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Reduced graphene oxide

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Reduced graphene oxide supported tin oxide-boron oxide flexible paper anodes for Li-ion batteries

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Diffraction peaks of graphene oxide, reduced graphene oxide, pristine B 2 O 3 , pristine SnO 2 nanopowders, SnO 2 -B 2 O 3 nanopowders, and SnO 2 -B 2 O 3 /rGO nanocomposite samples are given in Figure 4a. High crystalline pristine SnO 2 , SnO 2 -B 2 O 3 , and SnO 2 -B 2 O 3 /rGO composite structures indicated strong diffraction peaks corresponding to and (211) planes near other weak peaks of cassiterite planes (JCPDS .

Photodegradation of Reactive Black 5 and raw textile wastewater by heterogeneous photo-Fenton reaction using amino-Fe3O4-functionalized graphene oxide as nanocatalyst

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Various carbonaceous nanomaterials have been recently studied as supports for metallic oxides, such as graphene oxide (GO), reduced graphene oxide (rGO), covalently functionalized graphene and 3D graphene-based hydrogels have been recently stud- ied ( Gómez-Pastora et al., 2017 . Wang et al., 2019 . Zhang et al., 2019. Graphene is defined as a two-dimensional (2D) nanosheet of sp 2 hy- bridized carbon atoms arranged in six-membered rings ( Dreyer et al., 2010 . Randviir et al., 2014.

Simultaneous determination of synthetic dyes in gummy candy using novel mesoporous magnetic graphene oxide@zein aerogel followed by a high performance liquid chromatography diode array detector

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Selective separation and determination of the synthetic colorants in beverages by magnetic solid‐phase dispersion extraction based on a Fe3O4/reduced graphene oxide nanocomposite followed by high‐performance liquid chromatography with diode array detection. https://doi.org/10.1002/jssc.201500014

Polymer-wrapped reduced graphene oxide/nickel cobalt ferrite nanocomposites as tertiary hybrid supercapacitors: insights from experiment and simulation

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The modi fi ed Hummer's method was used for the synthesis of the graphene oxide, and the detailed procedure has been described elsewhere [17].. Similar procedure was followed for the synthesis of the CGNC sample by using 20 mL of GO (1 mgmL 1 ) and 20 mL of CNTs (1 mgmL 1. The rGO and Ni 0.5 Co 0.5 Fe 2 O 4 was synthe- sized under the similar conditions with nanoparticles precursors and GO, respectively..

Nghiên cứu tổng hợp tấm nano graphene từ oxít graphene bằng phương pháp chiếu xạ gamma Co-60

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Graphene oxide and reduced graphene oxide studied by the XRD, TEM and electron spectroscopy methods”, Journal of Electron Spectroscopy and Related Phenomena 195, pp. Shichoon Lee, Sung Hun Eom, et al. (2013), “Large-scale production of high-quality reduced graphene oxide”, Chemical Engineering Journal 233, pp.

Fabrication and characterization of enhanced hydrazine electrochemical sensor based on gold nanoparticles decorated on the vanadium oxide, ruthenium oxide nanomaterials, and carbon nanotubes composites

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An electrochemical sensing platform of cobalt oxide@gold nanocubes interleaved reduced graphene oxide for the selective determination of hydrazine. 10.1016/j.electacta . Electrochemical determination of hydrazine at gold and platinum nanoparticles modified poly(L-serine) glassy carbon electrodes. doi: 10.3906/kim-1906-23 24.

Tổng hợp và nghiên cứu khả năng hấp phụ - xúc tác của hệ composit FeOx/oxit graphen

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Gomez-Navarro C, Weitz RT, Bittner A.M, Scolari, M, Mews A, Burghard, M, Kern,K (2007), “Electronic transport properties of individual chemically reduced graphene oxide sheets”, Nano Lett, 7, pp. Wu (2010), “Graphene oxide/ferric hydroxide composites for efficient arsenate removal from drinking water”, J.. W (2012), “Uranium (VI) adsorption on graphene oxide nanosheets from aqueous solutions”, Chem.

