检索结果-内蒙古大学图书馆

Unassisted photoelectrochemical CO_(2)reduction by employingⅢ-Ⅴphotoelectrode with 15%solar-to-fuel efficiency

Carbon Energy 2025年第3期7卷 1-10页

作者： Karthik Peramaiah Purushothaman Varadhan Vinoth Ramalingam Bilawal Khan Pradip Kumar Das Hao Huang Hui-Chun Fu Xiulin Yang Vincent Tung Kuo-Wei Huang Jr-Hau He Chemistry Program Center for Renewable Energy and Storage Technologies(CREST)and Division of Physical Science and EngineeringKing Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia Institute of Sustainability for Chemicals Energyand Environment(ISCE2)Agency for ScienceTechnologyand Research(A*STAR)Singapore School of Computing Engineering and TechnologyRobert Gordon UniversityAberdeenUK Department of Materials Science and Engineering City University of Hong KongKowloonSARHong KongChina Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilinChina Department of Chemical System and Engineering University of TokyoTokyoJapan

Solar-driven carbon dioxide reduction reaction(CO_(2)RR)provides an oppor tunity to produce value-added chemical feedstocks and ***,achieving efficient and stable photoelectrochemical(PEC)CO_(2)RR into selec tive products is challenging owing to the difficulties associated with the optical and the electrical configuration of PEC devices and electrocatalyst ***,we construct an efficient,concentrated sunlight-driven CO_(2)RR setup consisting of InGaP/GaAs/Ge triple-junction cell as a photoanode and oxide-derived Au(Ox-Au)as a cathode to perform the unassisted PEC CO_(2)*** one-sun illumination,a maximum operating current density of 11.5 mA cm^(-2) with an impressive Faradaic efficiency(FE)of~98%is achieved for carbon monoxide(CO)production,leading to a solar-to-fuel conversion efficiency of~15%.Under concentrated intensity of 10 sun,the photoanode records a maximum current density of~124 mAcm^(-2) and maintains~60%of FE for CO *** results demonstrate crucial advancements in usingⅢ-Ⅴbased photoanodes for concentrated PEC CO_(2)RR.

关键词： 3J photoanode CO_(2)reduction high STF unassisted PEC

来源：评论

学校读者我要写书评

暂无评论

Adsorption and visual detection of nitro explosives by pillar[n]arenes-based host–guest interactions

引用

Chinese Chemical Letters 2025年第4期36卷 211-215页

作者： Xueru Zhao Aopu Wang Shimin Wang Zhijie Song Li Ma Li Shao Department of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing 312000China Department of Chemistry University of MissouriColumbiaMissouri 65211United States

Aromatic nitro compounds present substantial health and environmental concerns due to their toxic nature and potential explosive ***,the development of host–guest molecular recognition systems for these compounds serves a dual-purpose:enabling the fabrication of high-performance sensors for detection and guiding the design of efficient adsorbents for environmental *** study investigated the host–guest recognition behavior of perethylated pillar[n]arenes toward two aromatic nitro molecules,1-chloro-2,4-dinitrobenzene and picric *** techniques including^(1)H NMR,2D NOESY NMR,and UV-vis spectroscopy were employed to explore the binding behavior between pillararenes and aromatic nitro guests in ***,valuable single crystal structures were obtained to elucidate the distinct solid-state assembly behaviors of these guests with different *** assembled solid-state supramolecular structures observed encompassed a 1:1 host–guest inclusion complex,an external binding complex,and an exo-wall tessellation ***,based on the findings from these systems,a pillararene-based test paper was developed for efficient picric acid detection,and the removal of picric acid from solution was also achieved using pillararenes *** research provides novel insights into the development of diverse host–guest systems toward hazardous compounds,offering potential applications in environmental protection and explosive detection domains.

关键词： Pillar[n]arenes Host–guest interactions Aromatic nitro compounds Adsorptive separation Explosive detection

来源：评论

学校读者我要写书评

暂无评论

High-performance terahertz modulators induced by substrate field in Te-based all-2D heterojunctions

引用

Light(science & Applications) 2024年第3期13卷 577-586页

作者： Pujing Zhang Qihang Liang Qingli Zhou Jinyu Chen Menglei Li Yuwang Deng Wanlin Liang Liangliang Zhang Qinghua Zhang Lin Gu Chen Ge Kui-juan Jin Cunlin Zhang Guozhen Yang Department of Physics Key Laboratory of Terahertz OptoelectronicsMinistry of Educationand Beijing Advanced Innovation Center for Imaging Theory and TechnologyCapital Normal UniversityBeijing 100048China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Materials Science and Engineering Beijing National Center for Electron Microscopy and Laboratory of Advanced MaterialsTsinghua UniversityBeijing 100084China

