Results 21 to 30 of about 5,095 (238)

Electrochemical characteristics of cobaltosic oxide in organic electrolyte according to bode plots: double‐layer capacitance and pseudocapacitance [PDF]

, 2019
Pseudocapacitive behavior is usually observed in transition-metal oxide anodes for lithium-ion batteries, such as Co O . It is necessary to develop electrochemical technologies for clarifying the properties of the pseudocapacitance in the electrode ...
Darren J. Martin, Xu, Yinsheng, Bund, Andreas, Nanjundan, Ashok Kumar, Ashok Kumar Nanjundan, Yamauchi, Yusuke, Andreas Bund, Yusuke Yamauchi, Huiling Peng, Peng, Huiling, Yang, Zhigao, Wang, Shengping, Martin, Darren, Nanjundan, Ashok, Shengping Wang, Yinsheng Xu, Zhigao Yang, Martin, Darren J.   +17 more
core   +1 more source

Surface Charge Storage Properties of Selected Graphene Samples in pH-neutral Aqueous Solutions of Alkali Metal Chlorides - Particularities and Universalities

International Journal of Electrochemical Science, 2016
In order to provide deeper understanding of surface charge storage mechanism in graphene materials, we analyzed the relative contribution of double layer capacitance and pseudocapacitance in overall capacitance of three different graphene-based materials
Sanjin Gutić, Ana S. Dobrota, Nemanja Gavrilov, Miloš Baljozović, Igor A. Pašti, Slavko V. Mentus   +5 more
doaj   +1 more source

Quantifying Capacitive‐Like and Battery‐Like Charge Storage Contributions Using Single‐Nanoparticle Electro‐optical Imaging

ChemElectroChem, 2020
Pseudocapacitors promise to combine the high‐rate capability of electrochemical capacitors with the high energy‐density of batteries. A major challenge in the field is to demonstrate that pseudocapacitors behave electrochemically like a capacitor and the
R. Colby Evans, Zach Nilsson, Brenden Balch, Dr. Li Wang, Dr. James R. Neilson, Dr. Christopher R. Weinberger, Dr. Justin B. Sambur   +6 more
doaj   +1 more source

Understanding the MXene Pseudocapacitance

The Journal of Physical Chemistry Letters, 2018
MXenes have attracted great attention as next-generation capacitive energy-storage materials, but the mechanisms underlying their pseudocapacitive behavior are not well understood. Here we provide a theoretical description of the surface redox process of Ti3C2T x (T = O, OH), a prototypical MXene, in 1 M H2SO4 electrolyte, based on joint density ...
Cheng Zhan, Michael Naguib, Maria Lukatskaya, Paul R. C. Kent, Yury Gogotsi, De-en Jiang   +5 more
openaire   +3 more sources

Investigating the Cycling Stability of Fe₂WO₆ Pseudocapacitive Electrode Materials

Nanomaterials, 2021
The stability upon cycling of Fe2WO6 used as a negative electrode material for electrochemical capacitors was investigated. The material was synthesized using low temperature conditions for the first time (220 °C).
Julio César Espinosa-Angeles, Nicolas Goubard-Bretesché, Eric Quarez, Christophe Payen, Moulay-Tahar Sougrati, Olivier Crosnier, Thierry Brousse   +6 more
doaj   +1 more source

Pseudocapacitance of zeolite-templated carbon in organic electrolytes [PDF]

, 2015
Carbon and graphene-based materials often show some amount of pseudocapacitance due to their oxygen-functional groups. However, such pseudocapacitance is generally negligible in organic electrolytes and has not attracted much attention.
Ishii, Takafumi, Morallon, Emilia, Ruiz-Rosas, Ramiro, Nueangnoraj, Khanin, Cazorla-Amorós, Diego, Ito, Masashi, Yamamoto, Norihisa, Nishihara, Hirotomo, Itoi, Hiroyuki, Kyotani, Takashi, Berenguer Betrián, Raúl   +10 more
core   +1 more source

Enhancement of Electrocatalytic and Pseudocapacitive Properties as a Function of Structural Order in A₂Fe₂O₅ (A = Sr, Ba)

Molecules, 2023
Significant enhancements of electrocatalytic activities for both half-reactions of water-electrolysis, i.e., oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), as well as pseudocapacitive charge-storage properties are demonstrated ...
Surendra B. Karki, Farshid Ramezanipour
doaj   +1 more source

Development of a Technique and Investigation of Capacitance Characteristics of Electrode Materials for Supercapacitors Based on Nitrogen-Doped Carbon Nanotubes

Eurasian Chemico-Technological Journal, 2017
Carbon nanotubes are widely employed as catalyst supports and electrode materials. In our earlier studies, capacitance characteristics of carbon nanotubes (CNTs) and nitrogen-doped carbon nanotubes (N-CNTs) were measured.
G. Yu. Simenyuk, A. V. Puzynin, O. Yu. Podyacheva, A. V. Salnikov, Yu. A. Zakharov, Z. R. Ismagilov   +5 more
doaj   +1 more source

Investigation of the Supercapacitive Behavior of Electroless Ni-B Coatings

Metals, 2023
Amorphous electroless Ni-B coatings were deposited on steel substrates with different surface morphologies and B contents (6.5–8.64 wt.%) that could be changed by altering the temperature and the composition of the baths.
Mate Czagany, Szabolcs Hompoth, Márk Windisch, Peter Baumli   +3 more
doaj   +1 more source

Voltage dependence of carbon-based supercapacitors for pseudocapacitance quantification [PDF]

, 2013
In order to understand the participation of electrical double layer and pseudocapacitance to the overall behavior of supercapacitors, a new approach to the analysis of the electrochemical data is proposed.
Ruiz Ruiz, Vanesa, Roldán Luna, Silvia, I. Villar, Villar Masetto, Isabel, R. Santamaría, Santamaría Ramírez, Ricardo, V. Ruiz, Blanco Rodríguez, Clara, S. Roldán, C. Blanco   +9 more
core   +1 more source