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Nano Research 2024年第1期17卷 297-306页

作者： Jing Xie Zhenjiang Lu Yue Feng Jianguo Huang Jindou Hu Aize Hao Yali Cao State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830046China

Defect modulation currently plays a decisive role in addressing the poor photoabsorption,sluggish electron hole separation,and high CO_(2)activation barrier in photocatalytic CO_(2)***,hunting for a straightforward strategy to balance the concentration of oxygen vacancy and metal cation defect in one photocatalyst is still a great ***,a bismuth vacancies BiOBr nanosheets(BiOBr-1)on the exposed[001]facets were constructed via an acetic acid molecule modification strategy,which can repair oxygen defect by bismuth vacancy in low-temperature solid-state chemical *** from the formed bismuth defects that can not only broaden light absorption and elevate charge separation efficiency,but also enhance adsorption and activation of CO_(2)molecules,the evolution rates of photocatalytic CO_(2)conversion into CO(71.23μmol·g^(-1)·h^(-1))and CH4(8.90μmol·g^(-1)·h^(-1))attained by BiOBr-1 are superior 7.1 and 11 times to that of plate-like *** photocatalytic mechanisms including adsorption concentration and activation process of CO_(2)are further revealed by the in situ diffuse reflectance infrared flourier transform spectra(DRIFTS).This finding of the existence of distinct defects in ultrathin nanosheets undoubtedly leads to new possibilities for photocatalyst design using two-dimensional materials with high solar-driven photocatalytic activity.

关键词： solid-state synthesis BiOBr metal vacancies photocatalysis carbon dioxide reduction

Multiresponsive,easy-reversible,and dual-visual Pt(Ⅱ)salt nanostructures for advanced anti-counterfeiting application

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Nano Research 2024年第1期17卷 372-381页

作者： Zhen Su§ Depeng Li§ Lixin Zhang Si Tian Yuhong Su Xiaoyun Hu Duan Xiong Qingqing Guan Key Laboratory of Oil and Gas Fine Chemicals Ministry of Education College of Chemical EngineeringXinjiang UniversityUrumqi 830017China

Smart materials that integrate multi-stimuli response,full reversibility,and dual-visual read-out channel are highly desired for anticounterfeiting and information encryption ***,we developed a multiresponsive perchlorate terpyridyl Pt(Ⅱ)nano complex which could undergo fully reversible conversion between three forms stimulated by water or formaldehyde molecule due to the extent of Pt–Pt ***,a dual-visual channel,i.e.,the colorimetric channel changed from yellow to orange or red and the corresponding luminescent channel from orange to orange-red or red,has also been *** weak and equivalent strength of ion-dipole interaction and hydrogen bond that generated between formaldehyde/water and Pt(II)salt result in the easy-control reversibility between the three ***,by introducing different polymer matrices,1Cl·ClO_(4)@PMMA(1Cl·ClO_(4):[Pt(tpy)Cl]·ClO4,tpy:2,2':6',2''-terpyridine),PMMA:poly(methyl methacrylate))and 1Cl·ClO4@PVA(PVA:polyvinyl alcohol)are successfully constructed,which exhibit different reversible behaviors since the PMMA and PVA matrix exert different influences on the strength of *** smart Pt(II)salt nanostructures present great potential for high-security-level anticounterfeiting application.

关键词： Pt(II)complex multiresponse reversibility anticounterfeiting information encryption

Room-temperature ferromagnetism and half-metallicity in monolayer orthorhombic CrS_(2)

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Frontiers of physics 2024年第4期19卷 137-146页

作者：雷博程李奥林周文哲王云鹏熊威陈羽欧阳方平 School of Physics Science and Technology and Xinjiang Key Laboratory of Solid-State Physics and DevicesXinjiang UniversityUrumqi 830046China School of Physics and Hunan Key Laboratory for Super-Microstructure and Ultrafast Processand Hunan Key Laboratory of Nanophotonics and DevicesCentral South UniversityChangsha 410083China School of Physics Science and Technology and Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter PhysicsYili Normal UniversityYining 835000China Powder Metallurgy Research Institute and State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China