High-performance active terahertz modulators as the indispensable core components are of great importance for the next generation communication ***,they currently suffer from the tradeoff between modulation depth and ***,we introduce two-dimensional(2D)tellurium(Te)nanofilms with the unique structure as a new class of optically controlled terahertz modulators and demonstrate their integrated heterojunctions can successfully improve the device performances to the optimal and applicable levels among the existing all-2D broadband *** photoresponse measurements confirm the significant impact of the stacking *** first clarify the direction of the substrate-induced electric field through first-principles calculations and uncover the unusual interaction mechanism in the photoexcited carrier dynamics associated with the charge transfer and interlayer exciton *** advances the fundamental and applicative research of Te nanomaterials in high-performance terahertz optoelectronics.

关键词： performance field terahertz

来源：评论

学校读者我要写书评

暂无评论

Argon-assisted electrical explosion of graphite powder in a constraint tube: Experimental and MD insights into the exfoliation mechanism

引用

Ceramics International 2025年第16期51卷 21689-21701页

作者： Zhu, Wenli Zhu, Liang Department of Civil and Environmental Engineering University of California Los Angeles United States School of Materials Science and Engineering State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of Technology Lanzhou730050 China

We report a top-down electrical explosion approach in a constraint tube under an argon atmosphere for high-yield production of few-to multi-layer graphene. By coupling high-voltage discharges with inert gas support, this technique imparts intense shock loading that surmounts the interlayer van der Waals forces in graphite. Systematic experimental analyses (FE-SEM, TEM/HRTEM, AFM, Raman) confirm efficient exfoliation into largely few-layer graphene with minimal defects and residual graphite. To elucidate the atomistic mechanisms, large-scale molecular dynamics (MD) simulations replicate key stages of the process—annealing, shock-induced delamination, and cooling—revealing how shock loading and argon interactions drive interlayer expansion, bending, and partial delamination. Notably, argon significantly mitigates re-agglomeration during the cooling stage, preserving dispersed graphene flakes. This synergy between experiment and simulation establishes electrical explosion in an argon-rich environment as a scalable method potentially suitable for commercial graphene production. Moreover, it highlights the crucial role of controlled shock conditions and argon gas interactions in enabling robust, few-layer exfoliation, paving the way for further optimization and industrial implementation. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Van der Waals forces

来源：评论

学校读者我要写书评

暂无评论

Ytterbium-Catalyzed Tandem Diels-Alder/Claisen Rearrangement/Decarboxylation of Hetero-Allenes for the Synthesis of Diarylmethanes

引用

Chinese Journal of Chemistry 2025年第2期43卷 199-204页

作者： Bin Chen Shan Zhong Huilin Zhan Zhangyu Han Jianwei Sun Hai Huang Jiangsu Key Laboratory of Advanced Catalytic Materials&Technology School of Petrochemical EngineeringChangzhou UniversityChangzhouJiangsu213164 China Department of Chemistry The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongSAR999077 China

A tandem Diels–Alder reaction/Claisen rearrangement/decarboxylation strategy of N-allenamides (or aryloxyallenes) with 3-alkoxycarbonyl-2-pyrones has been developed for the efficient synthesis of diarylmethanes with moderate to good yields. The reaction exhibits good functional group tolerance and can be applied to late-stage modifications of known drug molecules. Mechanistic studies indicate that the ester group at the 3-position of 2-pyrones is essential, and the initial Diels–Alder reaction between the 2-pyrones and the proximal C=C bond of the N-allenamides (or aryloxyallenes) is crucial for the success of the reaction.

关键词： Hetero-allenes 2-Pyrones Diels-Alder reaction Claisen rearrangement Decarboxylation Tandem reaction

来源：评论

学校读者我要写书评

暂无评论

Vortex tuning magnetization configurations in porous Fe_(3)O_(4) nanotube with wide microwave absorption frequency

引用

Nano Research 2022年第7期15卷 6743-6750页

作者： Ruixuan Zhang Lei Wang Chunyang Xu Chongyun Liang Xianhu Liu Xuefeng Zhang Renchao Che Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsDepartment of Materials ScienceFudan UniversityShanghai 200438China Joint-Research Center for Computational Materials Zhejiang LaboratoryHangzhou 311100China Department of Chemistry Fudan UniversityShanghai 200433China School of Materials Science and Engineering Shanghai Institute of TechnologyShanghai 201418China Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002China Institute of Advanced Magnetic Materials College of Materials and Environmental EngineeringHangzhou Dianzi UniversityHangzhou 310012China

