One-Step Ultraviolet Laser-Induced Fluorine-Doped Graphene Achieving Superhydrophobic Properties and Its Application in Deicing

2022 ◽  
Author(s):  
Yun Chen ◽  
Junyu Long ◽  
Bin Xie ◽  
Yicheng Kuang ◽  
Xin Chen ◽  
...  
Keyword(s):  
Ultraviolet Laser ◽  
Doped Graphene ◽  
One Step

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.

The application of inexpensive and synthetic simple electrocatalyst CuFe-MoC@NG in immunosensor

The Analyst ◽  
2021 ◽  
Author(s):  
Lisha Mei ◽  
Wentang Zhao ◽  
Yiju Song ◽  
Li Zhang ◽  
Mengmeng Zhang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Precious Metal ◽  
Doped Graphene ◽  
One Step ◽  
Metal Materials ◽  
First Time

In this study, we used inexpensive and synthetic simple electrocatalysts replacement conventional precious metal materials to reduce hydrogen peroxide (H2O2). We first time developed N-doped graphene-coated CuFe@MoC using one-step calcination...

scholarly journals Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 666 ◽  
Author(s):  
Florent Bourquard ◽  
Yannick Bleu ◽  
Anne-Sophie Loir ◽  
Borja Caja-Munoz ◽  
José Avila ◽  
...  
Keyword(s):  
High Temperature ◽  
Pulsed Laser Deposition ◽  
Graphene Film ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Synthesis Process ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
One Step

Graphene-based materials are widely studied to enable significant improvements in electroanalytical devices requiring new generations of robust, sensitive and low-cost electrodes. In this paper, we present a direct one-step route to synthetize a functional nitrogen-doped graphene film onto a Ni-covered silicon electrode substrate heated at high temperature, by pulsed laser deposition of carbon in the presence of a surrounding nitrogen atmosphere, with no post-deposition transfer of the film. With the ferrocene methanol system, the functionalized electrode exhibits excellent reversibility, close to the theoretical value of 59 mV, and very high sensitivity to hydrogen peroxide oxidation. Our electroanalytical results were correlated with the composition and nanoarchitecture of the N-doped graphene film containing 1.75 at % of nitrogen and identified as a few-layer defected and textured graphene film containing a balanced mixture of graphitic-N and pyrrolic-N chemical functions. The absence of nitrogen dopant in the graphene film considerably degraded some electroanalytical performances. Heat treatment extended beyond the high temperature graphene synthesis did not significantly improve any of the performances. This work contributes to a better understanding of the electrochemical mechanisms of doped graphene-based electrodes obtained by a direct and controlled synthesis process.

scholarly journals Few-layer WS2 nanosheets with oxygen-incorporated defect-sulphur entrapped by a hierarchical N, S co-doped graphene network towards advanced long-term lithium storage performances

RSC Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 7134-7145
Author(s):  
Yan Wang ◽  
Xiaojun Zhao ◽  
Zhi-Hong Liu
Keyword(s):  
Lithium Storage ◽  
Oxygen Incorporation ◽  
Ion Storage ◽  
Doped Graphene ◽  
One Step ◽  
Li Ion ◽  
Ws2 Nanosheets ◽  
Storage Properties ◽  
Co Doped

One-step preparation of few-layer oxygen incorporation in defect-sulphur WS2 nanosheets embedded into the NSG framework exhibits excellent Li-ion storage properties.

scholarly journals Catalyst-free one step synthesis of large area vertically stacked N-doped graphene-boron nitride heterostructures from biomass source

Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4391-4397 ◽  
Author(s):  
Ivan Esteve-Adell ◽  
Jinbao He ◽  
Fernando Ramiro ◽  
Pedro Atienzar ◽  
Ana Primo ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Inert Atmosphere ◽  
Large Area ◽  
Catalyst Free ◽  
Doped Graphene ◽  
One Step ◽  
The One

A procedure for the one-step preparation of films of few-layer N-doped graphene on top of nanometric hexagonal boron nitride sheets based on the pyrolysis at 900 °C under an inert atmosphere is reported.

Boron doped graphene cathode for capacitor via a new one-step method

2019 ◽  
Vol 45 (6) ◽  
pp. 7095-7101 ◽  
Author(s):  
Weiwei Ji ◽  
Yijun Liu ◽  
Zhongqiang Shan ◽  
Xiaodan Zhang ◽  
Fei Ding ◽  
...  
Keyword(s):  
Step Method ◽  
Boron Doped ◽  
Doped Graphene ◽  
One Step
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