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Recent achievements in selenium-based transition metal electrocatalysts for pH-universal water splitting

Nano Research 2024年第7期17卷 5763-5785页

作者： Yuwei Jiang Sanshuang Gao Xijun Liu Yin Wang Shuxing Zhou Qian Liu Abdukader Abdukayum Guangzhi Hu Xinjiang Key Laboratory of Novel Functional Materials Chemistry College of Chemistry and Environmental SciencesKashi UniversityKashi 844000China Institute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming 650504China MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsGuangxi UniversityNanning 530004China Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China Institute for Advanced Study Chengdu UniversityChengdu 610106China

The electrolysis of water to produce hydrogen is an important technique to replace traditional fossil fuel-based hydrogen *** method efficiently converts electrical energy into chemical energy,it is ostensibly a promising candidate for addressing the energy *** effort has been devoted to developing efficient electrocatalysts for water *** exploration of suitable catalytic materials for the hydrogen evolution reaction(HER),oxygen evolution reaction(OER),and other bifunctional electrocatalytic reactions is *** metal selenides(TMSes)have emerged as potential HER and OER electrocatalysts because of their unique electronic structures,which are beneficial for charge transfer,tuneable bandgaps,distinctive morphologies,and *** review discusses the mechanisms and performance comparisons of TMSes in overall water splitting under various pH *** an industrial and commercial perspective,the catalytic performance of TMSes for the HER and OER is not *** for preparing electrocatalytic materials and optimizing materials for overall water decomposition and modulation mechanisms have been introduced to improve electrocatalytic performance,such as element doping,carbon composites,bimetallic systems,morphology control,and heterogeneous interface ***,the challenges and prospects of TMSes were discussed.

关键词： hydrogen energy source electrocatalysis water splitting selenium-based materials transition metal

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Enhanced grain orientation degree and electrical properties in PSN-PMN-PT textured ceramics under the effect of sintering aids

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Journal of materials Science & Technology 2024年第32期199卷 114-124页

作者： Ruigang Qiu Feifei Guo Jie Wu Wenqiang Bai Yifei Chen Hongqiao Zhou Wei Long Xiaojuan Li Pinyang Fang Zhonghua Dai Jie Dong Zengzhe Xi Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices School of Materials and Chemical EngineeringXi’an Technological UniversityXi’an 710021China Electronic Materials Research Lab Key Lab of Education Ministry and State Key Laboratory for Mechanical Behavior of MaterialsSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Laboratory of Thin Film Techniques and Optical Test Xi’an Technological UniversityXi’an 710032China The National Engineering Research Center of Light Alloy Net Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

In this work,texturing is proposed to improve the piezoelectric response of PSN-PMN-PT *** PSN-PMN-PT textured ceramic with a Lotgering factor F001 higher than 99%was synthesized by the liquid-phase-assisted template grain growth(TGG)*** addition of CuO/B2 O3 sintering aids improves the BT templates induced grain orientation growth behavior *** comparison with its random counterpart,the Cu/B-T textured ceramic exhibits a high Lotgering factor F001 of 99%and significantly enhanced dielectric and piezoelectric responses:ε_(r)~3100,tanδ~0.8%,d_(33)~1030 pC N^(-1),d_(33)·g_(33)~34.2×10^(-12) m^(2) N^(-1),d_(33)∗~1490 pm V^(-1)@5 kV cm^(-1),Smax~0.26%@20 kV cm^(-1) and H_(s)~8.5%.In the meantime,good temperature stability is observed in the Cu/B-T textured ceramic with a variation of d_(33)∗@20 kV cm^(-1) and annealed d_(33) lower than 9.68%and 18.1%over a wide temperature range of 25-140°*** work shows that PSN-PMN-PT textured ceramic(Cu/B-T)has great potential for electrome-chanical device applications such as precision actuators,ultrasound transducers,and energy harvesters.

