Reinforced silica-carbon nanotube monolithic aerogels synthesised by rapid controlled gelation [PDF]
, 2018 This work introduces a new synthesis procedure for obtaining homogeneous silica hybrid aerogels with carbon nanotube contents up to 2.50 wt.%. The inclusion of nanotubes in the highly porous silica matrix was performed by a two-step sol–gel process ...
Díaz-Fraile, José A. +8 more
core +2 more sources
Nanomaterials, 2019 This work investigates the effect of a magnetic field on the electrochemical performance of nanoporous nickel (np-Ni). We first compare the electrochemical capacitance of np-Ni electrodes, which were prepared using the chemical dealloying strategy under ...
Haixia Zhang, Zhifei Han, Qibo Deng
doaj +1 more source
Impact of the surface roughness on the electrical capacitance [PDF]
, 2006 A new hybrid approach consists to use the advantages of both systems namely the high geometric aspects of the electrodes of the ultracapacitor and the high dielectric strength of polymer materials used in dielectric capacitors.
A. Albina +11 more
core +4 more sources
Synthesis of porous carbon materials and their cycling properties in lithium-ion batteries
上海师范大学学报. 自然科学版, 2023 Based on the development and research status of porous organic polymers and their derived carbon materials in anode materials of lithium-ion batteries, we explored a synthesis method of porous carbon nanospheres with controllable pore size.
TIAN Hanxiao +6 more
doaj +1 more source
Electrochemical Impedance Imaging via the Distribution of Diffusion Times [PDF]
, 2017 We develop a mathematical framework to analyze electrochemical impedance spectra in terms of a distribution of diffusion times (DDT) for a parallel array of random finite-length Warburg (diffusion) or Gerischer (reaction-diffusion) circuit elements.
Bazant, Martin Z., Song, Juhyun
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Preparation of controlled porosity carbon aerogels for energy storage in rechargeable lithium oxygen batteries [PDF]
, 2009 Porous carbon aerogels are prepared by polycondensation of resorcinol and formaldehyde catalyzed by sodium carbonate followed by carbonization of the resultant aerogels in an inert atmosphere. Pore structure of carbon aerogels is adjusted by changing the
EPSRC (Funder) +2 more
core +1 more source
Selective electrolysis of CO2 to CO on ultrathin In2Se3 nanosheets
Electrochemistry Communications, 2019 Electroreduction of CO2 to fuels or valuable chemicals is a promising way to mitigate the greenhouse effect. Herein, ultrathin In2Se3 nanosheets are reported as a robust catalyst for CO2-to-CO conversion with a faradaic efficiency of 89% and a stable ...
Fang Lü +7 more
doaj +1 more source
Tailoring nanoporous structures of Ge anodes for stable potassium-ion batteries
Electrochemistry Communications, 2019 We present here for the first time the electrochemical behavior of germanium anodes in potassium-ion batteries (KIBs). Nanoporous germanium (np-Ge) samples were fabricated by the chemical-dealloying method using Al as the sacrificial metal. Galvanostatic
Qing Yang +3 more
doaj +1 more source
Pore engineering: Structure-capacitance correlations for biomass-derived porous carbon materials
Materials & Design, 2023 As the world’s demand for green energy storage systems continues to increase, electrochemical double-layer supercapacitors based on porous carbon electrodes are receiving more attention than ever.
Bing Yan +8 more
doaj +1 more source
Anomalous Increase in Carbon Capacitance at Pore Sizes Less Than 1 Nanometer [PDF]
, 2006 Carbon supercapacitors, which are energy storage devices that use ion adsorption on the surface of highly porous materials to store charge, have numerous advantages over other power-source technologies, but could realize further gains if their electrodes
Chmiola, John +5 more
core +2 more sources