scholarly journals Influence of counter ions of ammonium for nitrogen doping and carbon properties in hydrothermal carbonization: characterization and supercapacitor performance

2021 ◽  
Author(s):  
Kenneth G. Latham ◽  
Marveh Forghani ◽  
Wesley M. Dose ◽  
Jessica A. Allen ◽  
Scott W. Donne
Keyword(s):  
Electrochemical Performance ◽  
Physicochemical Properties ◽  
Nitrogen Doping ◽  
Hydrothermal Carbonization ◽  
Counter Ion ◽  
Counter Ions ◽  
Supercapacitor Performance

The ammonium counter ion is shown to influence the morphology, physicochemical properties and electrochemical performance of hydrothermal carbon.

Horse Manure Derived Nitrogen-Doped Porous Carbon via Hydrothermal Carbonization for Promising Applications

2020 ◽  
Vol 990 ◽  
pp. 155-160
Author(s):  
Tanatorn Liamprawat ◽  
Panupong Verasarut ◽  
Napat Kaewtrakulchai ◽  
Gasidit Panomsuwan ◽  
Masayoshi Fuji ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Physicochemical Properties ◽  
Elemental Composition ◽  
Porous Carbon ◽  
Organic Waste ◽  
Hydrothermal Carbonization ◽  
Functional Material ◽  
Nitrogen Doped ◽  
Horse Manure ◽  
Activating Agent

Horse manure, organic waste from livestock, has been used for the production of nitrogen-doped porous carbons (NPC) which could be applied as functional material. The variety of different NH4OH solution concentrations (0.5, 1, 1.5, 2 M) were introduced in hydrothermal treatment as activating agent. Also, the nitrogen precursor was served. Horse manure derived NPC were characterized through varied physicochemical properties including NPC yields, FTIR, SEM, XPS and N2 sorption analyzer to characterize specific properties such as elemental composition on surface, surface functional bonding, physical morphology, and porosity of NPC. In addition, the incorporation of nitrogen dopant into the carbon was intended to further enhance the electrochemical performance.

The electrochemical performance enhancement of carbon anode by hybrid from battery and capacitor through nitrogen doping

Ionics ◽  
2021 ◽  
Author(s):  
Xiaozhong Huang ◽  
Xiangyu Bi ◽  
Tianyu Tang ◽  
Zhonggui Sun ◽  
Xingwang Shi ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Nitrogen Doping ◽  
Performance Enhancement ◽  
Carbon Anode

Phytic Acid Induced Nitrogen Configuration Adjustment of Active Nitrogen-Rich Carbon Nanosheets for High-Performance Potassium-Ion Storage

2021 ◽  
Author(s):  
Ma Liang ◽  
Zhibin Li ◽  
Jinliang Li ◽  
Yao Dai ◽  
Chen Qian ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Phytic Acid ◽  
High Performance ◽  
Nitrogen Doping ◽  
Potassium Ion ◽  
Active Nitrogen ◽  
Carbon Nanosheets ◽  
Ion Storage

As a conventional modification approach, nitrogen doping in carbon can greatly improve the electrochemical performance for potassium (K)-ion storage. However, we realized that the improvement of electrochemical performance by simple...

scholarly journals A general method for boosting the supercapacitor performance of graphitic carbon nitride/graphene hybrids

2017 ◽  
Vol 5 (48) ◽  
pp. 25545-25554 ◽  
Author(s):  
Runjia Lin ◽  
Zhuangnan Li ◽  
Dina Ibrahim Abou El Amaiem ◽  
Bingjie Zhang ◽  
Dan J. L. Brett ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Simple Method ◽  
Supercapacitor Performance ◽  
General Method

A simple method is developed to boost the electrochemical performance of graphitic carbon nitride/graphene composites as supercapacitor electrodes.

Nitrogen doping of mesoporous graphene nanoflakes as a way to enhance their electrochemical performance in ionic liquid-based supercapacitors

2020 ◽  
Vol 30 ◽  
pp. 101464
Author(s):  
Ekaterina A. Arkhipova ◽  
Anton S. Ivanov ◽  
Konstantin I. Maslakov ◽  
Serguei V. Savilov
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Performance ◽  
Nitrogen Doping ◽  
Graphene Nanoflakes

One-pot synthesis of microporous carbons highly enriched in nitrogen and their electrochemical performance

2014 ◽  
Vol 2 (35) ◽  
pp. 14439-14448 ◽  
Author(s):  
A. B. Fuertes ◽  
G. A. Ferrero ◽  
M. Sevilla
Keyword(s):  
Electrochemical Performance ◽  
One Pot ◽  
Microporous Carbons ◽  
One Pot Synthesis ◽  
Supercapacitor Performance

One-pot synthesis of microporous carbons highly enriched in nitrogen (>6 wt%) with enhanced supercapacitor performance.

scholarly journals Capacitance Enhancement by Incorporation of Functionalised Carbon Nanotubes into Poly(3,4-Ethylenedioxythiophene)/Graphene Oxide Composites

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2419
Author(s):  
Anita Cymann ◽  
Mirosław Sawczak ◽  
Jacek Ryl ◽  
Ewa Klugmann-Radziemska ◽  
Monika Wilamowska-Zawłocka
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Polymer Chains ◽  
Electrodeposition Process ◽  
Counter Ions ◽  
Oxide Composites ◽  
Electrochemical Characterisation ◽  
Synthesis Solution

This paper reports on the role of oxidised carbon nanotubes (oxMWCNTs) present in poly-3,4-ethylenedioxytiophene (PEDOT)/graphene oxide (GOx) composite. The final ternary composites (pEDOT/GOx/oxMWCNTs) are synthesised by an electrodeposition process from the suspension-containing monomer, oxidised carbon nanotubes and graphene oxide. Dissociated functional groups on the surface of graphene oxide play a role of counter-ions for the polymer chains. Detailed physicochemical and electrochemical characterisation of the ternary composites is presented in the paper. The results prove that the presence of oxMWCNTs in the ternary composites doubles the capacitance values compared to the binary ones (450 vs. 270 F cm−3 for PEDOT/GOx/oxMWCNTs and PEDOT/GOx, respectively). The amount of carbon nanotubes in the synthesis solution is crucial for physicochemical properties of the composites, their adhesion to the electrode substrate and the electrochemical performance.

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