Two-dimensional materials with high-temperature ferromagnetism and half-metallicity have the latest applications in spintronic *** on first-principles calculations,we have investigated a novel two-dimensional CrS_(2) phase with an orthorhombic *** results suggest that it is stable in dynamics,thermodynamics,and *** ground state of monolayer orthorhombic CrS_(2) is both ferromagnetic and half-metallic,with a high Curie temperature of 895 K and a large spin-flipping gap on values of 0.804 *** room-temperature ferromagnetism and halfmetallicity can maintain stability against a strong biaxial strain ranging from–5%to 5%.Meanwhile,increasing strain can significantly maintain the out-of-plane magnetic anisotropy.A density of states analysis,together with the orbital-resolved magnetic anisotropy energy,has revealed that the strain-enhanced MAE is highly related to the 3d-orbital splitting of Cr *** results suggest the monolayer orthorhombic CrS_(2) is an ideal candidate for future spintronics.

关键词： orthorhombic CrS_(2) Curie temperature magnetic anisotropy energy biaxial strain first-principles calculations

Sandwiching Sulfur into the Dents Between N,O Co-Doped Graphene Layered Blocks with Strong Physicochemical Confinements for Stable and High-Rate Li-S Batteries

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Nano-Micro Letters 2020年第11期12卷 13-24页

作者： Mengjiao Shi Su Zhang Yuting Jiang Zimu Jiang Longhai Zhang Jin Chang Tong Wei Zhuangjun Fan Key Laboratory of Superlight Materials and Surface Technology Ministry of EducationCollege of Material Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001People’s Republic of China Key Laboratory of Energy Materials Chemistry Ministry of EducationKey Laboratory of Advanced Functional MaterialsAutonomous RegionInstitute of Applied ChemistryXinjiang UniversityUrumqi 830046People’s Republic of China State Key Laboratory of Heavy Oil Processing School of Materials Science and EngineeringChina University of PetroleumQingdao 266580People’s Republic of China

The development of lithium-sulfur batteries(LSBs)is restricted by their poor cycle stability and rate performance due to the low conductivity of sulfur and severe shuttle ***,an N,O co-doped graphene layered block(NOGB)with many dents on the graphene sheets is designed as effective sulfur host for high-performance LSB *** sulfur platelets are physically confined into the dents and closely contacted with the graphene scaffold,ensuring structural stability and high *** highly doped N and O atoms can prevent the shuttle effect of sulfur species by strong chemical ***,the micropores on the graphene sheets enable fast Li^+transport through the *** a result,the obtained NOGB/S composite with 76 wt%sulfur content shows a high capacity of 1413 mAh g^-1 at 0.1 C,good rate performance of 433 mAh g^-1 at 10 C,and remarkable stability with 526 mAh g^-1 at after 1000 cycles at 1 C(average decay rate:0.038%per cycle).Our design provides a comprehensive route for simultaneously improving the conductivity,ion transport kinetics,and preventing the shuttle effect in LSBs.

关键词： Graphene Physicochemical confinement Cycle stability Shuttle effect Li-S batteries

Does Success Breed Success?A Study on the Correlation between Impact Factor and Quantity in Chinese Academic Journals

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Journal of Data and Information Science 2021年第4期6卷 90-110页

作者： Kun Chen Xiantong Ren Guoliang Yang Ailifeire Abudouguli School of Politics and Public Administration Xinjiang UniversityUrumqi830046China Institute of Science and Development Chinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China

