Insights into the Ni/C-Based Thin-Film Catalyst Layer Design for Urea Oxidation Reaction in a Three-Electrode System

2021 ◽  
Author(s):  
Nitul Kakati ◽  
Guangfu Li ◽  
Po-Ya Abel Chuang
Keyword(s):  
Thin Film ◽  
Oxidation Reaction ◽  
Catalyst Layer ◽  
Electrode System ◽  
Thin Film Catalyst

A new hydrophobic thin film catalyst layer for PEMFC

2010 ◽  
Vol 181 (8-10) ◽  
pp. 453-458 ◽  
Author(s):  
Wei Song ◽  
Hongmei Yu ◽  
Lixing Hao ◽  
Zhili Miao ◽  
Baolian Yi ◽  
...  
Keyword(s):  
Thin Film ◽  
Catalyst Layer ◽  
Thin Film Catalyst

Growth control of single and multi-walled carbon nanotubes by thin film catalyst

2002 ◽  
Vol 366 (1-2) ◽  
pp. 109-114 ◽  
Author(s):  
Young Joon Yoon ◽  
Jun Cheol Bae ◽  
Hong Koo Baik ◽  
SeongJin Cho ◽  
Se-Jong Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Growth Control ◽  
Thin Film Catalyst ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Magnetron Sputtered Iridium-Ruthenium Thin-Film Catalyst for Oxygen Evolution Reaction

2021 ◽  
Vol MA2021-01 (38) ◽  
pp. 1214-1214
Author(s):  
Tomas Hrbek ◽  
Peter Kus ◽  
Tereza Košutová ◽  
Kateřina Veltruská ◽  
Thu Ngan Dinhová ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Thin Film Catalyst

Aged Co-Mo alloy thin film catalyst for hydrogen evolution reaction in acidic solution

2021 ◽  
pp. 2151018
Author(s):  
Cihan Kuru
Keyword(s):  
Thin Film ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Acidic Solution ◽  
Alloy Film ◽  
Surface Oxide Layer ◽  
Alloy Thin Film ◽  
Acidic Solutions ◽  
Thin Film Catalyst

In this study, aged Co–Mo (3:10) alloy film has been demonstrated as an efficient and durable catalyst for hydrogen evolution reaction (HER) in acidic solution. The Co–Mo alloy films with varying Co/Mo atomic ratios have been deposited by magnetron sputtering. The catalytic activity of Mo film is outperformed by the Co–Mo alloys, among which the Co–Mo (3:10) alloy exhibits the highest HER activity with an overpotential of 310 mV at 10 mA cm[Formula: see text] current density, exchange current density of 1.74 × 10[Formula: see text] A cm[Formula: see text] and a Tafel slope of 61 mV dec[Formula: see text]. Combined with the good stability provided by the surface oxide layer, the aged Co–Mo (3:10) alloy is a promising catalyst for HER in acidic solutions.

scholarly journals Direct In Situ Growth of Centimeter‐Scale Multi‐Heterojunction MoS 2 /WS 2 /WSe 2 Thin‐Film Catalyst for Photo‐Electrochemical Hydrogen Evolution

2019 ◽  
Vol 6 (13) ◽  
pp. 1900301 ◽  
Author(s):  
Sehun Seo ◽  
Seungkyu Kim ◽  
Hojoong Choi ◽  
Jongmin Lee ◽  
Hongji Yoon ◽  
...  
Keyword(s):  
Thin Film ◽  
Hydrogen Evolution ◽  
In Situ Growth ◽  
Thin Film Catalyst

Study on the Nanostructure of Nafion Ultra-Thin Film at Pt/C Catalyst Layer in PEMFC: Molecular Dynamics Simulation Approaches

2020 ◽  
Vol MA2020-02 (33) ◽  
pp. 2114-2114
Author(s):  
Haisu Kang ◽  
Sung Hyun Kwon ◽  
Seung Geol Lee
Keyword(s):  
Thin Film ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Catalyst Layer ◽  
Dynamics Simulation ◽  
Ultra Thin Film

A Two-Phase, Transient Model for the Cathode of a PEMFC Using Thin Film-Agglomerate Approach

2006 ◽  
Author(s):  
Hsin-Sen Chu ◽  
Shih-Ming Chang
Keyword(s):  
Thin Film ◽  
Steady State ◽  
Layer Thickness ◽  
Catalyst Layer ◽  
Critical Value ◽  
Gas Diffusion ◽  
Water Proton ◽  
Gaseous Species ◽  
Two Phase ◽  
Effect Of Water

This study presents a transient, one-dimensional, and two phase model of the proton exchange membrane fuel cell cathode. A thin film-agglomerate approach is applied to the catalyst layer. The model includes the transport of gaseous species, liquid water, proton, and electrochemical kinetics. The effect of water flooding both in the gas diffusion layer and catalyst layer in the cathode are investigated. The effects of agglomerate radius and the catalyst layer thickness on the overall cell performance are also investigated. The results show that the time for fuel cells to reach the steady state is in the order of 10 sec due to the effect of water accumulated both in the porous layer and the membrane. However the time for proton transport is in the order of 0.1 sec. In addition, before the ionic potential reaches the steady state, it would get a critical value. The critical value would depend on the operating cell voltage. There seems to be an optimum in the catalyst layer thickness and agglomerate radius.

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