Siming Dong
Stanford University
14 Papers
59 Citations
Siming Dong is an academic researcher from Stanford University. The author has contributed to research in topics: Bilayer & Layer (electronics). The author has an hindex of 7, co-authored 14 publications. Previous affiliations of Siming Dong include Tsinghua University.
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Papers
Enhanced catalytic activity of Fe bimetallic modified PAN fiber complexes prepared with different assisted metal ions for degradation of organic dye
TL;DR: In this paper, two transition metal ions (Cu2+ and Co2+) and two rare earth metal ion (Ce3+ and La3+) were used as the assisted metal ions, respectively to prepare the transition metal and rare metal assisted Fe bimetallic amidoximated polyacrylonitrile (AO-PAN) fiber complexes.
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Contamination and moisture absorption effects on the mechanical properties of catalyst coated membranes in PEM fuel cells
TL;DR: In this paper, the effects of foreign cations and chloride contamination and moisture absorption on the mechanical properties of CCMs were investigated and it was shown that the fracture resistance of contaminated CCMs is significantly reduced and the time dependent growth of cracks in the CLs in moist air environments occurs at lower crack driving force thresholds.
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Conductive Transparent TiNx/TiO2 Hybrid Films Deposited on Plastics in Air Using Atmospheric Plasma Processing
TL;DR: In this paper, the successful deposition of conductive transparent TiNx/TiO2 hybrid films on both polycarbonate and silicon substrates from a titanium ethoxide precursor is demonstrated in air using atmospheric plasma processing equipped with a high temperature precursor delivery system.
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Dual Precursor Atmospheric Plasma Deposition of Transparent Bilayer Protective Coatings on Plastics
TL;DR: A dual organic and inorganic precursor method to deposit transparent organosilicate protective bilayer coatings on poly methyl methacrylate (PMMA) substrates with atmospheric plasma deposition in ambient air is demonstrated.
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Optically Transparent Protective Coating for Plastics Using Dual Spray and Atmospheric Plasma Deposition
Abstract: The successful processing of bilayer protective coatings on plastics using a combined spray and atmospheric plasma deposition method is shown. The base layer is a spray deposited coating with high adhesion using (3‐glycidyloxypropyl) trimethoxysilane and tetrapropyl zirconate (TPOZ) precursors. The top dense layer is deposited by atmospheric plasma deposition with a tetraethyl orthosilicate precursor. The coating deposition rate, chemical composition, elastic modulus, hardness, and adhesion to poly(methyl methacrylate) (PMMA) substrates are investigated. The adhesion to the polymer substrate is found to decrease with increasing TPOZ content in the precursor solution, while the elastic modulus and hardness of the base layer increase. A silane surface pretreatment of the PMMA substrate is shown to significantly increase the coating adhesion. The adhesion of the optimized coating is so high that it forces the debond interface change from adhesive failure at the coating/PMMA interface to cohesive failure within the PMMA substrate. The combined bilayer structure exhibits a >90% transparency in the visible wavelengths, eightfold increase in adhesion energy and fourfold increase in Young's modulus compared to commercial sol–gel polysiloxane coatings. The approach provides a strategy for an unprecedented combination of adhesion and mechanical properties.
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