نتایج جستجو برای: electrocatalytic oxidation

تعداد نتایج: 120900  

ژورنال: مواد پرانرژی 2012
سبحان منش, باقر, نجفی, مصطفی,

  Electrochemical behavior of a Prussian blue -modified carbon paste electrode and their applications to electrocatalytic activity for hydrazine oxidation. The electrochemical behavior and stability of the modified electrodes as well as electro-oxidation of hydrazine at the electrode were investigated using cyclic voltammetry method. At the modified electrode, the oxidation of hydrazine occurs ...

2017
Zhiping Xiong Shumin Li Hui Xu Ke Zhang Bo Yan Luísa Margarida Martins

This paper reported the fabrication of ternary metallic PtPdBi hollow nanocatalyst through a facile, one-pot, wet-chemical method by adopting sodium borohydride and polyvinylpyrrolidone as reducing agent and surfactant directing agent, respectively. The hollow structure offers novel morphology and large surface areas, which are conducive to enhancing the electrocatalytic activity. The electroca...

Journal: :Physical chemistry chemical physics : PCCP 2015
Jin-Yeon Lee Da-Hee Kwak Young-Woo Lee Seul Lee Kyung-Won Park

The electrocatalytic properties for electro-oxidation reactions of shape-controlled Pt-based catalysts have been improved by alloying with 2nd elements. In this study, we demonstrate cubic PtPd alloy nanoparticles synthesized using a thermal decomposition method. The cubic PtPd nanoparticles exhibit a homogeneous distribution of alloy nanostructures in the presence of Pt and Pd metallic phases....

Journal: :journal of nanostructures 0
mohammad mazloum-ardakani department of chemistry, faculty of science, yazd university, yazd, 89195-741, iran fatemeh farbod department of chemistry, faculty of science, yazd university, yazd, 89195-741, iran laleh hosseinzadeh department of chemistry, faculty of science, yazd university, yazd, 89195-741, iran

the combination of graphene (gr) and nickel oxide nanoparticles (nio nps) yields nanostructured electrochemical sensor formed a novel kind of structurally uniform and electrocatalytic activity material. in cyclic voltammetry (cv) studies, in the presence of ep, nio/gr composite modified electrode shows a significantly higher current response for ep oxidation. based on differential pulse voltamm...

Journal: :Chemical communications 2009
Xinyi Zhang Wei Lu Jiyan Da Huanting Wang Dongyuan Zhao Paul A Webley

Porous Pt nanowire arrays show enhanced electrocatalytic activities for ethanol oxidation in direct alcohol fuel cells.

Journal: :iranian chemical communication 2015
ghasem karim-nezhad ali pashazadeh

in this research, we reported a novel modified carbon ceramic electrode (cce) using ni/al layered double hydroxide as modifier was fabricated by sol-gel technique. the ni/al layered double hydroxide modified sol gel derived carbon ceramic (ni/al ldh-sgd-cc) electrode was used for electrocatalytic oxidation of acetaldehyde. the oxidation of acetaldehyde happens at the potential where ni (iii) sp...

F. Bakhtiarzadeh M.R. Allahgholi Ghasri N. Tafreshi R. M. A. Tehrani, S. Ab Ghani

For the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (Ni) modified composite graphite (CG) electrode (hcp-nano Ni/CG) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 M KOH). The hcp-nano Ni/CG electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare CG. The elec...

F. Bakhtiarzadeh M.R. Allahgholi Ghasri N. Tafreshi R. M. A. Tehrani, S. Ab Ghani

For the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (Ni) modified composite graphite (CG) electrode (hcp-nano Ni/CG) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 M KOH). The hcp-nano Ni/CG electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare CG. The elec...

Journal: :Chemical communications 2011
Kwi Nam Han Cheng Ai Li Minh-Phuong Ngoc Bui Xuan-Hung Pham Gi Hun Seong

We controlled the morphologies of zinc oxide (ZnO) nanostructures on single-walled carbon nanotube electrodes by an electrochemical deposition method and investigated the dependence of the electrocatalytic characteristics toward hydrazine on the different morphologies. ZnO nanorods provided high electrocatalytic activity with unique electrochemical behaviours, associated with the H(+) ion gener...

Journal: :Journal of the American Chemical Society 2013
Ravikumar Iyyamperumal Liang Zhang Graeme Henkelman Richard M Crooks

We report electrocatalytic oxidation of formic acid using monometallic and bimetallic dendrimer-encapsulated nanoparticles (DENs). The results indicate that the Au147@Pt DENs exhibit better electrocatalytic activity and low CO formation. Theoretical calculations attribute the observed activity to the deformation of nanoparticle structure, slow dehydration of formic acid, and weak binding of CO ...

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