Improved electrochemical properties of tavorite LiFeSO4F by surface coating with hydrophilic poly-dopamine via a self-polymerization process

RSC Advances ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 6523-6527 ◽  
Author(s):  
Zhendong Guo ◽  
Dong Zhang ◽  
Hailong Qiu ◽  
Yanming Ju ◽  
Tong Zhang ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Elastic Properties ◽  
Surface Coating ◽  
Polymerization Process

PDA coated Li1−xFeSO4F shows improved electrochemical properties due to the highly hydrophilic and elastic properties of poly-dopamine.

scholarly journals Effects of Surface Coating on the Electrochemical Properties of Amorphous CeMg12 Composite

2009 ◽  
Vol 38 (2) ◽  
pp. 198-202 ◽  
Author(s):  
Rugan Chen ◽  
Xinhua Wang ◽  
Hongwei Ge ◽  
Shouquan Li ◽  
Lixin Chen ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Surface Coating

Improving the electrochemical properties of LiNi0.5Co0.2Mn0.3O2 at 4.6 V cutoff potential by surface coating with Li2TiO3 for lithium-ion batteries

2015 ◽  
Vol 17 (47) ◽  
pp. 32033-32043 ◽  
Author(s):  
Jing Wang ◽  
Yangyang Yu ◽  
Bing Li ◽  
Tao Fu ◽  
Dongquan Xie ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Surface Coating ◽  
Lithium Ion ◽  
Coprecipitation Method

The Li2TiO3-coated LiNi0.5Co0.2Mn0.3O2 (LTO@NCM) cathode materials are synthesized via an in situ coprecipitation method to improve the electrochemical performance of NCM.

Enhanced Electrochemical Properties of Lithium‐Rich Cathode Materials by Magnesium Borate Surface Coating

2021 ◽  
Vol 6 (9) ◽  
pp. 2446-2455
Author(s):  
Maohui Bai ◽  
Lina Hu ◽  
Yuhao Liang ◽  
Bo Hong ◽  
Yanqing Lai
Keyword(s):  
Electrochemical Properties ◽  
Cathode Materials ◽  
Surface Coating ◽  
Magnesium Borate

scholarly journals Fe-N/C Catalyst using Various Nitrogen and Carbon Ratio through Chemical Oxidative Polymerization

2021 ◽  
Vol 2117 (1) ◽  
pp. 012031
Author(s):  
VA Setyowati ◽  
W Widiyastuti ◽  
S Nurkhamidah ◽  
N Saidatin ◽  
O Lukdyantoro
Keyword(s):  
Electrochemical Properties ◽  
Oxidative Polymerization ◽  
Precious Metals ◽  
Polymerization Process ◽  
Carbon Surface ◽  
Composition Analysis ◽  
Chemical Oxidative Polymerization ◽  
Energy Materials ◽  
Fe Content ◽  
Iron Precursor

Abstract This study aims to explain the effect of variations in nitrogen and carbon composition of catalysts on electrochemical properties and physical characterization. The usage of non-precious metals supported by nitrogen-carbon is one alternative to reduce the amount of platinum as the innovation of energy materials. Iron is a transition metal that can increase catalytic activity with the addition of a nitrogen source. The polymerization process was carried out by chemical oxidative polymerization for 24 hours in an ice bath using aniline as N source. Optimization of nitrogen coating on the carbon surface is carried out by mixing carbon during polymerization. The mixing of iron precursor and N/C powder was carried out in an ultrasonic bath and continued with pyrolysis at a temperature of 700°C. Regarding Cyclic Voltammetry (CV) test, the Fe-N/C = 2/1 catalyst has the largest area and the highest current density. The presence of Fe2O3 is needed to improve the electrochemical properties compared to Fe3C compounds. The composition analysis showed that the Fe-N/C = 2/1 catalyst had the highest Fe content after pyrolysis. In addition, the Fe-N/C = 2/1 catalyst also had the highest nitrogen content which can form a nitrogen functional group from the pyrolysis process.

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