关键词： PSN-PMN-PT Textured ceramics Grain orientation Sintering aids Piezoelectric Temperature stability

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Multifunctional interstitial-carbon-doped FeCoNiCu high entropy alloys with excellent electromagnetic-wave absorption performance

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Journal of materials Science & Technology 2022年第18期113卷 61-70页

作者： Jianping Yang Linwen Jiang Zhonghao Liu Zhuo Tang Anhua Wu State Key Laboratory Base of Novel Functional Materials and Preparation Science Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang ProvinceNingbo UniversityNingbo 315211China Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology CAS Key Laboratory of Magnetic Materials and DevicesNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 201800China

Electromagnetic-wave absorbing(EMA)materials that have efficient absorption performances,great me-chanical properties and chemical stability are rare and yet essential for communication security and ***,flaky interstitial-carbon-doped FeCoNiCu high entropy alloys(HEAs)as novel EMA ma-terials were successfully prepared by high-energy ball-milling ***-carbon doping as a modulating approach impacted the phase forming,morphology and electromagnetic properties of Fe-CoNiCu *** matching was significantly optimized via tuning interstitial carbon *** carbon-doped FeCoNiCu HEAs with appropriate carbon contents delivered superior EMA performance compared with other HEAs EMA *** reflection loss as low as-61.1 dB in the Ku band,broad effective absorption bandwidth of 5.1 GHz was achieved for FeCoNiCuC_(0.04).Moreover,the carbon-doped FeCoNiCu HEAs exhibited excellent mechanical hardness and chemical *** work not only suggests that interstitial-carbon doping is an available approach to tuning electromagnetic properties of HEAs,but also presents carbon-doped FeCoNiCu HEAs as promising EMA materials for civilian and mili-tary due to the efficient absorption,broad bandwidth,great durability and stability.

关键词： Microwave absorption High entropy alloys FeCoNiCu Carbon-doping Impedance match

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Localization effect in single crystal of RuAs_(2)

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Chinese Physics B 2024年第4期33卷 195-200页

作者：易哲铠刘琪光双魁徐升岳小宇梁慧李娜周颖吴丹丹孙燕李秋菊程鹏夏天龙孙学峰王义炎 Anhui Key Laboratory of Magnetic Functional Materials and Devices Institute of Physical Science and Information TechnologyAnhui UniversityHefei 230601China Department of Physics and Key Laboratory of Strongly-Coupled Quantum Matter Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials&Micro-nano Devices Renmin University of ChinaBeijing 100872China School of Optical and Electronic Information Suzhou City UniversitySuzhou 215104China School of Physics and Optoelectronic Engineering Anhui UniversityHefei 230601China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

We report the magnetotransport and thermal properties of RuAs_(2) single ***_(2) exhibits semiconductor behavior and localization *** crossover from normal state to diffusive transport in the weak localization(WL)state and then to variable range hopping(VRH)transport in the strong localization state has been *** transitions can be reflected in the measurement of resistivity and Seebeck *** magnetoresistance(NMR)emerges with the appearance of localization effect and is gradually suppressed in high magnetic *** temperature dependent phase coherence length extracted from the fittings of NMR also indicates the transition from WL to *** measurement of Hall effect reveals an anomaly of temperature dependent carrier concentration caused by localization *** findings show that RuAs_(2) is a suitable platform to study the localized state.

关键词： weak localization variable range hopping RuAs_(2) single crystal

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Experimentally Ruling Out Joint Reality Based on Locality with Device-Independent Steering

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Chinese Physics Letters 2024年第1期41卷 1-5页

作者： Shuaining Zhang Xiang Zhang Zhiyue Zheng Wei Zhang Beijing Academy of Quantum Information Sciences Beijing 100193China Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices Renmin University of ChinaBeijing 100872China Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education) Renmin University of ChinaBeijing 100872China