Purpose:This paper studies the relationship between the impact factor(IF)and the number of journal papers in Chinese publishing ***/methodology/approach:The method proposed by Huang(2016)is used whereas to analysis the data of Chinese journals in this ***:Based on the analysis,we find the following.(1)The average impact factor(AIF)of journals in all disciplines maintained a growth trend from 2007 to *** before or after removing outlier journals that may garner publication fees,the IF and its growth rate for most social sciences disciplines are larger than those of most natural sciences disciplines,and the number of journal papers on social sciences disciplines decreased while that of natural sciences disciplines increased from 2007 to 2017.(2)The removal of outlier journals has a greater impact on the relationship between the IF and the number of journal papers in some disciplines such as Geosciences because there may be journals that publish many papers to garner publication fees.(3)The success-breeds-success(SBS)principle is applicable in Chinese journals on natural sciences disciplines but not in Chinese journals on social sciences disciplines,and the relationship is the reverse of the SBS principle in Economics and Education&Educational Research.(4)Based on interviews and surveys,the difference in the relationship between the IF and the number of journal papers for Chinese natural sciences disciplines and Chinese social sciences disciplines may be due to the influence of the international publishing *** natural sciences journals are losing their academic power while Chinese social sciences journals that are less influenced by the international publishing system are in fierce *** limitation:More implications could be found if long-term tracking and comparing the international publishing system with Chinese publishing system are *** implications:It is suggested that researchers from different co

关键词： Impact factor(IF) Chinese academic journals Correlation analysis the Number of journal papers

A new method of searching for concealed Au deposits by using the spectrum of arid desert plant species

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Journal of Arid Land 2021年第11期13卷 1183-1198页

作者： CUI Shichao ZHOU Kefa ZHANG Guanbin DING Rufu WANG Jinlin CHENG Yinyi JIANG Guo State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China xinjiang Key Laboratory of Mineral Resources and Digital Geology Urumqi 830011China xinjiang Research Centre for Mineral Resources Chinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China xinjiang Academy of Science and Technology for Development Urumqi 830011China China Non-Ferrous Metals Resources Geological Survey Beijing 100012China

With the increase of exploration depth,it is more and more difficult to find Au *** to the limitation of time and cost,traditional geological exploration methods are becoming increasingly difficult to be effectively ***,new methods and ideas are urgently *** study assessed the feasibility and effectiveness of using hyperspectral technology to prospect for hidden Au *** this purpose,48 plant(Seriphidium terrae-albae)and soil(aeolian gravel desert soil)samples were first collected along a sampling line that traverses an Au mineralization alteration zone(Aketasi mining region in an arid region of China)and were used to obtain soil Au contents by a chemical analysis method and the reflectance spectra of plants obtained with an Analytical Spectral Device(ASD)FieldSpec3 ***,the corresponding relationship between the soil Au content anomaly and concealed Au deposits was ***,the characteristic bands were selected from plant spectra using four different methods,namely,genetic algorithm(GA),stepwise regression analysis(STE),competitive adaptive reweighted sampling(CARS),and correlation coefficient method(CC),and were then input into the partial least squares(PLS)method to construct a model for estimating the soil Au ***,the quantitative relationship between the soil Au content and the 15 different plant transformation spectra was established using the PLS *** results were compared with those of a model based on the full *** results obtained in this study indicate that the location of concealed Au deposits can be predicted based on soil geochemical anomaly information,and it is feasible and effective to use the full plant spectrum and PLS method to estimate the Au content in the *** cross-validated coefficient of determination(R2)and the ratio of the performance to deviation(RPD)between the predicted value and the measured value reached the maximum of 0.8218 and 2.37,respect

关键词： concealed Au deposits reflectance spectroscopy soil Au content characteristic band soil geochemical prospecting competitive adaptive reweighted sampling Seriphidium terrae-albae

Performance Analysis and Optimization of a Modified Stewart Platform for the Qitai Radio Telescope

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天文和天体物理学研究:英文版 2023年第9期23卷 241-250页

作者： Guljaina Kazezkhan Qian Xu Na Wang Fei Xue Hui Wang xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Key Laboratory of Radio Astronomy Chinese Academy of SciencesUrumqi 830011China xinjiang Key Laboratory of Radio Astrophysics Urumqi 830011China

This paper presents a modified Stewart platform that enables precise adjustment of the sub-reflector for the Qitai Radio Telescope(QTT).QTT demands a parallel platform capable of carrying a heavy load(≥4000 kg),and moving in elevation from 5°to 88°together with the primary reflector while precisely adjusting the sub-reflector’s position in five degrees of *** meet these requirements,a modified Stewart platform with two separated actuators is proposed,and the comprehensive performance is analyzed and optimized for practical *** performance of the modified platform is compared to that of the traditional Stewart platform,and the results demonstrate that the modified platform has superior load-bearing capacity and stiffness over the entire elevation angle with more uniform actuator load and stiffness *** results indicate that the modified Stewart platform is well-suited for practical application in QTT.

