scholarly journals Effect of Structure-Controlled Ruthenium Oxide by Nanocasting in Electrocatalytic Oxygen and Chlorine Evolution Reactions in Acidic Conditions

Catalysts ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 549 ◽  
Author(s):  
Jisu Han ◽  
Hyung Jun An ◽  
Tae-Wan Kim ◽  
Kwan-Young Lee ◽  
Hyung Ju Kim ◽  
...  
Keyword(s):  
Porous Structure ◽  
Catalytic Properties ◽  
High Surface ◽  
High Surface Area ◽  
Ruthenium Oxide ◽  
Chlorine Evolution ◽  
Electrocatalytic Properties ◽  
Acidic Conditions ◽  
Ordered Porous ◽  
Effect Of Structure

RuO2 has been used for various applications because of its good catalytic properties. To further improve its electrocatalytic properties, we used a nanocasting technique. By using this technique, we obtained structure-controlled (SC) RuO2 with a high surface area and an ordered porous structure, which created enhanced electrocatalytic properties over commercial RuO2 nanoparticles for both oxygen and chlorine evolution reactions.

scholarly journals Use of natural diatoms for drug delivery

Bionatura ◽  
2020 ◽  
Vol 5 (3) ◽  
pp. 1275-1279
Author(s):  
Dario Castro ◽  
Joselyn Cuasquer ◽  
Eva Chavez
Keyword(s):  
Drug Delivery ◽  
Porous Structure ◽  
Pore Structure ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Processing Cost ◽  
Silica Materials ◽  
Different Characteristics ◽  
Ordered Porous

Diatoms are microalgae organisms that have a cover of silica, with a fascinating ordered porous structure that varies in size, giving them some different characteristics. Because of their different size, shape, and structure, it has incredible properties, letting them be capable of been functionalized with other particles. Therefore, due to the ordered pore structure, the high surface area, biocompatibility, availability, and low processing cost, they present a growing potential for drug delivery when talking about silica materials, natural and synthetic, not to mention that is less expensive and a green alternative.

Lawsone Derived Zn (II) and Fe (III) Metal Organic Frameworks with pH Dependent Emission for Controlled Drug Delivery

2021 ◽  
Author(s):  
Sirajunnisa P ◽  
Liz Hannah George ◽  
Narayanapillai Manoj ◽  
Prathapan S ◽  
G.S. Sailaja
Keyword(s):  
Drug Delivery ◽  
Porous Structure ◽  
High Surface ◽  
Metal Organic Frameworks ◽  
High Surface Area ◽  
Controlled Drug Delivery ◽  
Sensing Applications ◽  
Porous Carriers ◽  
Metal Organic ◽  
Ph Dependent

Fluorescent biocompatible porous carriers have been investigated as suitable probes for drug delivery and sensing applications owing to their intrinsic fluorescence and high surface area originating from their porous structure...

Development of Porous Polypyrrole Electrode for Fuel Cell Applications

2013 ◽  
Vol 545 ◽  
pp. 77-81
Author(s):  
Korakot Sombatmankhong ◽  
Adrian C. Fisher
Keyword(s):  
Methylene Blue ◽  
Fuel Cell ◽  
Solvent Extraction ◽  
Electrical Properties ◽  
Composite Film ◽  
Porous Structure ◽  
High Surface ◽  
High Surface Area ◽  
Novel Material ◽  
Bare Gold

One method of increasing number of reaction sites was by the introduction of a porous structure into the electrodes to provide a high surface area for catalyst deposition. This work focused on the development of a method for the fabrication of a porous polypyrrole electrode; a mixture of two monomers (i.e. pyrrole and methylene blue) was simultaneously electropolymerised and one of which was selectively removed from the composite film by solvent extraction. The porous polypyrrole had a suitably porous structure whilst maintaining excellent electrical properties. The application of this novel material to miniaturized fuel cells was shown to have improved power density of 2-fold and 3-fold higher than bulk polypyrrole and bare gold electrodes respectively.