A hierarchical porous aerogel nanocomposite of graphene/NiCo2S4 as an active electrode material for supercapacitors

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Lian, Growth of vertically aligned Co 3 S 4 /CoMo 2 S 4 ultrathin nanosheets on reduced graphene oxide as a high-performance super- capacitor electrode, J. hydrogel for high-performance solid-state supercapacitors, Chem. Fan, Hierarchical porous NiCo 2 S 4 -rGO composites for high-performance supercapacitors, Electrochim.

Facile hydrothermal method for fabrication of seedless ZnO nanorod/go composite on PCB

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Chen, Preparation of ZnO Flower/reduced Graphene Oxide Composite with Enhanced Photocatalytic Performance under Sunlight, Ceramics International, Vol. 4007-4013 https://doi.org/10.1016/j.ceramint

Facile fabrication of nano zerovalent iron – Reduced graphene oxide composites for nitrate reduction in water

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However, rGO-nZVI- B, most of the nZVI particulates are covered with an insulating oxide layer, which limits electrons transfer to some extent. In the case of rGO- nZVI-P, this effect is minimised, which enhances electrons flux. When compared to rGO-nZVI-B, the enhanced efficiency of nitrate reduction by rGO-nZVI-P is ascribed due to higher electrons flux.

Mở đầu

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Để giải quyết bài toán trên sẽ tiến hành nghiên cứu chế tạo composite Ag nanowires và graphene, lợi dụng tính bền của graphene bảo vệ cho lớp Ag ở bên dưới. Hybrid dạng này vẫn cho độ truyền qua cao và độ dẫn điện tốt. Trong chuyên đề này chúng tôi tập trung chủ yếu chế tạo màng dẫn điện trong suốt Ag NWS và hybird của AgNWs và rGO (reduced Graphene Oxide) ứng dụng làm điện cực trong pin mặt trời.

Hydrogen storage in formic acid as a renewable energy source using heterogeneous catalysis

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Au@Pd core-shell nanoclusters growing on nitrogen-doped mildly reduced graphene oxide with enhanced catalytic performance for hydrogen generation from formic acid. doi: 10.1039/C3TA12531A. Hydrogen generation from formic acid decomposition at room temperature using a NiAuPd alloy nanocatalyst. Highly efficient dehydrogenation of formic acid over a palladium-nanoparticle-based Mott Schottky photocatalyst.

Nghiên cứu tổng hợp và đặc trưng tính chất xúc tác trên cơ sở Pt/rGO cho phản ứng oxi hóa điện hóa etanol

311521-ND.pdf

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Ban lãnh đạo Viện Kỹ thuật Hóa học đã tạo điều kiện cho tôi trong quá trình học tập tại trường. iii DANH MỤC VIẾT TẮT DEFC Direct Ethanol Fuel Cells Pin nhiên liệu sử dùng trực tiếp etanol DMFC Direct Methanol Fuel Cells Pin nhiên liệu sử dùng trực tiếp metanol GO Graphene Oxide Graphen oxit rGO Reduced Graphene Oxide Graphen oxit đã khử MEA Membrane Electrode Assembly Tổ hợp điện cực-màng PEM Proton Exchange Membrane Màng trao đổi proton AEM Anion Exchange Membrane Màng trao đổi anion TEM Transmission

Sensitive determination of hydrazine using poly(phenolphthalein), Au nanoparticles and multiwalled carbon nanotubes modified glassy carbon electrode

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Electrochemical determination of hydrazine based on polydopamine-reduced graphene oxide nanocomposite.. Preparation of flower-like Pt nanoparticles decorated chitosan-grafted graphene oxide and its electrocatalysis of hydrazine. Role of the metal and surface structure in the electro-oxidation of hydrazine in acidic media.. Electrocatalytic determination of hydrazine by a glassy carbon electrode modified with PEDOP/MWCNTs-Pd nanoparticles.

