Results 71 to 80 of about 1,081,138 (206)

Mass-transport resistances of acid and alkaline ionomer layers: A microelectrode study part 1 - Microelectrode development [PDF]

, 2019
The use of microelectrodes to study localized mass-transport phenomena in fuel-cell catalyst layers is an increasingly valuable tool. However, existing microelectrode cells have been used in static, equilibrated environment modes with poorly controlled ...
Danilovic, N, Kushner, DI, Petrovick, JG, Radke, CJ, Tesfaye, M, Weber, AZ   +5 more
core  

Oxygen reduction reaction on stepped platinum surfaces in alkaline media [PDF]

, 2013
The oxygen reduction reaction (ORR) in 0.1 M NaOH on platinum single crystal electrodes has been studied using hanging meniscus rotating disk electrode configuration. Basal planes and stepped surfaces with (111) and (100) terraces have been employed. The
Feliu, Juan M., Herrero, Enrique, Rizo, Rubén   +2 more
core   +2 more sources

Nitrogen containing species as intermediates in the oxidation of ammonia over silica supported molybdena catalysts [PDF]

, 1992
The behaviour of ammonia and oxygen over silica supported molybdena catalysts has been studied by means of thermal analysis techniques, such as thermo-gravimetry and heat-flow calorimetry.
Biermann, J.J.P., Janssen, F.J.J.G., Ross, J.R.H.   +2 more
core   +2 more sources

Electrocatalysis of fuel cell reactions: Investigation of alternate electrolytes [PDF]

Oxygen reduction and transport properties of the electrolyte in the phosphoric acid fuel cell are studied. A theoretical expression for the rotating ring-disk electrode technique; the intermediate reaction rate constants for oxygen reduction on platinum ...
Chang, H. H., Chin, D. T., Hsueh, K. L.
core   +4 more sources

EXPERIMENTAL STUDY OF REACTIVITY AND MORPHOLOGICAL CHANGE OF FE-BASED CHEMICAL LOOPING PARTICLE IN CYCLIC REDUCTION-OXIDATION REACTIONS [PDF]

, 2013
Coal, an abundant and stable energy source, is playing an important role in current and future global energy supplies. Therefore, there is intensive research currently focusing on coal-conversion in a high-efficiency and environmentally-friendly way. The
Chi, Hao
core  

Synthesis and Characterization of Silver-Modified Micro-Diamond as an Electrocatalyst for Oxygen Evolution and Reduction Reactions in Alkaline Medium

International Journal of Electrochemical Science, 2017
Silver-modified micro-diamond composites are synthesized through the chemical reduction of silver nitrate and characterized via X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron ...
Hao Huang, Xilong Ma, Yuanyuan Liu, Jie Hu, Zhefeng Xu, Kazuhiro Matsugi   +5 more
doaj   +1 more source

First principles studies of the size and shape effects on reactivity of the Se modified Ru nanoparticles

, 2012
We present here the results of our density-functional-theory-based calculations of the electronic and geometric structures and energetics of Se and O adsorption on Ru 93- and 105-atom nanoparticles. These studies have been inspired by the fact that Se/Ru
Stolbov, Sergey, Zuluaga, Sebastian
core   +1 more source

Metal-free carbon-nitrogen@carbon-type hybrid electrocatalysts for peroxide-producing oxygen reduction reaction

Carbon Future
Hydrogen peroxide (H2O2) is a widely utilized chemical in environmental cleaning, medical disinfection, and chemical engineering. Compared to the traditional anthraquinone oxidation method, the electrocatalytic oxygen reduction reaction (ORR) has become ...
Bin Wu, Dulce M. Morales, Mingren Liu, Dongjiu Xie, Ping Feng, Yan Lu, Marcel Risch, Martin Oschatz, Tristan Petit   +8 more
doaj   +1 more source

Enhanced oxygen reduction reaction on caffeine-modified platinum single-crystal electrodes

Communications Chemistry
Enhancing the activity of the oxygen reduction reaction (ORR) is crucial for fuel cell development, and hydrophobic species are known to increase the ORR activity.
Nagahiro Hoshi, Masashi Nakamura, Ryuta Kubo, Rui Suzuki   +3 more
doaj   +1 more source

Two-dimensional circular platinum nanodendrites toward efficient oxygen reduction reaction and methanol oxidation reaction

Electrochemistry Communications, 2019
Two-dimensional circular platinum nanodendrites (~13 nm thick, up to 138.8 nm in diameter) were synthesized by chemical reduction of platinum complexes with ascorbic acid in the presence of block copolymer and pre-formed seeds.
Huiyuan Liu, Jiaqi Qin, Siqin Zhao, Zhanming Gao, Qiang Fu, Yujiang Song   +5 more
doaj   +1 more source