One-Step Electrochemical Synthesis of PtNi Nanoparticle-Graphene Nanocomposites for Nonenzymatic Amperometric Glucose Detection

2011 ◽  
Vol 3 (8) ◽  
pp. 3049-3057 ◽  
Author(s):  
Hongcai Gao ◽  
Fei Xiao ◽  
Chi Bun Ching ◽  
Hongwei Duan
Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 202
Author(s):  
Yexin Dai ◽  
Jie Ding ◽  
Jingyu Li ◽  
Yang Li ◽  
Yanping Zong ◽  
...  

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.


Author(s):  
Alfonso Ferretti ◽  
Sourab Sinha ◽  
Luca Sagresti ◽  
Esteban Araya-Hermosilla ◽  
Mirko Prato ◽  
...  

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...


RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22836-22847
Author(s):  
P. Nagaraju ◽  
M. Arivanandhan ◽  
A. Alsalme ◽  
A. Alghamdi ◽  
R. Jayavel

Nanoparticles of α-molybdenum oxide (α-MoO3) are directly grown on graphene sheets using a surfactant-free facile one step ultrafast in situ microwave irradiation method.


RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20234-20237 ◽  
Author(s):  
Zuwei Song ◽  
Hui Dai ◽  
Jiantao Tong

Bi3.84W0.16O6.24 nanoparticles were successfully prepared by a facile electrochemical route at room temperature in just 10 minutes.


Luminescence ◽  
2017 ◽  
Vol 32 (6) ◽  
pp. 1031-1038 ◽  
Author(s):  
Meijuan Liang ◽  
Yi Ren ◽  
Haijuan Zhang ◽  
Yunxia Ma ◽  
Xiaoying Niu ◽  
...  

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