Enhanced Activity for Methanol Oxidation of Platinum Particles Supported on Iridium Oxide Modified Boron-Doped Diamond Powder

2017 ◽  
Vol 4 (8) ◽  
pp. 1908-1915 ◽  
Author(s):  
Loredana Preda ◽  
Takeshi Kondo ◽  
Tanta Spataru ◽  
Mariana Marin ◽  
Mihai Radu ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Diamond Powder ◽  
Iridium Oxide ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
Enhanced Activity ◽  
Platinum Particles

scholarly journals Platinum particles deposited on synthetic boron-doped diamond surfaces. Application to methanol oxidation

2003 ◽  
Vol 48 (25-26) ◽  
pp. 3891-3897 ◽  
Author(s):  
F Montilla ◽  
E Morallón ◽  
I Duo ◽  
Ch Comninellis ◽  
J.L Vázquez
Keyword(s):  
Methanol Oxidation ◽  
Boron Doped Diamond ◽  
Diamond Surfaces ◽  
Boron Doped ◽  
Platinum Particles

Boron doped diamond electrode modified with iridium oxide for amperometic detection of ultra trace amounts of arsenic(iii)

The Analyst ◽  
2004 ◽  
Vol 129 (1) ◽  
pp. 9 ◽  
Author(s):  
Abdollah Salimi ◽  
Michael E. Hyde ◽  
Craig E. Banks ◽  
Richard G. Compton
Keyword(s):  
Iridium Oxide ◽  
Boron Doped Diamond ◽  
Diamond Electrode ◽  
Boron Doped ◽  
Boron Doped Diamond Electrode ◽  
Ultra Trace

scholarly journals Boron-doped diamond powder (BDDP)-based polymer composites for dental treatment using flexible pinpoint electrolysis unit

2016 ◽  
Vol 68 ◽  
pp. 49-53 ◽  
Author(s):  
Tsuyoshi Ochiai ◽  
Shoko Tago ◽  
Mio Hayashi ◽  
Kazuo Hirota ◽  
Takeshi Kondo ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Dental Treatment ◽  
Diamond Powder ◽  
Boron Doped Diamond ◽  
Boron Doped

scholarly journals Sequential Electrodeposition of Platinum-Ruthenium at Boron-Doped Diamond Electrodes for Methanol Oxidation

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Ileana González-González ◽  
Camille Lorenzo-Medrano ◽  
Carlos R. Cabrera
Keyword(s):  
Auger Electron Spectroscopy ◽  
Methanol Oxidation ◽  
Photoelectron Spectroscopy ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Diamond Surface ◽  
Oh Radicals ◽  
Boron Doped Diamond ◽  
X Ray ◽  
Boron Doped

Sequential electrodeposition of Pt and Ru on boron-doped diamond (BDD) films, in 0.5 M H2SO4 by cyclic voltammetry, has been prepared. The potential cycling, in the aqueous solutions of the respective metals, was between 0.00 and 1.00 V versus Ag/AgCl. The catalyst composites, Pt and PtRu, deposited on BDD film substrates, were tested for methanol oxidation. The modified diamond surfaces were also characterized by scanning electron microscopy-X-ray fluorescence-energy dispersive spectroscopy, X-ray photoelectron spectroscopy, and Auger electron spectroscopy. The scanning Auger electron spectroscopy mapping showed the ruthenium signal only in areas where platinum was electrodeposited. Ruthenium does not deposit on the oxidized diamond surface of the boron-doped diamond. Particles with 5–10% of ruthenium with respect to platinum exhibited better performance for methanol oxidation in terms of methanol oxidation peak current and chronoamperometric current stability. The electrogenerated •OH radicals on BDD may interact with Pt surface, participating in the methanol oxidation as shown in oxidation current and the shift in the peak position. The conductive diamond surface is a good candidate as the support for the platinum electrocatalyst, because it ensures catalytic activity, which compares with the used carbon, and higher stability under severe anodic and cathodic conditions.

Boron-Doped Diamond Powder as a Durable Support for Platinum-Based Cathode Catalysts in Polymer Electrolyte Fuel Cells

2018 ◽  
Vol 165 (6) ◽  
pp. F3072-F3077 ◽  
Author(s):  
Takeshi Kondo ◽  
Mihoko Kikuchi ◽  
Hidetake Masuda ◽  
Fumiya Katsumata ◽  
Tatsuo Aikawa ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Diamond Powder ◽  
Polymer Electrolyte Fuel Cells ◽  
Boron Doped Diamond ◽  
Cathode Catalysts ◽  
Boron Doped

Electrode Characteristics of High Pressure Synthetic High Boron Doped Diamond

2006 ◽  
Vol 315-316 ◽  
pp. 507-510 ◽  
Author(s):  
Jian Bing Zang ◽  
Yan Hui Wang ◽  
W. Tang ◽  
H. Huang
Keyword(s):  
High Pressure ◽  
Carbon Sources ◽  
High Hardness ◽  
Diamond Powder ◽  
Grinding Wheel ◽  
Potential Range ◽  
Boron Doped Diamond ◽  
Boron Doped ◽  
High Boron ◽  
Electrode Characteristics

B-doped diamond is an excellent grinding material owing to its high hardness, oxidation resistance and chemical inertness as well as low resistance. The recent developments of Boron doped conductive diamond has further increased the scale of diamond applications including the manufacture of electrically conductive grinding wheel or the use as an electrode in EDM. The unique electrochemical properties also attract the researchers’ attention on the applications of electrode, sensor and detectors etc. This paper presents a viable technology that high boron doped diamond is synthesized under high pressure and high temperature using B-doped GICs as carbon sources. The synthetic diamond grains with electrically resistivity of 2cm are sufficiently conductive for electrochemistry measurement. Cyclic voltammotry was performed to evaluate the electrode characteristics of diamond powder. The results shows that B-doped diamond powder electrode is electrochemically stable in the supporting electrolytes such as 0.1M KCl, 0.5M Na2SO4 and 0.1M H2SO4 over a wide potential range. The level of background current is very low. The electrode reaction is quasi-reversible in 0.5M Na2SO4 containing the ferricyanide-ferrocyanide redox couple.

Preparation and Characterization of Boron-Doped Diamond Powder

2005 ◽  
Vol 152 (9) ◽  
pp. B369 ◽  
Author(s):  
Anne E. Fischer ◽  
Greg M. Swain
Keyword(s):  
Diamond Powder ◽  
Boron Doped Diamond ◽  
Boron Doped
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