Hydrogen storage capability of porous silicon powder fabricated from Al–Si alloy

2021 ◽  
pp. 125405
Author(s):  
Honghao Li ◽  
Ilizel Retita ◽  
Junjie Huang ◽  
S.L.I. Chan
Keyword(s):  
Porous Silicon ◽  
Hydrogen Storage ◽  
Silicon Powder

Hydrogen Storage Capability of Porous Silicon Powder Fabricated from Al-Si Alloy

2021 ◽  
Author(s):  
Ilizel Retita ◽  
Honghao Li ◽  
Junjie Huang ◽  
Sammy Chan
Keyword(s):  
Porous Silicon ◽  
Hydrogen Storage ◽  
Silicon Powder

Theoretical modelling of porous silicon decorated with metal atoms for hydrogen storage

2020 ◽  
Vol 45 (49) ◽  
pp. 26321-26333
Author(s):  
Israel González ◽  
Francisco De Santiago ◽  
Lucía G. Arellano ◽  
Álvaro Miranda ◽  
Alejandro Trejo ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Hydrogen Storage ◽  
Theoretical Modelling ◽  
Metal Atoms

A new approach to produce porous silicon powder by chemical attack in phase vapor

2013 ◽  
Vol 61 (3) ◽  
pp. 30103 ◽  
Author(s):  
Marouan Khalifa ◽  
Malek Atyaoui ◽  
Messaoud Hajji ◽  
Hatem Ezzaouia
Keyword(s):  
Porous Silicon ◽  
Silicon Powder ◽  
New Approach ◽  
Chemical Attack

Synthesis and Characteristics of Porous Silicon Carbide Ceramic Reinforced by Silicon Carbide Whiskers

2014 ◽  
Vol 602-603 ◽  
pp. 397-402 ◽  
Author(s):  
Xiao Xue Liu ◽  
Hong Sheng Zhao ◽  
Hui Yang ◽  
Kai Hong Zhang ◽  
Zi Qiang Li
Keyword(s):  
Silicon Carbide ◽  
Thermal Expansion ◽  
Porous Silicon ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Bending Strength ◽  
Silicon Powder ◽  
Fluid Filtration ◽  
Porous Silicon Carbide ◽  
Silicon Carbide Ceramics

Silicon powder and phenolic resin were used as raw materials to produce porous silicon carbide (SiC) ceramics, with SiC whiskers (SiCw) as reinforcement additionally. Starting with the preparation of core-shell structure precursor powder through coat-mix method, and then by carrying out molding, carbonization and sintering processes, SiCw/SiC ceramic examples were produced. The phase composite, fracture surface morphology, pore size and porosity, bending strength and thermal expansion coefficient of the final product were measured. Results show that the addition of SiCw apparently improved the intensive property of the products and the changing pattern were quantitatively analyzed; while little influence was observed on some other properties such as phase composition and thermal expansion coefficient. It means that SiCw can strengthen porous silicon carbide ceramics without weakening their thermal properties, which is particularly important because of its application in the field of high temperature fluid filtration. Incorporated SiCw is supposed to work in accordance with some toughening mechanism such as load transferring and matrix prestressing. Microstructure, pore evaluation and weight loss rate during carbonation and sintering were also noted to describe the procedure better.

Photoconductivity and photovoltaic properties of polyaniline immobilized onto metallurgical porous silicon powder

2012 ◽  
Vol 62 (9) ◽  
pp. 1283-1292
Author(s):  
Isam M Arafa ◽  
Hassan M El-Ghanem ◽  
Ahmad Lafi Ahmad
Keyword(s):  
Porous Silicon ◽  
Silicon Powder ◽  
Photovoltaic Properties

Electrochemical hydrogen storage in Pd-coated porous silicon/graphene oxide

2016 ◽  
Vol 41 (28) ◽  
pp. 12175-12182 ◽  
Author(s):  
Yasaman Honarpazhouh ◽  
Fatemeh Razi Astaraei ◽  
Hamid Reza Naderi ◽  
Omid Tavakoli
Keyword(s):  
Graphene Oxide ◽  
Porous Silicon ◽  
Hydrogen Storage ◽  
Electrochemical Hydrogen Storage

Microwave Dielectric Property of Porous Silicon Nitride Ceramics

2007 ◽  
Vol 336-338 ◽  
pp. 307-309 ◽  
Author(s):  
Jun Qi Li ◽  
Fa Luo ◽  
Dong Mei Zhu ◽  
Wan Cheng Zhou
Keyword(s):  
Dielectric Constant ◽  
Silicon Nitride ◽  
Dielectric Property ◽  
Porous Silicon ◽  
Microwave Dielectric Property ◽  
Volume Fraction ◽  
Silicon Powder ◽  
Dense Matrix ◽  
Microwave Dielectric ◽  
Nitride Ceramics

This paper presents the microwave dielectric property of porous silicon nitride ceramics at a frequency of 9360 MHz, which were fabricated by the nitridation of silicon powder. The porous ceramics with different volume fraction of porosity from 18.6% to 56.2% were produced by adding different amount of the pore-forming agent into the initial silicon powder. Microstructural analysis revealed a dense matrix containing large pores and cavities with needle-shaped and flaky β-Si3N4 grains distributing in it. The results showed that the dielectric constant of the ceramics reduces with the porosity increases. With the addition of α-Si3N4 powder in the raw silicon powder, the nitridation rate is raised, and the dielectric constant and the dielectric loss of the ceramics decrease notablely.

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