Results 241 to 250 of about 129,634 (313)
Some of the next articles are maybe not open access.

Hierarchical Porous Graphene Carbon-Based Supercapacitors

Chemistry of Materials, 2015
A high-rate graphene-based supercapacitor is very attractive for the practical application of graphene. Here, we first synthesized the films of the hybrids of biomass cellulose and large literal sheet sizes and weakly defective graphene flakes reaching high thermal conductivity and then converted them into hierarchical porous graphene carbon materials ...
Jianlin Huang   +5 more
openaire   +1 more source

HIERARCHICAL POROUS MATERIALS: CAPILLARIES IN NANOPOROUS CARBON

Functional Materials Letters, 2009
A hierarchical carbon material containing nanopores (micropores and mesopores) and micrometric sized capillaries (macropores) is produced using a combination of hard and soft templates. The hard template is a polypropylene (PP) cloth which decomposes during pyrolysis leaving a macroporous structure.
MARIANO M. BRUNO   +4 more
openaire   +1 more source

Preparation of hierarchically porous carbon nanosheets by carbonizing resol resin for supercapacitors

Journal of Porous Materials, 2021
Hierarchically porous carbon nanosheets were synthesized by using homogeneous mixture of soluble phenolic resin and KOH activator, which was carbonized and activated through one step. Structural characterization revealed that the as-prepared carbon materials consisted of abundant macropores, mesopores and micropores from the carbonization of the resin ...
Tao Yan, Kang Wang, Xitao Wang
openaire   +1 more source

Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor

Energy & Environmental Science, 2020
Hierarchical porous carbon nanofibers can efficiently eliminate kinetics and capacity mismatches between the anode and cathode of the potassium-ion hybrid capacitor.
Xiang Hu   +7 more
semanticscholar   +1 more source

Green synthesis of nitrogen-doped hierarchical porous carbon nanosheets derived from polyvinyl chloride towards high-performance supercapacitor

Journal of Power Sources, 2021
Green and cost-efficient preparation of two-dimensional (2D) hierarchically porous carbon nanosheets for supercapacitors draw extensive attention due to their unique microstructure and excellent electrochemical performance. In the present work, polyvinyl
Zhe Sheng   +7 more
semanticscholar   +1 more source

Preparation of hierarchical porous carbon with high capacitance

World Journal of Engineering, 2018
Purpose The purpose of this study is to design carbon electrode materials for high performance electric double-layer capacitors (EDLCs) with pores that are large enough and have suitable pore size distribution for the electrolyte to access completely to improve EDLCs’ electrochemical performance.
Yuming Guan   +4 more
openaire   +1 more source

Pt supported on hierarchical porous carbon for furfural hydrogenation

Journal of Industrial and Engineering Chemistry, 2021
Abstract Hierarchical porous carbon (HPC) was prepared using colloidal silica of different sizes as a template, and used as a support for Pt nanoparticles. The Pt dispersion varied with the pore size and structure of the HPC supports. However, the measured Pt dispersions (70%–76%) suggested that this characteristic was not affected by the pore size ...
Mi Yeon Byun, Man Sig Lee
openaire   +1 more source

Hierarchical porous carbon microrods derived from albizia flowers for high performance supercapacitors

Carbon, 2019
In this work, we report the successful synthesis of hierarchical porous carbon microrods via a one-step pyrolysis and activation treatment at different temperatures. The optimized porous carbon microrods have many advantages, including high specific area
Fuming Wu   +7 more
semanticscholar   +1 more source

Biomass-derived three-dimensional hierarchical porous carbon network for symmetric supercapacitors with ultra-high energy density in ionic liquid electrolyte

, 2021
Due to the interconnected network and high porosity, melamine foam has been selected as the template to obtain hierarchical porous carbon. In this paper, porous carbon with hierarchical porous structure, high pore volume and high specific surface area is
Yan Wu   +7 more
semanticscholar   +1 more source

Biomass-derived mesopore-dominant hierarchical porous carbon enabling ultra-efficient lithium ion storage

Carbon, 2020
Amorphous hierarchical porous carbon with capacity and energy storage kinetics superior to graphite anodes is considered to be an ideal alternative to conventional lithium-ion battery anodes.
Daping Qiu   +6 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy