Liangjun Yin

University of Electronic Science and Technology of China

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Xin Xu

University of Science and Technology of China

Xian Jian

University of Electronic Science and Technology of China

Longjiang Deng

University of Electronic Science and Technology of China

Xianyu Jiang

University of Electronic Science and Technology of China

Simeon Agathopoulos

University of Ioannina

Haipeng Lu

National Engineering Research Center of Electromagnetic Radiation Control Materials

Luyuan Hao

Dalian Maritime University

Linbo Zhang

National Engineering Research Center of Electromagnetic Radiation Control Materials

Xin Wang

Hefei University of Technology

Jianliang Xie

National Engineering Research Center of Electromagnetic Radiation Control Materials

Cooperative Institutions

University of Electronic Science and Technology of China

127

National Engineering Research Center of Electromagnetic Radiation Control Materials

Chinese Academy of Sciences

University of Science and Technology of China

Chengdu University

Sichuan University

State Key Laboratory of Electronic Thin Films and Integrated Devices

Huzhou University

Central South University

University of Chinese Academy of Sciences

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Self-supported porous heterostructure WC/WO3−x ceramic electrode for hydrogen evolution reaction in acidic and alkaline media

Journal of Advanced Ceramics (2022)

Feihong Wang Binbin Dong Junwei Wang Nianwang Ke Chuntian Tan

Abstract Tungsten carbide (WC)-based materials are widely considered as the hydrogen evolution reaction (HER) process catalysts due to their “Pt-like” electronic structure. Nonetheless, traditional powder electrodes have a high cost, and display problems related to the process itself and the poor stability over operation time. This paper presented a self-supported asymmetric porous ceramic electrode with WO 3− x whiskers formed in situ on the walls of the finger-like holes and membrane surface, which was prepared by combining phase inversion tape-casting, pressureless sintering, and thermal treatment in a CO 2 atmosphere. The optimized ceramic electrode displayed good catalytic HER activity and outstanding stability at high current densities. More specifically, it demonstrated the lowest overpotentials of 107 and 123 mV and the lowest Tafel slopes of 59.3 and 72.4 mV·dec −1 at 10 mA·cm −2 in acidic and alkaline media, respectively. This superior performance was ascribed to the structure of the ceramic membrane and the charge transfer efficiency, which was favored by the in situ developed WC/WO 3− x heterostructure and the oxygen vacancies.

Tungsten Carbide

10.1007/s40145-022-0604-4

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Citations (45)

Enhancement in photoluminescence performance of carbon-decorated T-ZnO

Nanotechnology (2015)

Xian Jian Guozhang Chen Chao Wang Liangjun Yin Gang Li

The facile preparation of ZnO possessing high visible luminescence intensity remains challenging due to an unclear luminescence mechanism. Here, two basic approaches are proposed to enhance the luminescent intensity based on the theoretical analysis over surface defects. Based on the deduction, we introduce a methodology for obtaining hybrid tetrapod-like zinc oxide (T-ZnO), decorated by carbon nanomarterials on T-ZnO surfaces through the catalytic chemical vapor deposition approach. The intensity of the T-ZnO green emission can be modulated by topography and the proportion of carbon. Under proper experiment conditions, the carbon decorating leads to dramatically enhanced luminescence intensity of T-ZnO from 400 to 700 nm compared with no carbon decorated, which elevates this approach to a simple and effective method for the betterment of fluorescent materials in practical applications.

Carbon fibers

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Emission intensity

Deposition

10.1088/0957-4484/26/12/125705

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In-Depth Insight into the Inhibition Mechanism in Iron-Based Composites with Bifunction of Anti-Corrosion and Electromagnetic Wave Absorption Based on Experiments and Theoretical Calculations

Xianyu Jiang Jianlian Xie Liangjun Yin Jian Peng Jianxiao Li

The design of anti-corrosive magnetic metal microwave-absorbing materials is crucial for enhancing the environmental compatibility and service life of military objectives in practical applications. Herein, CI@BTSA@OTMS composites were synthesized using an improved sol-gel method with 2-benzothiazolylthio-succinic acid (BTSA) and trimethoxy (octadecyl) silane (OTMS) as precursor materials. The corrosion resistance mechanisms were investigated in both experimental research and theoretical calculations. Electrochemical experimental results affirmed that the CI@BTSA@OTMS composites exhibited exceptional anti-corrosion with the corrosion potential (Ecorr) shifted positively to 0.05 V, the corrosion current (Icorr) exhibited a low level, measuring only 1.1 × 10−7 A/ cm−2, and the protection efficiency attained 99.91%. The CI@BTSA@OTMS composites exhibited a higher non-wetting property with a contact angle of 138.9°. After 480 hours of exposure in a natural salt spray test, the composites still retained relatively intact morphological and compositional characteristics. These results can be attributed to the effective inhibition of corrosive species' proximity due to the spatial isolation and barrier effects, preventing the formation of an electrochemical corrosion circuit. Moreover, simulations and calculations are employed for revealing the diffusion and inhibition mechanisms of corrosive media. For electromagnetic performance, the introduction of organic layer BTSA@OTMS contributed to improve impedance matching in magnetic metal microwave absorbers.

10.2139/ssrn.4724598

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ChemInform Abstract: Intriguing Luminescence Properties of (Ba, Sr)₃Si₆O₉N₄: Eu²⁺ Phosphors via Modifying Synthesis Method and Cation Substitution.

ChemInform (2016)

Liangjun Yin et al.

Abstract A series of green to blue emitting phosphors of nominal composition (Ba, Sr) 2.85 Si 6 O 9 N 4 :0.15Eu 2+ is prepared by solid state reaction of BaCO 3 , SrCO 3 , Eu 2 O 3 , Si 3 N 4 , and SiO 2 (high‐energy ball milling, annealing under N 2 for 4 h at 1200 °C).

10.1002/chin.201635007

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Enhanced anti-corrosion and microwave absorption performance with carbonyl iron modified by organic fluorinated chemicals

Applied Surface Science (2021)

Xianyu Jiang Weihong Wan Bo Wang Linbo Zhang Liangjun Yin

Carbonyl iron

10.1016/j.apsusc.2021.151320

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Citations (64)

Carbon-decorated LiMn2O4 nanorods with enhanced performance for supercapacitors

Journal of Alloys and Compounds (2019)