As an essential concept to understand the world,whether the real values(or physical realities)of observables are suitable to physical systems beyond the classic has been debated for many *** standard nogo results based on Bell inequalities have ruled out the joint reality of incompatible quantum observables,the possibility of giving simple yet strong arguments to rule out joint reality in any physical system(not necessarily quantum)with weaker assumptions and less observables has been explored and proposed ***,we perform a device-independent experiment on a two-qubit superconducting system to show that the joint reality of two observables is incompatible with locality under the weaker assumption of the reality of observables in a single space-time region(or single qubit).Our results clearly show the violation of certain inequalities derived from both linear and nonlinear *** addition,we study the robustness of the linear and nonlinear criterion against the effect of systematic *** demonstration opens up the possibility of delineating classical and non-classical boundaries with simpler nontrivial quantum system.

关键词： observable quantum system

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Novel strategy of multidimensional information encryption via multi-color carbon dots aggregation-induced emission

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Nano Research 2024年第6期17卷 5680-5687页

作者： Liu Ding Xilang Jin Yuchong Gao Shouwang Kang Haiyan Bai Xuehao Ma Taotao Ai Hongwei Zhou Weixing Chen Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices Engineering Research Center of Light Stabilizers for Polymer Materials Universities of Shaanxi Province School of Materials and Chemical EngineeringXi’an Technological UniversityXi’an 710021China School of Material Science and Engineering Shaanxi University of TechnologyHanzhong 723000China Department of Materials Science and Engineering University of PennsylvaniaPhiladelphia 19104USA

Carbon dots(CDs)with aggregation-induced emission(AIE)have sparked significant interest in multidimensional anti-counterfeiting due to their exceptional fluorescence ***,the preparation of AIE CDs with multicolor solid-state fluorescence remains a formidable challenge due to its complicated *** the present work,a novel class of multicolor AIE CDs(M-CDs)were fabricated using selected precursor(salicylic acid,thiosalicylic acid,and 2,2'-dithiodibenzoic acid),with an eco-friendly,low-cost one-pot solvothermal *** the dilute organic solution,M-CDs manifested blue emission,but upon aggregation in the presence of water,the red,yellow,green,and blue emissions were displayed due to the AIE *** analysis,coupled with theoretical calculations,revealed that the increase in the size of sp2 domains would lower the Eg and cause a red-shift emission ***,the continuous emission of M-CDs from blue to red can be utilized as ink for multimode printing,enabling the creation of a variety of school badges and quick response *** findings hold promising implications for multi-information encryption applications.

关键词： aggregation-induced emission(AIE) luminescence mechanism multi-color emission information encryption.

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A phenanthroline derivative modified by arylphosphine oxide moiety as nCGL in tandem OLEDs

A phenanthroline derivative modified by arylphosphine oxide ...

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International Conference on Display Technology, 2024

作者： Wu, Shao-Guang Song, Min Zhao, Wan-Qian Hu, Zi-Fan Zhou, Dong-Ying Zhu, Xu-Hui Liao, Liang-Sheng Guangzhou510640 China Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Jiangsu Suzhou215123 China

5-(6-(Diphenylphosphinyl)-2-naphthyl)-1,10-phenanthroline (pPhen-NaDPO) is reported as a promising n-type charge-generation layer in efficient and stable tandem OLEDs. © 2024 John Wiley and Sons Inc. All rights r... 详细信息

关键词： Phosphorus compounds

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Rb_(5)Ba_(2)(B_(10)O_(17))_(2)(BO_(2)):The formation of unusual functional [BO_(2)]^(-) in borates with deep-ultraviolet transmission window

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Science China Chemistry 2022年第4期65卷 719-725页

作者： Yanhui Zhang Fuming Li Rong Yang Yun Yang Fangfang Zhang Zhihua Yang Shilie Pan CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics&ChemistryChinese Academy of SciencesXinjiang Key Laboratory of Electronic Information Materials and DevicesUrumqi 830011China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

