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Start Over Author "Wu, Yanhong" Publisher elsevier bv
140 results on '"Wu, Yanhong"'

14. Nerve transcriptomes in autoimmune and genetic demyelinating neuropathies: Pathogenic pathway assessment of nerve demyelination

Author

Rashed, Hebatallah R., primary, Niu, Zhiyv, additional, Dyck, Peter J., additional, Dyck, P. James B., additional, Mauermann, Michelle L., additional, Berini, Sarah E., additional, Dubey, Divyanshu, additional, Mills, John R., additional, Nathan, P., additional, Wu, Yanhong, additional, Spinner, Robert E., additional, Dasari, Surendra, additional, and Klein, Christopher J., additional

Published
2023
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25. Ascorbic acid-assisted defect healing and stack ordering of graphene films towards high power thermal dispersion

Author

Yan Qu, Lei Ji, Yuan Hong, Wu Yanhong, Bucun Zhou, Dawei Zhang, Chuanren Ye, Tang Runli, Yanwu Zhu, Zuo Pan, and Hengxing Ji

Subjects
Materials science, Graphene, Annealing (metallurgy), Oxide, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Ascorbic acid, 01 natural sciences, 0104 chemical sciences, law.invention, chemistry.chemical_compound, Thermal conductivity, chemistry, law, General Materials Science, Graphite, Composite material, 0210 nano-technology, Dispersion (chemistry), Polyimide
Abstract

The thermal dispersion power depends on thermal conductivity and thickness of the thermal dispersion material that is a critical component of modern electronic devices due to the demands of high operating power in a miniaturized space. Films made of assembled graphene flakes have been becoming an emerging thermal dispersion material owing to their high thermal conductivity and tunable thickness up to millimeters, which outperform that of artificial graphite films made from polyimide. But the thermal conductivity typically decreases with the increase of film thickness. In our work, by pre-reducing the graphene oxide with Vitamin C and sequentially annealing the stacking films at 2950 °C, a 80 μm-thick graphene film (GF) with an in-plane thermal conductivity of above 1600 W/(m·K) is achieved. Detailed characterizations indicate that, the addition of Vitamin C is beneficial to the assembly ordering of graphene oxide platelets and the defect healing during the thermal annealing, which both contribute to the excellent thermal conductivity of the films. Our work provides an industrially scalable strategy towards high performance heat dissipation films for future electronic devices.

Published
2021

47. Rapid and effective removal of uranium (VI) from aqueous solution by facile synthesized hierarchical hollow hydroxyapatite microspheres

Author

Minhua Su, Diyun Chen, Daniel C.W. Tsang, Wu Yanhong, and Lingjun Kong

Subjects
021110 strategic, defence & security studies, Environmental Engineering, Aqueous solution, Materials science, Health, Toxicology and Mutagenesis, 0211 other engineering and technologies, chemistry.chemical_element, Sorption, 02 engineering and technology, 010501 environmental sciences, Uranium, 01 natural sciences, Pollution, Adsorption, Autunite, chemistry, Chemical engineering, Chemisorption, Specific surface area, Environmental Chemistry, Freundlich equation, Waste Management and Disposal, 0105 earth and related environmental sciences
Abstract

Rapidly increasing development of nuclear power stimulates the exploration of low-cost and highly efficient materials to selectively remove uranium (VI) from contaminated wastewater streams. Herein, we successfully developed a novel hydroxyapatite (HAP) adsorbent by using a facile and template-free hydrothermal method. The XRD results demonstrated that the HAP was crystallized in hexagonal structure (space group P63/m(176)), and the images of SEM and TEM indicated that the HAP possessed hollow and hierarchical nanostructure. A large BET specific surface area (182.6 m2/g) and average pore size of 10.5 nm, suggested that the hierarchical hollow HAP microspheres could provide sufficient active sites for highly efficient removal of uranium from aqueous solutions, indicated the HAP might be a prompt emergency material for the remediation of nuclear leakage accident. Freundlich isotherm and pseudo-second-order kinetics model fitted well to sorption experimental data. The study was further advanced by FT-IR and XPS. The sorption mechanism was mainly attributed to surface chemisorption between U(VI) and HAP, forming a new U-containing compound, viz., autunite (Ca(UO2)2(PO4)2·3H2O).

Published
2019

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