Surface Controlled Electrochemical Sensing of Chlorpyrifos in Pinellia Ternate Based on a One Step Synthesis of Palladium-Reduced Graphene Nanocomposites

2016 ◽  
Vol 164 (2) ◽  
pp. B48-B53 ◽  
Author(s):  
Yu Zhang ◽  
Zhi Xia ◽  
Qianzhu Li ◽  
Guofeng Gui ◽  
Gaoyu Zhao ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Graphene Nanocomposites ◽  
Reduced Graphene ◽  
One Step

One-step Functionalization of Mildly and Strongly Reduced Graphene Oxide with Maleimide: An Experimental and Theoretical Investigation of the Diels-Alder [4+2] Cycloaddition Reaction

2021 ◽  
Author(s):  
Alfonso Ferretti ◽  
Sourab Sinha ◽  
Luca Sagresti ◽  
Esteban Araya-Hermosilla ◽  
Mirko Prato ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Large Scale ◽  
Cycloaddition Reaction ◽  
Diels Alder ◽  
Reduced Form ◽  
Graphene Nanocomposites ◽  
Exfoliated Graphene ◽  
Reduced Graphene ◽  
One Step

For large-scale graphene applications, such as the production of polymer-graphene nanocomposites, exfoliated graphene oxide (GO) and its reduced form (rGO) are presently considered very suitable starting material, showing enhanced chemical...

One-step synthesis of Polyvinylpyrrolidone-reduced graphene oxide-Pd nanoparticles for electrochemical sensing

2016 ◽  
Vol 51 (13) ◽  
pp. 6497-6508 ◽  
Author(s):  
Yanyan Zhang ◽  
Cong Zhang ◽  
Weizhen Wang ◽  
Xin Du ◽  
Wenhao Dong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pd Nanoparticles ◽  
Electrochemical Sensing ◽  
Reduced Graphene ◽  
One Step

scholarly journals Detection of Imatinib Based on Electrochemical Sensor Constructed Using Biosynthesized Graphene-Silver Nanocomposite

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhen Wu ◽  
Jingjing Liu ◽  
Minmin Liang ◽  
Haoyue Zheng ◽  
Chuansheng Zhu ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Limit Of Detection ◽  
Electrochemical Sensing ◽  
Optimal Conditions ◽  
Leaf Extracts ◽  
Monitoring Technique ◽  
Reduced Graphene ◽  
One Step ◽  
Silver Nanocomposite ◽  
The One

The establishment of a monitoring technique for imatinib is necessary in clinical and environmental toxicology. Leaf extracts of Lycoris longituba were used as reducing agent for the one-step synthesis of reduced graphene oxide-Ag nanocomposites. This nanocomposite was characterized by TEM, FTIR, XRD, and other instruments. Then, the graphene/Ag nanocomposite was used as a modifier to be cemented on the surface of the glassy carbon electrode. This electrode exhibited excellent electrochemical sensing performance. Under the optimal conditions, the proposed electrode could detect imatinib at 10 nM−0.28 mM with a low limit of detection. This electrochemical sensor also has excellent anti-interference performance and reproducibility.

scholarly journals N, S and Transition-Metal Co-Doped Graphene Nanocomposites as High-Performance Catalyst for Glucose Oxidation in a Direct Glucose Alkaline Fuel Cell

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 202
Author(s):  
Yexin Dai ◽  
Jie Ding ◽  
Jingyu Li ◽  
Yang Li ◽  
Yanping Zong ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Active Sites ◽  
High Performance ◽  
Glucose Oxidation ◽  
Alkaline Fuel Cell ◽  
Blank Group ◽  
Graphene Nanocomposites ◽  
Doped Graphene ◽  
One Step ◽  
Hydrothermal Approach

In this work, reduced graphene oxide (rGO) nanocomposites doped with nitrogen (N), sulfur (S) and transitional metal (Ni, Co, Fe) were synthesized by using a simple one-step in-situ hydrothermal approach. Electrochemical characterization showed that rGO-NS-Ni was the most prominent catalyst for glucose oxidation. The current density of the direct glucose alkaline fuel cell (DGAFC) with rGO-NS-Ni as the anode catalyst reached 148.0 mA/cm2, which was 40.82% higher than the blank group. The DGAFC exhibited a maximum power density of 48 W/m2, which was more than 2.08 folds than that of blank group. The catalyst was further characterized by SEM, XPS and Raman. It was speculated that the boosted performance was due to the synergistic effect of N, S-doped rGO and the metallic redox couples, (Ni2+/Ni3+, Co2+/Co3+ and Fe2+/Fe3+), which created more active sites and accelerated electron transfer. This research can provide insights for the development of environmental benign catalysts and promote the application of the DGAFCs.

High-rate and long-life of Li-ion batteries using reduced graphene oxide/Co3O4 as anode materials

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24320-24330 ◽  
Author(s):  
Junkai He ◽  
Ying Liu ◽  
Yongtao Meng ◽  
Xiangcheng Sun ◽  
Sourav Biswas ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Capacity ◽  
High Rate ◽  
Microwave Method ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Reduced Graphene ◽  
One Step ◽  
Li Ion ◽  
Long Life

A new one-step microwave method was designed for synthesis of rGO/Co3O4, and the Li-ion battery showed high capacity and long life.

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