The design and synthesis of new deep-ultraviolet(DUV)optical materials are important but *** is well known that the polarizability anisotropy of linear[BO_(2)]^(−)is larger than those of[BO_(3)]^(3−)and[BO_(4)]^(5−),which is the better choice for exploring excellent optical ***,we search for such crystals in borate systems based on the unusual fundamental structural unit[BO_(2)]^(−).By combining the linear[BO_(2)]^(−)with the traditional triangular[BO_(3)]^(3−)and tetrahedral[BO_(4)]^(5−)units,a new mixed metal borate,Rb_(5)Ba_(2)(B_(10)O_(17))_(2)(BO_(2))was obtained via high-temperature solution *** exhibits excellent optical properties including a DUV transmission window(188 nm)and suitable birefringence(0.06).It also has good thermal stability and its crystal plates can be prepared ***,the strategies of designing borates with[BO_(2)]^(−)units have been proposed from the transformation of crystal framework and the preparation method.

关键词： isolate BO_(2) borate crystal deep-ultraviolet transmission birefringence

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SAW Resonators on 15°YX-LiNbO3/SiO2/Sapphire Substrate with Excellent Electromechanical Coupling

SAW Resonators on 15°YX-LiNbO3/SiO2/Sapphire Substrate with...

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2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFCS 2023

作者： Wu, Jinbo Chen, Yang Zhang, Liping Zheng, Pengcheng Yao, Hulin Fang, Xiaoli Huang, Kai Zhang, Shibin Ou, Xin Shanghai Institute of Microsystem and Information Technology The State Key Laboratory of Functional Materials for Informatics Shanghai China

ISBN: (纸本)9798350311426

In this work, the shear horizontal surface acoustic wave (SH-SAW) resonators were demonstrated on 15° YX-LiNbO3/SiO2/sapphire (LiNbO3-on-sapphire, LNOS) substrate. Compared to the reported gigahertz SAW resonators based on piezoelectric heterogeneous substrates, the fabricated resonator in this work exhibits a state-of-the-art electromechanical coupling coefficient (k2) of 42.2%, a maximum Bode-Q (Qmax) of 1457 and an excellent figure of merit (k2×Qmax) of 615. Besides, several methods for suppressing transverse modes were implemented and compared. Tilted interdigital-transducers combined with the apodization technique can suppress the transverse modes more thoroughly while maintaining decent Q values. Overall, SAW devices based on the LNOS substrate have great potential for RF filters with low insertion loss, steep skirts, and wide bandwidth. © 2023 IEEE.

关键词： electromechanical coupling coefficient LiNbO3-on-insulator RF loss sapphire Surface acoustic wave resonator transverse mode

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Designing principles of advanced sulfur cathodes toward practical lithium-sulfur batteries

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SusMat 2022年第1期2卷 34-64页

作者： Hongtai Li Yanguang Li Liang Zhang Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhouP.R.China

As one of the most promising candidates for next-generation energy storage systems,lithium-sulfur(Li-S)batteries have gained wide attention owing to their ultrahigh theoretical energy density and low ***,their road to commercial application is still full of thorns due to the inherent sluggish redox kinetics and severe polysulfides *** sulfur cathodes with adsorbents/catalysts has been proposed to be an effective strategy to address the foregoing challenges,whereas the complexity of sulfur cathodes resulting from the intricate design parameters greatly influences the corresponding energy density,which has been frequently *** this review,the recent progress in design strategies of advanced sulfur cathodes is summarized and the significance of compatible regulation among sulfur active materials,tailored hosts,and elaborate cathode configuration is clarified,aiming to bridge the gap between fundamental research and practical application of Li-S *** representative strategies classified by sulfur encapsulation,host architecture,and cathode configuration are first highlighted to illustrate their synergetic contribution to the electrochemical performance *** integration principles are also proposed to guide the practical design of advanced sulfur ***,prospects and future directions are provided to realize high energy density and long-life Li-S batteries.

关键词： host materials Li-S batteries redox kinetics shuttle effect sulfur cathodes

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