Iridium Oxide Nanoparticles and Iridium/Iridium Oxide Nanocomposites: Photochemical Fabrication and Application in Catalytic Reduction of 4-Nitrophenol

2015 ◽  
Vol 7 (30) ◽  
pp. 16738-16749 ◽  
Author(s):  
Di Xu ◽  
Peng Diao ◽  
Tao Jin ◽  
Qingyong Wu ◽  
Xiaofang Liu ◽  
...  
Keyword(s):  
Catalytic Reduction ◽  
Iridium Oxide ◽  
Oxide Nanoparticles

Voltammetry of Diffusing 2 nm Iridium Oxide Nanoparticles

2011 ◽  
Vol 115 (44) ◽  
pp. 21659-21665 ◽  
Author(s):  
Alessa A. Gambardella ◽  
Natalie S. Bjorge ◽  
V. Katherine Alspaugh ◽  
Royce W. Murray
Keyword(s):  
Iridium Oxide ◽  
Oxide Nanoparticles

Methodology for functionalization of water oxidation catalyst IrOx nanoparticles with hydrophobic and multi-functionalized chromophores

2021 ◽  
Author(s):  
Liniquer A. Fontana ◽  
Vitor H. Rigolin ◽  
Carolyne B. Braga ◽  
Catia Ornelas ◽  
Jackson D. Megiatto
Keyword(s):  
Click Chemistry ◽  
Water Oxidation ◽  
Iridium Oxide ◽  
Water Soluble ◽  
Oxidation Catalyst ◽  
Oxide Nanoparticles

A straightforward “click” chemistry methodology for the sensitization of water soluble iridium oxide nanoparticles with hydrophobic and multi-functionalized porphyrin-based chromophores is described.

scholarly journals Gas Sensing with Iridium Oxide Nanoparticle Decorated Carbon Nanotubes

Sensors ◽  
2018 ◽  
Vol 19 (1) ◽  
pp. 113 ◽  
Author(s):  
Juan Casanova-Cháfer ◽  
Eric Navarrete ◽  
Xavier Noirfalise ◽  
Polona Umek ◽  
Carla Bittencourt ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensing ◽  
Metal Oxide Nanoparticles ◽  
Iridium Oxide ◽  
Oxide Nanoparticles ◽  
Step Method ◽  
Experimental Conditions ◽  
Multi Wall Carbon Nanotubes ◽  
Condensation Growth ◽  
Oxide Nanoparticle

The properties of multi-wall carbon nanotubes decorated with iridium oxide nanoparticles (IrOx-MWCNTs) are studied to detect harmful gases such as nitrogen dioxide and ammonia. IrOx nanoparticles were synthetized using a two-step method, based on a hydrolysis and acid condensation growth mechanism. The metal oxide nanoparticles obtained were employed for decorating the sidewalls of carbon nanotubes. Iridium-oxide nanoparticle decorated carbon nanotube material showed higher and more stable responses towards NH3 and NO2 than bare carbon nanotubes under different experimental conditions, establishing the optimal operating temperatures and estimating the limits of detection and quantification. Furthermore, the nanomaterials employed were studied using different morphological and compositional characterization techniques and a gas sensing mechanism is proposed.

Electroless deposition of iridium oxide nanoparticles promoted by condensation of [Ir(OH)6]2− on an anodized Au surface: application to electrocatalysis of the oxygen evolution reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3196-3199 ◽  
Author(s):  
P. Esakki Karthik ◽  
K. Alagar Raja ◽  
S. Senthil Kumar ◽  
K. L. N. Phani ◽  
Yuping Liu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Electroless Deposition ◽  
High Reactivity ◽  
Iridium Oxide ◽  
Oxide Nanoparticles ◽  
Surface Application

High reactivity of anodized gold allows electroless deposition of active IrOx nanoparticles. With its highly stable electrocatalytic activity for OER, the method is the simplest yet developed.

Self-assembly of cuprous oxide nanoparticles supported on reduced graphene oxide and their enhanced performance for catalytic reduction of nitrophenols

RSC Advances ◽  
2015 ◽  
Vol 5 (87) ◽  
pp. 71259-71267 ◽  
Author(s):  
Chengke Wu ◽  
Xiaoyu An ◽  
Shuyan Gao ◽  
Li Su
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cuprous Oxide ◽  
Self Assembly ◽  
Catalytic Reduction ◽  
Catalytic Efficiency ◽  
Oxide Nanoparticles ◽  
Cuprous Oxide Nanoparticles ◽  
Reduced Graphene

Mechanism for the catalytic reduction of nitrophenols; the catalyst can be reused with nearly invariable high catalytic efficiency.

scholarly journals Controlled Deposition of Iridium Oxide Nanoparticles on Graphene

2020 ◽  
Vol 88 (5) ◽  
pp. 392-396
Author(s):  
Shuhei OGAWA ◽  
Masanori HARA ◽  
Seiya SUZUKI ◽  
Prerna JOSHI ◽  
Masamichi YOSHIMURA
Keyword(s):  
Iridium Oxide ◽  
Oxide Nanoparticles ◽  
Controlled Deposition
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