辨率提高方法

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中国海洋大学学报（自然科学版） 2025年第1期55卷 140-148页

作者：董博艺张进中国海洋大学海洋地球科学学院山东青岛266100 青岛海洋科技中心海洋矿产资源评价与探测技术功能实验室山东青岛266237 中国海洋大学海底科学与探测技术教育部重点实验室山东青岛266100

高分辨率地震资料处理是获取高品质地震资料、实现薄储层良好地震地质解释的关键。传统提高地震分辨率的方法应用条件苛刻,关键参数求取复杂,在实际应用中受到诸多限制。深度学习中的U-net网络以纯数据驱动的优势,可学习低分辨率地震记... 详细信息

高分辨率地震资料处理是获取高品质地震资料、实现薄储层良好地震地质解释的关键。传统提高地震分辨率的方法应用条件苛刻,关键参数求取复杂,在实际应用中受到诸多限制。深度学习中的U-net网络以纯数据驱动的优势,可学习低分辨率地震记录到高分辨率标签的非线性关系,实现地震资料的高分辨率处理。本文设计了残差U-net网络结构,同时提出了基于概率密度函数控制的同分布反射系数集生成方法,将测井反射系数的概率密度函数作为一种先验约束信息融入训练样本,不仅保证了足够的同分布样本来训练网络,还确保了训练样本更符合工区实际情况,以此提高模型预测的准确性。模型测试和实际资料应用结果表明,本文提出的方法能够有效应用于地震资料分辨率的提高,同时拓宽频带。

关键词：提高分辨率 U-net 残差结构同分布

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Potassium ions and cyano group modified g-C3N4 for effective generation of H2o2 through two-electron oxygen reduction

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Science China Chemistry 2025年第1期 192-200页

作者： dongying Wang Shulan Pu yongmin Chen Ke Lei yujie Duan Linjiao Mao Xuhui Zeng Xi Luo yuntao Zhang yuqin dong jin Zhong Zhang yan Sun School of Mechanical Engineering Chengdu University Department of Chemistry and Biochemistry University of California

Potassium ions （K+） doped graphitic carbon nitride （g-C3N4） was prepared by a thermal etching method using potassium hydroxide （KoH） as an ion *** transform infrared spectroscopy （FTIR） and X-ray photoelectron spectroscopy （XPS）results showed that the generation of the cyano group was detected while introducing K+.Under simulated sunlight irradiation,the sample with a K+doping amount of 10%showed the highest hydrogen peroxide （H2o2） generation rate of2,140.2μmol *** apparent quantum yield （AQy） at 400 nm and the solar-to-chemical conversion （SCC） are 4.35%and1.23%,respectively.K+acted as a bridge between g-C3N4layers,which enhanced charge transfer ***,the cyano group enhanced the adsorption capacity.of protons （H+） and promoted the yield of *** catalyst exhibited excellent photocatalytic stability based on four-cycle *** addition,a mechanism study showed that superoxide radicals （·o2-）were the most important active species in the reaction *** production of H2o2was achieved through consecutive single-electron *** study deepens the understanding of the oxygen reduction reaction process and opens up a new venue for improving H2o2generation.

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Graphene Aerogel Composites with Self‑organized Nanowires‑Packed Honey.omb Structure for Highly Efficient Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第2期17卷 533-547页

作者： Xiao you Huiying ouyang Ruixiang Deng Qiuqi Zhang Zhenzhong Xing Xiaowu Chen Qingliang Shan jinshan yang Shaoming dong State Key Laboratory.of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Key Laboratory.of Inorganic Coating Materials CAS Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Center of Materials Science and optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210People’s Republic of China School of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China University.of Chinese Academy.of Sciences Beijing 100039People’s Republic of China

With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave ***,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss *** macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene *** unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric ***,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 ***,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.

关键词： Hierarchical porous structure Interface High-temperature resistance Graphene aerogel composites Electromagnetic wave absorption

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Effect of Ti Additions on Mechanical and Thermodynamic Properties of W-Ti Alloys: A First-principles Study

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Journal of Wuhan University.of Technology(Materials Science) 2025年第1期40卷 246-257页

作者： ZHANG Jian NIE Wei HUANG jin ZHU Ke LIU Ruxia ZHANG Ruizhi LUo Guoqiang SHEN Qiang State Key Laboratory.of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China

The mechanical and thermodynamic properties of W-Ti alloys(including W_(15)Ti_(1),W_(14)Ti_(2),W_(12)Ti_(4) and W_(8)Ti_(8) alloys)were investigated by the first-principles approach based on density functional *** results indicate that W-Ti alloys except W_(8)Ti_(8) are thermodynamically *** modulus and hardness of W-Ti alloys are smaller than those of pure tungsten and gradually decrease with increasing Ti ***,their B/G ratios and Poisson's ratios exceed those of pure tungsten,suggesting that the introduction of Ti decreases the mechanical strength while enhancing the ductility.of W-Ti *** thermal expansion coefficients for W-Ti alloys all surpass those of pure tungsten,indicating that the introduction of titanium exacerbates the thermal expansion behavior of W-Ti ***,elevated pressure has the capacity to suppress the thermal expansion tendencies in titanium-doped tungsten *** study.offers theoretical insights for the design of nuclear materials by exploring the mechanical and thermodynamic properties of W-Ti alloys.

关键词： first-principles mechanical properties thermodynamic properties tungsten-titanium alloys

From occupants to occupants:A review of the occupant information understanding for building HVAC occupant-centric control

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Building Simulation 2022年第6期15卷 913-932页

作者： Tao yang Arkasama Bandyopadhyay Zheng o’Neill jin Wen Bing dong mike walker’66 department of mechanical engineering texas a&m universitycollege stationtx77843usa department of civil architectural&environmental engineeringdrexel universityphiladelphiapa19104usa department of mechanical and aerospace engineering syracuse universitysyracuseny13244usa

occupants are the core of the built *** heating,ventilation,and air-conditioning(HVAC)systems operate with predefined schedules and maximum occupancy assumptions with no consideration of specific occupant *** generalized assumptions usually do not align with the actual demand and result in over-conditioning and occupant *** recent years,with the aid of Information&Communication Technology(ICT)and Computer Science(CS),it is possible to acquire real-time and accurate occupant information to satisfy the exact thermal requirement through specific HVAC control in one particular built *** mechanism is called HVAC“occupant-centric Control(oCC).”HVAC oCC strategy starts with collecting the occupant’s information(e.g.,presence/absence)and then applies it to meet the occupant’s requirement(e.g.,thermal comfort).However,even though some research studies and field pilot demonstrations have been devoted to the field of oCC,there is a lack of systematic knowledge about occupant data,which is the principal component of oCC for HVAC researchers and *** fill this gap,this review paper discusses oCC with a particular emphasis on occupant information and investigates how this information can assist HVAC operation in providing an acceptable built environment in required spaces during the required *** provide a fine-grained,comprehensive picture of occupant information,discuss its features,the modalities of information feed-in into the HVAC control,and the application of commonly utilized occupant information for oCC.

关键词： occupant information occupant-centric control smart building HVAC energy efficiency