scholarly journals Simple synthesis of ZnO nanoparticles on N-doped reduced graphene oxide for the electrocatalytic sensing of l-cysteine

RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35004-35011 ◽  
Author(s):  
Suling Yang ◽  
Gang Li ◽  
Chen Qu ◽  
Guifang Wang ◽  
Dan Wang
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Reduced Graphene Oxide ◽  
Zno Nanoparticles ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Simple Synthesis ◽  
Zno Nanoparticle ◽  
Reduced Graphene ◽  
One Step

A new kind of ZnO nanoparticle/N-doped reduced graphene oxide nanocomposite (ZnONPs/N-rGO) was synthesized through a low temperature, low-cost and one step hydrothermal process.

Nitrogen‐Doped Reduced Graphene Oxide Hydrogel Achieved via a One‐Step Hydrothermal Process

ChemNanoMat ◽  
2019 ◽  
Vol 5 (9) ◽  
pp. 1144-1151
Author(s):  
Man Song ◽  
Jie Zhao ◽  
Yu Meng ◽  
Lars Riekehr ◽  
Peng‐Xiang Hou ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrothermal Process ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
One Step

Synthesis of 3D hierarchical porous Ni–Co layered double hydroxide/N-doped reduced graphene oxide composites for supercapacitor electrodes

2019 ◽  
Vol 6 (2) ◽  
pp. 407-416 ◽  
Author(s):  
Wencong Wang ◽  
Ning Zhang ◽  
Ziran Ye ◽  
Zhanglian Hong ◽  
Mingjia Zhi
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Layered Double Hydroxide ◽  
Hydrothermal Process ◽  
Three Dimensional ◽  
Reduced Graphene ◽  
Hierarchical Porous ◽  
One Step ◽  
Double Hydroxide ◽  
Oxide Composites

In this work, three-dimensional porous Ni–Co layered double hydroxide nanosheets are vertically decorated on N-doped reduced graphene oxide via a simple one-step microwave-assisted hydrothermal process.

scholarly journals One-step, low temperature synthesis of reduced graphene oxide decorated with ZnO nanocrystals using galvanized iron steel scrap

2021 ◽  
Author(s):  
Rafael Valentin Tolentino-Hernandez ◽  
Enrique Jimenez-Melero ◽  
Francisco Javier Espinosa-Faller ◽  
Cesia Guarneros-Aguilar ◽  
Felipe Caballero-Briones
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Reduced Graphene Oxide ◽  
Steel Scrap ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Zno Nanocrystals ◽  
Reduced Graphene ◽  
One Step

One-step preparation of ZnO nanoparticle-decorated reduced graphene oxide composites and their application to photocurrent generation

RSC Advances ◽  
2012 ◽  
Vol 2 (4) ◽  
pp. 1318 ◽  
Author(s):  
Jingqi Tian ◽  
Sen Liu ◽  
Haiyan Li ◽  
Lei Wang ◽  
Yingwei Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Zno Nanoparticle ◽  
Photocurrent Generation ◽  
Reduced Graphene ◽  
One Step ◽  
Oxide Composites

Synthesis of Nanocrystalline Reduced Graphene Oxide Quantum Dots

2021 ◽  
pp. 2150036
Author(s):  
Mamta Thakran ◽  
Sumeet Kumar ◽  
Rohit Phogat ◽  
S. K. Ray ◽  
R. Brajpuriya ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Chemical Properties ◽  
Average Crystallite Size ◽  
Vital Role ◽  
Reduced Graphene ◽  
Graphene Oxide Quantum Dots

Reduced graphene oxide quantum dots (rGOQDTs) play a vital role in a variety of biological, optoelectronics, and environmental applications. The quality of 0D nanodots is compromised when they are cut from big 2D nanosheets. As a result, it is necessary to maintain a balance between quality and yield. Here, we developed a two-step hydrothermal process for producing nanocrystalline rGOQDTs by employing graphene oxide (GO) as an initial precursor. UV-Visible spectroscopy was used to explore the optical properties of rGOQDTs. XRD, Raman, and FTIR spectroscopic experiments were performed to better understand the crystalline and chemical properties and composition of rGOQDTs. The nanocrystalline rGOQDTs have an average crystallite size of 1.67[Formula: see text]nm. Using GO as an initial precursor implies a simple two-step approach for producing nanocrystalline rGOQDTs in a low-cost, highly efficient, and scalable manner.

scholarly journals Low-Temperature Catalytic CO Oxidation Over Non-Noble, Efficient Chromia in Reduced Graphene Oxide and Graphene Oxide Nanocomposites

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 105 ◽  
Author(s):  
Asma A. Ali ◽  
Metwally Madkour ◽  
Fakhreia Al Sagheer ◽  
Mohamed I. Zaki ◽  
Ahmed Abdel Nazeer
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Co Oxidation ◽  
Reduced Graphene Oxide ◽  
Low Cost ◽  
Cost Effective ◽  
Efficient Catalyst ◽  
Vacancy Defects ◽  
Reduced Graphene ◽  
Low Temperature Co Oxidation

Herein, bare chromia nanoparticles (Cr2O3 NPs) and chromia supported on reduced graphene oxide (rGO) and graphene oxide (GO) hybrids were synthesized, followed by characterization by means of FESEM, Raman spectroscopy, TGA, XRD, TEM/HRTEM, XPS and N2 sorptiometry. The investigated bare Cr2O3 and the hybrids (Cr2O3/rGO and Cr2O3/GO) were employed as catalysts for low-temperature CO oxidation. Compared with the other catalysts, the results revealed efficient catalytic activity using Cr2O3/GO, which was attributed to its higher surface area together with the mixed oxidation state of chromium (Cr3+ and Cr>3+). These are important oxidation sites that facilitate the electron mobility essential for CO oxidation. Moreover, the presence of carbon vacancy defects and functional groups facilitate the stabilizing of Cr2O3 NPs on its surface, forming a thermally stable hybrid material, which assists the CO oxidation process. The Cr2O3/GO hybrid is a promising low-cost and efficient catalyst for CO oxidation at low temperatures. The higher activity of graphene oxide supported Cr2O3 NPs can provide an efficient and cost-effective solution to a prominent environmental problem.

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