Results 11 to 20 of about 179,487 (256)

Porous materials

open access: yesJournal of the Japan Society for Technology of Plasticity, 2016
In the past few decades, the increasingly routine use of advanced structural probes for studying the structure and dynamics of the solid state has led to some dramatic developments in the field of porous solids. These materials are fundamental in a diverse range of applications, such as shape-selective catalysts for energy-efficient organic ...
COOPER ANDY, LIU MING
  +10 more sources

Lightweight, Low-Cost Co2SiO4@diatomite Core-Shell Composite Material for High-Efficiency Microwave Absorption

open access: yesMolecules, 2022
The porous and biomimetic cobalt silicate@diatomite (Co2SiO4@diatomite) was successfully synthesized by a two-step method, including the hydrothermal method and calcination to improve the electromagnetic wave absorption property.
Yifan Zhang   +12 more
doaj   +1 more source

Graphene-Based Cathode Materials for Lithium-Ion Capacitors: A Review

open access: yesNanomaterials, 2021
Lithium-ion capacitors (LICs) are attracting increasing attention because of their potential to bridge the electrochemical performance gap between batteries and supercapacitors.
Dong Sui   +7 more
doaj   +1 more source

Cu@Pd/C with Controllable Pd Dispersion as a Highly Efficient Catalyst for Hydrogen Evolution from Ammonia Borane

open access: yesNanomaterials, 2020
A series of Cu@Pd/C with different Pd contents was prepared using the galvanic reduction method to disperse Pd on the surface of Cu nanoparticles on Cu/C.
Yanliang Yang   +5 more
doaj   +1 more source

Modeling of porous material fracture [PDF]

open access: yesИнженерно-строительный журнал, 2017
Wide use of various porous materials in construction engineering applications requires development of up to date methods of non-destructive characterization and optimization of such materials.
A.N. Levandovskiy   +2 more
doaj   +1 more source

Enhanced Electromagnetic Wave Absorption Properties of Ultrathin MnO2 Nanosheet-Decorated Spherical Flower-Shaped Carbonyl Iron Powder

open access: yesMolecules, 2021
In this work, spherical flower-shaped composite carbonyl iron powder@MnO2 (CIP@MnO2) with CIP as the core and ultrathin MnO2 nanosheets as the shell was successfully prepared by a simple redox reaction to improve oxidation resistance and electromagnetic ...
Zhengwei Qu   +12 more
doaj   +1 more source

Numerical study of the effect of porous media on heat transfer in a horizontal annular tube

open access: yesAl-Qadisiyah Journal for Engineering Science, 2023
In the current study, energy analyses were performed to enhance the characteristics and forced convection performance in the horizontal annular in the case of the presence of porous material and without porous material.
Muna Sabah Kassim   +2 more
doaj   +1 more source

Synthesis of porous carbon materials and their cycling properties in lithium-ion batteries

open access: yes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

Effective properties of a porous inhomogeneously polarized by direction piezoceramic material with full metalized pore boundaries: Finite element analysis [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
This paper concerns the homogenization problems for porous piezocomposites with infinitely thin metalized pore surfaces. To determine the effective properties, we used the effective moduli method and the finite element approaches, realized in the ANSYS ...
Andrey Nasedkin, Mohamed Elsayed Nassar
doaj   +1 more source

Efficacy of hierarchical pore structure in enhancing the tribological and recyclable smart lubrication performance of porous polyimide

open access: yesFriction, 2022
Herein, a porous oil-containing material with hierarchical pore structure was successfully prepared through microtexturing large pores on the surface of porous polyimide (PPI) with single-level small pores.
Hongwei Ruan   +5 more
doaj   +1 more source

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