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REDUCED SILICA GEL FOR SILICON ANODE BASED LI-ION BATTERY AND GOLD NANOPARTICLE AT MOLYBDENUM DISULFIDE PHOTO CATALYST FOR SELECTIVE OXIDATION REACTION

Sun, Yuandong
http://rave.ohiolink.edu/etdc/view?acc_num=akron1490479937863989

Abstract Details

2017, Master of Science, University of Akron, Polymer Science.
ABSTRACT In the recent studies, carbon-silicon based insertion anode material has shown great performance compared with conventional graphite anode of lithium ion batteries (LIB) for the high specific capacity1-3. However, there are still challenges which limits the practical utilization of the carbon-silicon anodes, such as the severe degradation of capacity. In this work, commercial silica gel micron-particles used for chromatography were adopted as starting material and treated with reduction and carbon coating processes, generating micron-sized Si-SiC-C composite anode material. This anode fabricated from cheap precursors and mild synthesis exhibited reasonable capacity and stable electrochemical performance together with graphite. The morphology and composition of the composite were characterized by scanning electron spectroscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). Molybdenum disulfide (MoS2), a two dimensional material, has attracted a lot of research interests in these years4. With its large surface area and unique semi-conductor properties, we are inspired to develop MoS2 as a supporting material for the catalyst of selective oxidation reaction. Gold nanoparticles were deposited onto the exfoliated MoS2 flakes by deposition-precipitation method. The morphology of the composite was studied with TEM. Isoproponal was employed as reagent for the photocatalytic reaction catalyzed by the prepared composite catalyst. The reaction process and the final product were characterized by in-stu infrared (IR) spectroscopy and nuclear magnetic resonance (NMR).
Yu Zhu (Advisor)
Steven Chuang (Committee Member)
46 p.
Chemistry; Energy; Physical Chemistry
silicon anode; lithium ion battery; molybdenum disulfide; selective oxidation reaction

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Citations

  • Sun, Y. (2017). REDUCED SILICA GEL FOR SILICON ANODE BASED LI-ION BATTERY AND GOLD NANOPARTICLE AT MOLYBDENUM DISULFIDE PHOTO CATALYST FOR SELECTIVE OXIDATION REACTION [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1490479937863989

    APA Style (7th edition)

  • Sun, Yuandong. REDUCED SILICA GEL FOR SILICON ANODE BASED LI-ION BATTERY AND GOLD NANOPARTICLE AT MOLYBDENUM DISULFIDE PHOTO CATALYST FOR SELECTIVE OXIDATION REACTION. 2017. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1490479937863989.

    MLA Style (8th edition)

  • Sun, Yuandong. "REDUCED SILICA GEL FOR SILICON ANODE BASED LI-ION BATTERY AND GOLD NANOPARTICLE AT MOLYBDENUM DISULFIDE PHOTO CATALYST FOR SELECTIVE OXIDATION REACTION." Master's thesis, University of Akron, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1490479937863989

    Chicago Manual of Style (17th edition)

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