Index Catalog // ScholarsArchive@OSU

Graphene reduced from magnesiothermic reaction

Creator:: Luo, Wei, Wang, Bao, Wang, Xingfeng, Stickle, William F., and Ji, Xiulei
Abstract:: We, for the first time, employ magnesiothermic reaction to convert microwave-irradiated graphite oxide to pure graphene. The magnesiothermic reaction raises the carbon to oxygen atomic ratio from 22.2 to 165.7 and maintains a high surface area. The new strategy demonstrates an efficient method for obtaining highly pure graphene materials.
Resource Type:: Article
Full Text:: Production of graphene by reduction using a

Efficient Fabrication of Nanoporous Si and Si/Ge Enabled by a Heat Scavenger in Magnesiothermic Reactions

Creator:: Luo, Wei, Wang, Xingfeng, Meyers, Colin, Wannenmacher, Nick, Sirisaksoontorn, Weekit, Lerner, Michael M., and Ji, Xiulei
Abstract:: Magnesiothermic reduction can directly convert SiO₂ into Si nanostructures. Despite intense efforts, efficient fabrication of highly nanoporous silicon by Mg still remains a significant challenge due to the exothermic reaction nature. By employing table salt (NaCl) as a heat scavenger for the magnesiothermic reduction, we demonstrate an effective route to...
Resource Type:: Article
Full Text:: reaction nature. By employing table salt (NaCl) as a heat scavenger for the magnesiothermic reduction, we

Preparation and Properties of Porous Carbon Materials

Creator:: Xing, Zhenyu
Abstract:: Porous carbon is indispensable in modern technology applications. It is used for energy storage, gas separation, water purification, catalyst support, and chromatography. The diversity of its applications stems from its unique properties, including high specific surface area, tunable pore volume, and chemical stability. Specifically, the large surface area provides high...
Resource Type:: Dissertation
Full Text:: introduce a porous graphene preparation by CO2 activation and magnesiothermic reduction of CO2. On one

Electrical characterization of thermally reduced graphite oxide

Creator:: Jewell, Ira
Abstract:: This thesis describes the transport properties observed in thermally treated graphite oxide (GO), which holds promise as an economical route to obtaining graphene. Graphene is a material consisting of a single atomic plane of carbon atoms and was first isolated as recently as 2004. Several isolation techniques have been investigated,...
Resource Type:: Masters Thesis
Full Text:: graphene obtained by the thermal reduction of graphite oxide (GO) in a forming gas ambient (N2/H2). For

Reducing CO₂ to dense nanoporous graphene by Mg/Zn for high power electrochemical capacitors

Creator:: Xing, Zhenyu, Wang, Bao, Gao, Wenyang, Pan, Changqing, Halsted, Joshua K., Chong, Elliot S., Lu, Jun, Wang, Xingfeng, Luo, Wei, Chang, Chih-Hung, Wen, Youhai, Ma, Shengqian, Amine, Khalil, and Ji, Xiulei
Abstract:: Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
Resource Type:: Article

Graphene Biotransistors, an Exploration of Neurosensing and Biofilm-sensing Applications

Creator:: Brown, Morgan A.
Abstract:: Atomically-thin graphene sheets have unprecedented characteristics for biosensing applications. These characteristics include mechanical flexibility and strength, optical transparency, electrical sensitivity and biocompatibility. The primary theme of this dissertation is the characterization and application of graphene field-effect transistors (FETs) in biologically-relevant physiological environments.Understanding the interface that forms between an electrolyte and...
Resource Type:: Dissertation
Full Text:: critical to understanding biosensing mechanisms. The electronic signals measured by a graphene FET

Phthalocyanine-loaded graphene nanoplatform for imaging-guided combinatorial phototherapy

Creator:: Taratula, Olena, Patel, Mehulkumar, Schumann, Canan, Naleway, Michael A., Pang, Addison J., He, Huixin, and Taratula, Oleh
Abstract:: We report a novel cancer-targeted nanomedicine platform for imaging and prospect for future treatment of unresected ovarian cancer tumors by intraoperative multimodal phototherapy. To develop the required theranostic system, novel low-oxygen graphene nanosheets were chemically modified with polypropylenimine dendrimers loaded with phthalocyanine (Pc) as a photosensitizer. Such a molecular design...
Resource Type:: Article
Full Text:: reduction in the fluorescence and ROS generation as a result of a π–π stacking interaction with graphene

XingZhenyuChemistryReducingCO2DenseNanoporous.pdf

Creator:: Xing, Zhenyu, Wang, Bao, Gao, Wenyang, Pan, Changqing, Halsted, Joshua K., Chong, Elliot S., Lu, Jun, Wang, Xingfeng, Luo, Wei, Chang, Chih-Hung, Wen, Youhai, Ma, Shengqian, Amine, Khalil, and Ji, Xiulei
Abstract:: Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
Full Text:: graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly

XingZhenyuChemistryReducingCO2DenseNanoporous_SupplementaryMaterial.pdf

Creator:: Xing, Zhenyu, Wang, Bao, Gao, Wenyang, Pan, Changqing, Halsted, Joshua K., Chong, Elliot S., Lu, Jun, Wang, Xingfeng, Luo, Wei, Chang, Chih-Hung, Wen, Youhai, Ma, Shengqian, Amine, Khalil, and Ji, Xiulei
Abstract:: Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m...
Full Text:: . 13 Figure S6. TEM images of product of CO2 reduction by a mixture of Zn/Mg with an atomic

Electrical Transport Measurements Show Intrinsic Doping and Hysteresis in Graphene p-n Junction Devices

Creator:: Plunkett, Garrett R.
Abstract:: Understanding the electrical transport properties of graphene provides a basis for determining its future as a potential semiconducting device that can be used for the next generation of transistors and photodetectors. Graphene p-n junctions can also function as field effect transistors, and thus are a logical starting point for I-V...
Resource Type:: Undergraduate Thesis
Full Text:: band structure of graphene is calculated using a tight binding model, which uses an approximate set

ScholarsArchive@OSU

Graphene reduced from magnesiothermic reaction

Efficient Fabrication of Nanoporous Si and Si/Ge Enabled by a Heat Scavenger in Magnesiothermic Reactions

Preparation and Properties of Porous Carbon Materials

Electrical characterization of thermally reduced graphite oxide

Reducing CO₂ to dense nanoporous graphene by Mg/Zn for high power electrochemical capacitors

Graphene Biotransistors, an Exploration of Neurosensing and Biofilm-sensing Applications

Phthalocyanine-loaded graphene nanoplatform for imaging-guided combinatorial phototherapy

XingZhenyuChemistryReducingCO2DenseNanoporous.pdf

XingZhenyuChemistryReducingCO2DenseNanoporous_SupplementaryMaterial.pdf

Electrical Transport Measurements Show Intrinsic Doping and Hysteresis in Graphene p-n Junction Devices

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