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Institution

Wuhan University of Technology

EducationWuhan, China
About: Wuhan University of Technology is a education organization based out in Wuhan, China. It is known for research contribution in the topics: Microstructure & Photocatalysis. The organization has 40384 authors who have published 36724 publications receiving 575695 citations. The organization is also known as: WUT.


Papers
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Journal ArticleDOI
TL;DR: A comprehensive review of the many applications of DSC in glass science with focus on glass transition, relaxation, polyamorphism, and crystallization phenomena is presented and recent advances in DSC characterization technology are emphasized.
Abstract: Differential scanning calorimetry (DSC) is a powerful tool to address some of the most challenging issues in glass science and technology, such as the nonequilibrium nature of the glassy state and ...

207 citations

Journal ArticleDOI
TL;DR: In this article, an outside-in morphological evolution mechanism from microsphere to 3D nanofiber network is proposed based on time-dependent experiments, and the as-synthesized material exhibits excellent cyclability (95.9% capacity retention over 1000 cycles at 10C) and enhanced high-rate performance (94.1% at 100C) for sodium half cell.

206 citations

Journal ArticleDOI
TL;DR: In this article, a melt-spinning-based synthesis that forms in situ ZnTe nanoprecipitates to produce an extremely low lattice thermal conductivity of ∼ 0.35 W m−1 K−1 at 400 K, approaching the amorphous limit in the Bi2−xSbxTe3 system, while preserving the high power factor of Bi0.46Sb1.54Te3.
Abstract: Defect engineering and nano-structuring are the core stratagems for improving thermoelectric properties. In bismuth telluride alloys nanosizing individual crystallites has been extensively studied in efforts to reduce the thermal conductivity, but nanostructuring with second phases has been more challenging. In this study, we demonstrate a thermoelectric figure of merit ZT of 1.4 at 400 K, realized in Zn-containing BiSbTe alloys (specifically Bi0.46Sb1.54Te3) by integrating defect complexity with nanostructuring. We have succeeded in creating nanostructured BiSbTe alloys containing ZnTe nanoprecipitates. We present a melt-spinning-based synthesis that forms in situ ZnTe nanoprecipitates to produce an extremely low lattice thermal conductivity of ∼0.35 W m−1 K−1 at 400 K, approaching the amorphous limit in the Bi2−xSbxTe3 system, while preserving the high power factor of Bi0.46Sb1.54Te3. These samples show excellent repeatability and thermal stability at temperatures up to 523 K. DFT calculations and experimental results show that Zn is inclined to form dual site defects, including two substitutional defects ZnBi/Sb′ and a Te vacancy, to achieve full charge compensation, which was further explicitly corroborated by Positron annihilation measurement. The strong enhancement of thermoelectric properties was validated in a thermoelectric module fabricated with the melt-spun p-legs (ZnTe-nanostructured BiSbTe) and zone-melt n-legs (conventional BiTeSe) which achieved a thermoelectric conversion efficiency of 5.0% when subjected to a temperature gradient of 250 K, representing about 40% improvement compared with a commercial zone-melt-based module. The results presented here represent a significant step forward for applications in thermoelectric power generation.

205 citations

Journal ArticleDOI
15 Nov 2017-Joule
TL;DR: In this article, a review of the advances in structure and property optimizations of battery electrode materials for high-efficiency energy storage is presented, where the intrinsic structures of electrode materials play a crucial role in understanding battery chemistry and improving battery performance.

205 citations

Journal ArticleDOI
TL;DR: In this article, the effects of graphene loading on the microstructures and photoelectric conversion performance of dye-sensitized solar cells were investigated, and a moderate amount of graphene (0.75 wt%) largely lowered the DSSC performance, which not only impaired the crystallinity of the TiO2-NSs but also shielded the light adsorption of the dyes and reduced the number of photogenerated electrons.
Abstract: Dye-sensitized solar cells (DSSCs) based on TiO2 nanosheets (TiO2-NSs)/graphene nanocomposite films were fabricated, and the effects of graphene on the microstructures and photoelectric conversion performance of the as-fabricated DSSC were investigated. The graphene loading clearly influences the textural properties (including specific surface areas, porosity and pore volume) and the optical absorption properties. Moreover, the charge transfer and transport versus the charge trapping and recombination is also affected by the graphene loading. As a consequence, the photoelectric conversion efficiency of the TiO2-NSs/graphene nanocomposite film electrodes can be improved to a great extent upon graphene loading, dependent on the loading amount of graphene. A moderate amount of graphene ( 0.75 wt%) largely lowered the DSSC performance. Higher graphene loading not only impaired the crystallinity of the TiO2-NSs, but also shielded the light adsorption of the dyes and reduced the number of photogenerated electrons.

205 citations


Authors

Showing all 40691 results

NameH-indexPapersCitations
Jiaguo Yu178730113300
Charles M. Lieber165521132811
Dongyuan Zhao160872106451
Yu Huang136149289209
Han Zhang13097058863
Chao Zhang127311984711
Bo Wang119290584863
Jianjun Liu112104071032
Hong Wang110163351811
Jimmy C. Yu10835036736
Søren Nielsen10580645995
Liqiang Mai10461639558
Bei Cheng10426033672
Feng Li10499560692
Qi Li102156346762
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023140
2022599
20213,894
20203,665
20193,551
20183,076