The design and optimization of one-dimension(1D)magnetic material are of great importance for the energy conversion,storage and spin electron devices,which remain a huge ***,1D porous Fe_(3)O_(4) nanotubes(NTs)have been fabricated via a combined process of electrospinning and *** the electrospinning precursors,by regulating the content ratio between two types of polyvinyl pyrrolidone with different molecular weight,porous Fe_(3)O_(4) NTs with vortex-domain configuration have been *** on the unique 1D nanotube structure encapsulated with multi-domains,the composite Fe_(3)O_(4) NTs exhibit high complex permeability(μʹ,μʺ)values,and hold both strong magnetic storage and dissipation *** Fe_(3)O_(4) NTs exhibit excellent microwave absorption(MA)performance with the maximum reflection loss value of−57.1 dB and the efficient absorption bandwidth of 12.0 *** generated magnetic vortices make the crucial contribution to the spin-wave resonance which improves the MA dissipation under *** magnetic flux line distribution and magnetic domain moment were confirmed by the electron holography and micro-magnetic simulation,respectively,providing the deep insight to the microwave absorption mechanism.

关键词： microwave absorption vortex domain one-dimensional structure porous structure

来源：评论

学校读者我要写书评

暂无评论

Formation of Face‑Centered Cubic Phase in Ti35 Alloy Under In Situ Heating Transmission Electron Microscopy

引用

Acta Metallurgica Sinica(English Letters) 2023年第3期36卷 486-494页

作者： Jianan Hu Mengmeng Yang Wenlong Xiao Hao Wang Dehai Ping Chengze Liu Shewei Xin Songquan Wu Kai Zhang Yi Yang Lai‑Chang Zhang Aijun Huang School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education School of Materials Science and EngineeringBeihang UniversityBeijing 100191China School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Xi’an Rare Metal Materials Institute Co.Ltd Xi’an 710016China Northwest Institute for Non-Ferrous Metal Research Xi’an 710016China School of Engineering Edith Cowan University270 Joondalup DriveJoondalupPerthWA 6027Australia Department of Materials Science and Engineering Monash UniversityClaytonVIC 3800Australia

A thermally induced hexagonal close-packed(HCP)to face-centered cubic(FCC)phase transition was investigated in anα-type Ti35 alloy with twinned structure by in situ heating transmission electron microscopy(TEM)and ab initio *** observations indicated that the HCP to FCC phase transition occurred both within matrix/twin and at the twin boundaries in the thinner region of the TEM film,and the FCC-Ti precipitated as plates within the matrix/twin,while as equiaxed cells at twin *** crystallographic orientation relationship between HCP-Ti and FCC-Ti can be described as:{111}FCC//{0002}HCP and<110>FCC//<1210>*** HCP to FCC phase transition was accomplished by forming an intermediate state with a BB stacking sequence through the slip of partial *** formation of such FCC-Ti may be related to the thermal stress and *** initio calculations showed that the formation of FCC-Ti may also be related to the contamination of interstitial atoms such as oxygen.

关键词： In situ heating TEM FCC titanium Phase transition Ab initio calculation

来源：评论

学校读者我要写书评

暂无评论

engineering polarization surface of hierarchical ZnO microspheres via spray-annealing strategy for wide-frequency electromagnetic wave absorption

引用

Journal of materials science & technology 2022年第36期131卷 231-239页

作者： Lei Wang Mengqiu Huang Xuefeng Yu Wenbin You Biao Zhao Chongyun Liang Xianhu Liu Xuefeng Zhang Renchao Che Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsDepartment of Materials ScienceFudan UniversityShanghai 200438China Department of Chemistry Fudan UniversityShanghai 200433China Joint-Research Center for Computational Materials Zhejiang LaboratoryHangzhou 311100China School of Materials Science and Engineering Shanghai Institute of TechnologyShanghai 201418China Key Laboratory of Materials Processing and Mold Zhengzhou UniversityMinistry of EducationZhengzhou 450002China Institute of Advanced Magnetic Materials College of Materials and EnvironmentalEngineeringHangzhou Dianzi UniversityHangzhou 310012China

Regulating orientation growth plays a dominant role in enhancing dielectric properties for the electromagnetic(EM)functional materials,which faces a huge challenge in the synthesis *** sprayannealing strategy,hierarchical ZnO microspheres assembled by ZnO nanorods and nanoparticles were successfully *** confined microsphere space and controlling crystal growth,oriented ZnO nanorods possess rich defects,Zn-polar,O-polar faces,and high ***,temperaturedependency of exposed polarization surfaces is discovered in the semiconductor ZnO nanoparticles with evolved aspect *** pure dielectric EM wave absorption material,the hierarchical ZnO microsphere exhibits adjustable complex permittivity and polarization *** the thickness is 2.4 mm,the hierarchical ZnO-1 absorber shows the widest efficient absorption(RL≤–10 d B)region from 9.9 to18.0 GHz(8.1 GHz,^50.6%testing frequency).The minimum reflection loss(RL)of ZnO-1 can reach–31.5 d B at only 2.0 *** of the outstanding dielectric loss ability and wide absorption frequency,large-scale hierarchical ZnO microspheres can be a potential EM absorption candidate.