GROWTH, MORPHOLOGY, INTERFACIAL EFFECTS AND CATALYTIC PROPERTIES OF Au ON TiO2

2001 ◽  
Vol 08 (01n02) ◽  
pp. 73-93 ◽  
Author(s):  
F. COSANDEY ◽  
T. E. MADEY
Keyword(s):  
Surface Science ◽  
Ultrathin Films ◽  
Room Temperature ◽  
Catalytic Properties ◽  
High Surface ◽  
High Surface Area ◽  
Model System ◽  
Growth Morphology ◽  
Oxide Substrate ◽  
Planar Films

We survey recent studies and present new data on the growth, interactions, structure and chemistry of gold deposited on TiO 2(110) surfaces. The noble metal Au on TiO 2(110) is a model system for weak interaction of a metal with an oxide substrate; it is also of interest because Au on TiO 2 has unusually high activity as a catalyst for CO oxidation at room temperature. In this review, we present results on the growth of ultrathin films of Au on TiO 2(110), as well as the morphology, interface formation, epitaxy, structure and electronic properties of Au on TiO 2 single crystal and planar films. The results are compared to studies of Au on high-surface-area TiO 2 catalysts in an attempt to bridge the gap between surface science experiments and the high pressure conditions of catalyst operation.

Fabrication of Gelatin Complexes/Bio-Nanocellulose Nanostructured Composite Mats

2018 ◽  
Vol 936 ◽  
pp. 142-147 ◽  
Author(s):  
Siriporn Taokaew ◽  
Muenduen Phisalaphong
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Porous Structure ◽  
High Surface ◽  
High Surface Area ◽  
Acetobacter Xylinum ◽  
Kidney Cells ◽  
Gelatin Solution ◽  
Green Method ◽  
Nanostructured Composite

Fabrication of gelatin complexes/bio-nanocellulose was achieved using facile and green method to fabricate nanostructured composite mats. The bio-nanocellulose was synthesized usingAcetobacter xylinumbacteria. The bio-nanocellulose pellicle was submerged in gelatin solution and thereafter complexing. Gelatin complex nanospheres were found to adsorb on and inside bio-nanocellulose mats. The nanocomposite mats exhibited optical transparency, high surface area with porous structure, antimicrobial activity againstStaphylococcus aureus,and non-cytotoxicity to Vero monkey kidney cells.

Hierarchical flowerlike magnesium oxide hollow spheres with extremely high surface area for adsorption and catalysis

2016 ◽  
Vol 4 (2) ◽  
pp. 400-406 ◽  
Author(s):  
Shuliang Yang ◽  
Peipei Huang ◽  
Li Peng ◽  
Changyan Cao ◽  
Yanan Zhu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Surface Area ◽  
Magnesium Oxide ◽  
Heavy Metal Ions ◽  
Catalytic Properties ◽  
Condensation Reaction ◽  
High Surface ◽  
Hollow Spheres ◽  
High Surface Area ◽  
Adsorption Properties

3D hierarchical flowerlike MgO hollow spheres with extremely high surface area showed excellent adsorption properties for heavy metal ions and catalytic properties for the Claisen–Schmidt condensation reaction.

Mesoporous BN and BCN nanocages with high surface area and spherical morphology

2014 ◽  
Vol 16 (43) ◽  
pp. 23554-23557 ◽  
Author(s):  
Ulka Suryavanshi ◽  
Veerappan V. Balasubramanian ◽  
Kripal S. Lakhi ◽  
Gurudas P. Mane ◽  
Katsuhiko Ariga ◽  
...  
Keyword(s):  
Low Temperature ◽  
Porous Structure ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Spherical Morphology

A low temperature synthesis of novel mesoporous BN and BCNs with cage type porous structure, high surface area, and spherical morphology using carbon nanocages has been reported.

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