نتایج جستجو برای: electrocatalytic activity

تعداد نتایج: 1137434  

Journal: :Chemical communications 2009
Scott G Mitchell Sumit Khanra Haralampos N Miras Thomas Boyd De-Liang Long Leroy Cronin

Two topologically equivalent triangular POM aggregates based upon the Keggin () and Dawson () cluster species, with distinctive double {W-O-M} intra-molecular linkages involving Mn(III) and Co(III) ions are presented; both these compounds demonstrate electrocatalytic activity.

Journal: :Chemical communications 2010
Heather R Luckarift Susan R Sizemore Jared Roy Carolin Lau Gautum Gupta Plamen Atanassov Glenn R Johnson

Populations of metabolically active bacteria were associated at an electrode surface via vapor-deposition of silica to facilitate in situ characterization of bacterial physiology and bio-electrocatalytic activity in microbial fuel cells.

Journal: :Chemical communications 2010
Deli Wang Shanfu Lu San Ping Jiang

A novel Pd/HPW-PDDA-MWCNT with high electrocatalytic activity for the oxygen reduction reaction of fuel cells was synthesized by immobilizing water soluble HPW with positively charged polyelectrolyte PDDA on MWCNTs.

Journal: :Chemical communications 2010
Young-Woo Lee A-Ra Ko Sang-Beom Han Hyun-Su Kim Do-Young Kim Si-Jin Kim Kyung-Won Park

We report cuboctahedral Pd nanoparticles on WC synthesized by the polyol process using ethylene glycol with NO(3)(-) and Fe(3+)/Fe(2+) ions. The cuboctahedral Pd/WC shows much improved electrocatalytic activity for methanol electrooxidation in alkaline solution.

Journal: :Chemical communications 2012
Chuangang Hu Yang Zhao Huhu Cheng Yue Hu Gaoquan Shi Liming Dai Liangti Qu

A newly-designed network of ternary Pd(2)/PtFe nanowires on a three-dimensional graphene framework has been fabricated via a dual solvothermal approach, which presents superior electrocatalytic activity towards the oxidation of formic acid.

2009
Zhihong Sun Faliang Cheng Xiangcheng Dai

Highly ordered Pd nanowire arrays (NWAs) prepared by electrodeposition method using the fresh prepared anodic aluminum oxide (AAO) as the template have been characterized by X-ray diffraction pattern (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), scanning electron microscopy (SEM), and electrochemical measurements. SEM results revealed that the brush-shap...

2015
Jin Soo Kang Min-Ah Park Jae-Yup Kim Sun Ha Park Dong Young Chung Seung-Ho Yu Jin Kim Jongwoo Park Jung-Woo Choi Kyung Jae Lee Juwon Jeong Min Jae Ko Kwang-Soon Ahn Yung-Eun Sung

Nickel nitride electrodes were prepared by reactive sputtering of nickel under a N2 atmosphere at room temperature for application in mesoscopic dye- or quantum dot- sensitized solar cells. This facile and reliable method led to the formation of a Ni2N film with a cauliflower-like nanostructure and tetrahedral crystal lattice. The prepared nickel nitride electrodes exhibited an excellent chemic...

2017
Hairong Xue Tao Wang Hao Gong Xiaoli Fan Li Song Wei Xia Yaya Feng Jianping He Adam F. Lee Jean-Philippe Dacquin

A low cost, durable, and efficient electrocatalyst for oxygen reduction reactions (ORR) is essential for high-performance fuel cells. Here, we fabricated Co3O4 nanoparticles (NPs) anchored on N-doped mesoporous carbon nanofibers (Co3O4/NMCF) by electrospinning combined with the simple heat treatment. Within this composite, carbon nanofibers possess a mesoporous structure, contributed to obtain ...

Journal: :physical chemistry and electrochemistry 0
elham eslami department of chemistry, kazerun branch, islamic azad university, kazerun, iran fatemeh farjami bdepartment of chemistry, science and research branch, islamic azad university, fars, iran

a carbon nanocomposite electrode has been designed by incorporation of montmorillonite nanoclayinto the carbon ionic liquid electrode for the electrochemical determination of amitriptiline . the surface ofthe proposed electrode was characterized by scanning electron microscopy. the presence of ionic liquid asa binder is believed to be responsible for the electrocatalytic activity of the propose...

Journal: :Molecules 2011
Tine Brülle Wenbo Ju Philipp Niedermayr Andrej Denisenko Odysseas Paschos Oliver Schneider Ulrich Stimming

Gold nanoparticles were prepared by electrochemical deposition on highly oriented pyrolytic graphite (HOPG) and boron-doped, epitaxial 100-oriented diamond layers. Using a potentiostatic double pulse technique, the average particle size was varied in the range from 5 nm to 30 nm in the case of HOPG as a support and between < 1 nm and 15 nm on diamond surfaces, while keeping the particle density...

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