Synthesis of Hierarchically Porous Silica and Metal Oxide Beads Using Emulsion-Templated Polymer Scaffolds

2004 ◽  
Vol 16 (22) ◽  
pp. 4245-4256 ◽  
Author(s):  
H. Zhang ◽  
G. C. Hardy ◽  
Y. Z. Khimyak ◽  
M. J. Rosseinsky ◽  
A. I. Cooper
Keyword(s):  
Metal Oxide ◽  
Porous Silica ◽  
Polymer Scaffolds ◽  
Hierarchically Porous

Formation and Applications of Hierarchically Porous Carbon, Metals and Metal Oxides Formed by Nanocasting

2012 ◽  
Vol 1389 ◽  
Author(s):  
Franchessa M. Sayler ◽  
Amy J. Grano ◽  
William Scogin ◽  
Pasha Sanders ◽  
Jan-Henrik Smått ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Porous Carbon ◽  
Porous Silica ◽  
Ionic Conductors ◽  
Hierarchically Porous ◽  
Surface Areas ◽  
Wide Range ◽  
Hierarchically Porous Materials ◽  
Silica Template

ABSTRACTHierarchically porous materials are of interest in a wide range of applications. If the materials are electronic or ionic conductors such materials are of interest as electrodes for use in fuel cells, flow batteries, electrocatalysis, and pseudo/supercapacitors. We have demonstrated the synthesis of hierarchically porous carbon, metal and metal oxide monoliths. Hierarchically porous silica with porosity at three length scales: 0.5-30 micrometer, 200-500 nm, and 3-8 nm, is used as a template to form these materials. The porosity of the silica template is produced by spinodal decomposition (0.5-30 micrometer), particle agglomeration (200-500 nm) and addition of surfactant or block copolymer (3-8 nm). Nanocasting: replication of all or part of the structure via one of a number of chemical replication techniques has been used to produce the carbon, metal oxide and metal replicas. The final surface areas of the materials can be as high as 1200 m2/g for carbon replicas, and >300 m2/g for metals and metal oxides. The use of the nanocasting technique allows for formation of materials that are compositionally or spatially heterogeneous.We report here results on the synthesis and characterization of hierarchically porous monoliths of carbon and, nickel and the use of some of these monoliths in catalysis and electrochemical capacitors.

Hierarchically porous silica supported ceria and platinum nanoparticles for catalytic combustion of toluene

2021 ◽  
Vol 867 ◽  
pp. 159030
Author(s):  
Yu Hao ◽  
Shaohua Chen ◽  
Luming Wu ◽  
Rui Chen ◽  
Pingchuan Sun ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Catalytic Combustion ◽  
Porous Silica ◽  
Hierarchically Porous

Hierarchically porous silica as an efficient catalyst carrier for high performance vis-light assisted Fenton degradation

2013 ◽  
Vol 176 ◽  
pp. 178-185 ◽  
Author(s):  
Zehui Miao ◽  
Shengyang Tao ◽  
Yuchao Wang ◽  
Yongxian Yu ◽  
Changgong Meng ◽  
...  
Keyword(s):  
High Performance ◽  
Porous Silica ◽  
Efficient Catalyst ◽  
Hierarchically Porous ◽  
Catalyst Carrier

Nanoparticle prepared mechanically stable hierarchically porous silica granulates and their application as oxygen carrier supports for chemical looping combustion

2015 ◽  
Vol 3 (22) ◽  
pp. 11863-11873 ◽  
Author(s):  
Yujing Liu ◽  
Peter Kirchesch ◽  
Thomas Graule ◽  
Antje Liersch ◽  
Frank Clemens
Keyword(s):  
Mechanical Stability ◽  
Oxygen Carrier ◽  
Porous Silica ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Hierarchically Porous ◽  
Templating Synthesis ◽  
Hierarchical Nanomaterials

Viamodifying the templating synthesis of hierarchical nanomaterials, a strategy was proposed to generate bi-modal porous granulates with mechanical stability.

Multiple gold nanorods@hierarchically porous silica nanospheres for efficient multi-drug delivery and photothermal therapy

2017 ◽  
Vol 5 (8) ◽  
pp. 1642-1649 ◽  
Author(s):  
Nan Li ◽  
Dechao Niu ◽  
Xiaobo Jia ◽  
Jianping He ◽  
Yu Jiang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Gold Nanorods ◽  
Photothermal Therapy ◽  
Biomedical Applications ◽  
Porous Silica ◽  
Photothermal Effect ◽  
Silica Nanospheres ◽  
Hierarchically Porous ◽  
Silica Nanocomposites ◽  
Hierarchically Porous Structure

Gold-based silica nanocomposites with hierarchically porous structure, as well as excellent photothermal effect, have shown great potentials in biomedical applications.

Hierarchically porous MgAl mixed metal oxide synthesized by sudden decomposition of MgAl layered double hydroxide gel

2013 ◽  
Vol 37 (7) ◽  
pp. 2128 ◽  
Author(s):  
Qi Liu ◽  
Jing Yu ◽  
Xiaofei Zhang ◽  
Jun Wang ◽  
Zhanshuang Li ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Layered Double Hydroxide ◽  
Mixed Metal Oxide ◽  
Hierarchically Porous ◽  
Mixed Metal ◽  
Double Hydroxide
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