关键词： ZnO microspheres Spray drying Electromagnetic wave absorption Orientated polarization Dielectric loss

来源：评论

学校读者我要写书评

暂无评论

Unveiling the intrinsic properties of single NiZnFeO_x entity for promoting electrocatalytic oxygen evolution

引用

Chinese Chemical Letters 2024年第4期35卷 181-186页

作者： Zhihao Gu Jiabo Le Hehe Wei Zehui Sun Mahmoud Elsayed Hafez Wei Ma Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China Department of Chemistry Faculty of ScienceBeni-Suef UniversityBeni-Suef 62511Egypt

Although considerable research efforts have been devoted to the design and development of non-noble electrocatalysts for oxygen evolution reaction(OER), substantial enhancement of OER performance with commercial-scale water electrolysis remains a big challenge. This could result from the difficulties in detecting the intrinsic properties and overlooking the assembly process for electrochemical OER process. Here, we employ a microjet collision method to investigate the intrinsic OER activities of individual NiZnFeO_x entities with and without a moderate magnetic field. Our results demonstrate that single NiZnFeO_x nanoparticles(NPs) show the excellent OER performance with a lowest onset potential(~1.35 V vs. RHE) and a greatest magnetic enhancement(~118%) among bulk materials, single agglomerations and NPs. Furthermore, we explore the utility of theoretical investigation by density functional theory(DFT)calculations for studying OER process on NiZnFeO_x surfaces without and with spin alignment, indicating monodispersed NiZnFeO_xNPs with totally spin alignment facilitates the OER process under the external magnetic field. It is found that the well-dispersion of NiZnFeO_x NPs would increase the electrical conductivity and the surface spin state, resulting in promoting their OER activities. This work provides a test for uncovering the essential roles of NPs assembly to a significant promotion of their magnet-assisted OER.

关键词： Single entity OER Magnetic enhancement Electrocatalysis Well-dispersion

来源：评论

学校读者我要写书评

暂无评论

A review of solid-state lithium metal batteries through in-situ solidification

引用

science China Chemistry 2024年第1期67卷 67-86页

作者： Pan Xu Zong-Yao Shuang Chen-Zi Zhao Xue Li Li-Zhen Fan Aibing Chen Haoting Chen Elena Kuzmina Elena Karaseva Vladimir Kolosnitsyn Xiaoyuan Zeng Peng Dong Yingjie Zhang Mingpei Wang Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China Institute of Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018China Ordos Carbon Neutral Research and Application Co. Ltd.Ordos City 017010China Ufa Institute of Chemistry UFRC RAS Ufa 450054Russia Institute for Carbon Neutrality Tsinghua UniversityBeijing 100084China Shanxi Research Institute for Clean Energy Tsinghua UniversityTaiyuan 030032China

High-energy-density lithium metal batteries are the next-generation battery systems of choice,and replacing the flammable liquid electrolyte with a polymer solid-state electrolyte is a prominent conduct towards realizing the goal of high-safety and high-specific-energy ***,the inherent intractable problems of poor solid-solid contacts between the electrode/electrolyte and the growth of Li dendrites hinder their practical *** in-situ solidification has demonstrated a variety of advantages in the application of polymer electrolytes and artificial interphase,including the design of integrated polymer electrolytes and asymmetric polymer electrolytes to enhance the compatibility of solid–solid contact and compatibility between various electrolytes,and the construction of artificial interphase between the Li anode and cathode to suppress the formation of Li dendrites and to enhance the high-voltage stability of polymer *** review firstly elaborates the history of in-situ solidification for solid-state batteries,and then focuses on the synthetic methods of solidified ***,the recent progress of in-situ solidification technology from both the design of polymer electrolytes and the construction of artificial interphase is summarized,and the importance of in-situ solidification technology in enhancing safety is ***,prospects,emerging challenges,and practical applications of in-situ solidification are envisioned.

关键词： in-situ solidification polymer electrolyte artificial solid electrolyte interphase rechargeable lithium metal batteries dendrite-free lithium metal anode

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：