Luận án Thạc sĩ Hoá học: Nghiên cứu phát triển điện cực biến tính với graphen oxit để phân tích axit ascorbic, paracetamol và caffein bằng phương pháp von-ampe hòa tan

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Khử bằng phương pháp vi sóng (Microwave Reduction Graphene Oxide . Khử bằng phương pháp quang hóa (Photochemical Reduction Graphene Oxide) [134];. Khử bằng phương pháp nhiệt (Thermal Reduced Graphene Oxide . Tổng hợp các công trình nghiên cứu khử GO bằng phương pháp von-ampe vòng (CV) từ 2017 đến 2019. Phương pháp Hummer cải tiến tổng hợp vật liệu graphen oxit. Graphit oxit (GrO) được tổng hợp theo phương pháp Hummers cải tiến . Các phương pháp nghiên cứu đặc trưng của vật liệu 2.2.2.1.

Facile synthesis of polypyrrole coated graphene Gr/AgeAg2O/PPy nanocomposites for a rapid and selective response towards ammonia sensing at room temperature

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Synthesis of Gr (Reduced Graphene Oxide). Synthesis of AgeAg 2 O/PPy and Gr/AgeAg 2 O/PPy nanocomposite. In a typical synthesis of the Ag-Ag 2 O nanocomposite, solutions of 25 mL of 0.1 M AgNO 3 , 50 mL of 0.05 M liq. NH 3 (aq), and 50 mL of 0.5 M NaOH were prepared separately in the beakers. A brownish black powder Gr/Ag e Ag 2 O was obtained and was washed with deionized water and absolute ethanol.

Electrodeposited Gold Nanoparticles Modified Screen Printed Carbon Electrode for Enzyme-Free Glucose Sensor Application

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Gunasekaran, Nickel nanoparticle–chitosan- reduced graphene oxide-modified screen-printed electrodes for enzyme-free glucose sensing in portable microfluidic devices, Biosensors and Bioelectronics . Zhang, A highly sensitive nonenzymatic glucose sensor based on NiO-modified multi- walled carbon nanotubes, Microchimica Acta . Chen, Nanoporous gold for enzyme-free electrochemical glucose sensors, Scripta Materialia .

Bài tiếng anh tổng hợp hữu cơ

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The 2D carbon materials, including graphene oxide (GO), reduced graphene oxide (rGO) and graphite nanoflakes (GFs), have attracted considerable interest in the fields of electrochemical energy storage.59,60 In addition to the theoretical and practical advantages of other carbon materials such as excellent electrical conductivity, high thermal stability and relatively low costs, the 2D carbon materials have large surface areas, crumpled nanostructures and enough interlayer spacing for easy access

Graphitic carbon nitride quantum dots: Synthesis and applications

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Dang et al., Photoelectrochemical aptasensor for sulfadimethoxine using g-C 3 N 4. quantum dots modified with reduced graphene oxide, Mikrochim Acta . Bai et al., Oxidized quasi‐carbon nitride quantum dots inhibit ice growth, Adv.. Zhou et al., A low-temperature solid-phase method to synthesize highly fluorescent carbon nitride dots with tunable emission, Chem Commun .

Fabrication and characterization of amidoxime-functionalized silica decorated with copper: A catalytic assembly for rapid reduction of dyes

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Highly efficient degradation of organic dyes by palladium nanoparticles decorated on 2D magnetic reduced graphene oxide nanosheets. Catalytic reductive degradation of methyl orange using air resilient copper nanostructures. Journal of Nanomaterials 2015. Highly efficient catalytic reductive degradation of various organic dyes by Au/CeO 2 -TiO 2 nano-hybrid.. Journal of Chemical Sciences 2017. Journal of Applied Polymer Science 2017.