关键词： telescopes-methods analytical-methods numerical

聚集诱导发光邻碳硼烷-咔唑区位异构体的合成及光物理性质研究

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新疆大学学报（自然科学版）（中英文） 2022年第4期39卷 446-454页

作者：靳小平吴雪岩吕燕郭继玺新疆大学化学学院应用化学研究所省部共建碳基能源资源化学与利用国家重点实验室先进功能材料自治区重点实验室新疆乌鲁木齐830017

通过简单的合成策略制备出具有聚集诱导发光性质的邻碳硼烷-N-苯基咔唑区位异构体化合物(C3DC和C9DC),并对其结构进行了表征.两种化合物均具有聚集诱导发光性质,固态下化合物C3DC和C9DC的发光量子产率分别高达99%和93%.DFT理论计算结果... 详细信息

通过简单的合成策略制备出具有聚集诱导发光性质的邻碳硼烷-N-苯基咔唑区位异构体化合物(C3DC和C9DC),并对其结构进行了表征.两种化合物均具有聚集诱导发光性质,固态下化合物C3DC和C9DC的发光量子产率分别高达99%和93%.DFT理论计算结果表明,化合物的发光主要源于分子内邻碳硼烷与咔唑之间产生的分子内电荷转移.

关键词：邻碳硼烷 N-苯基咔唑区位异构体聚集诱导发光分子内电荷转移

配位聚合物光学材料的可控合成及自发相变导致强二次谐波响应

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Science China Materials 2020年第7期63卷 1272-1278页

作者：张俊买尔哈巴·阿不都热合曼马晓帆孔维丽轩小朋潘世烈 School of Materials and Chemical Engineering Anhui Jianzhu UniversityHefei 230601China College of Chemistry and Chemical Engineering Key Laboratory of Coal Clean Conversion&Chemical Engineering ProcessCollege of Chemistry and Chemical EngineeringXinjiang UniversityUrumqi 830046China School of Chemistry and Chemical Engineering Key Laboratory of Green Chemical Media and ReactionsMinistry of EducationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsHenan Normal UniversityXinxiang 453007China CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics&ChemistryCASXinjiang Key Laboratory of Electronic Information Materials and DevicesUrumqi 830011China

本文以具有聚集诱导发光(AIEgen)的三联吡啶衍生物为配体,构建了一种新型配位聚合物(CP)光学材料.该材料可以从中心对称结构(1-α相)自发相变成非中心对称结构(1-β相),两种物相均能可控合成,且通过单晶X射线衍射清晰表征相变前后结构.... 详细信息

本文以具有聚集诱导发光(AIEgen)的三联吡啶衍生物为配体,构建了一种新型配位聚合物(CP)光学材料.该材料可以从中心对称结构(1-α相)自发相变成非中心对称结构(1-β相),两种物相均能可控合成,且通过单晶X射线衍射清晰表征相变前后结构.有趣的是,中心对称1-α相转变为非中心对称1-β相,从而产生强相位匹配二次谐波(SHG)响应,约为KH2PO4(KDP)的4.5倍.为了更好地理解结构与非线性光学特性之间的关系,对偶极矩进行了计算和讨论.值得注意的是,1-β具有高热稳定性的非中心对称结构,在1-α结构相变后保留并改善了AIEgen配体的初始发光性质,同时产生了新的优异的SHG性质,这为设计和制备优良的光学材料提供了一条很好的途径.

关键词：配位聚合物非线性光学特性单晶X射线衍射聚集诱导发光二次谐波相位匹配可控合成偶极矩