scholarly journals Transition Metal Carbides for New Cathode Material of Polymer Electrolyte Fuel Cell

2004 ◽  
Vol 2004-21 (1) ◽  
pp. 213-221 ◽  
Author(s):  
K. Lee
Keyword(s):  
Fuel Cell ◽  
Transition Metal ◽  
Cathode Material ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell ◽  
Metal Carbides ◽  
Transition Metal Carbides

Degradation of High Temperature Polymer Electrolyte Fuel Cell Cathode Material as Affected by Polybenzimidazole

2015 ◽  
Vol 162 (6) ◽  
pp. F587-F595 ◽  
Author(s):  
Mikhail S. Kondratenko ◽  
Marat O. Gallyamov ◽  
Oksana A. Tyutyunnik ◽  
Irina V. Kubrakova ◽  
Alexander V. Chertovich ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Cathode Material ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Cathode ◽  
Cell Cathode

Tuning Transition Metal Carbides Activity by Surface Metal Alloying: Case Study on CO2 Capture and Activation

2018 ◽  
Author(s):  
Marti Lopez ◽  
Luke Broderick ◽  
John J Carey ◽  
Francesc Vines ◽  
Michael Nolan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Co2 Capture ◽  
Density Functional ◽  
Deep Understanding ◽  
Metal Carbides ◽  
Transition Metal Carbides ◽  
Adsorption Sites ◽  
Surface Metal ◽  
A Minor

<div>CO2 is one of the main actors in the greenhouse effect and its removal from the atmosphere is becoming an urgent need. Thus, CO2 capture and storage (CCS) and CO2 capture and usage (CCU) technologies are intensively investigated as technologies to decrease the concentration</div><div>of atmospheric CO2. Both CCS and CCU require appropriate materials to adsorb/release and adsorb/activate CO2, respectively. Recently, it has been theoretically and experimentally shown that transition metal carbides (TMC) are able to capture, store, and activate CO2. To further improve the adsorption capacity of these materials, a deep understanding of the atomic level processes involved is essential. In the present work, we theoretically investigate the possible effects of surface metal doping of these TMCs by taking TiC as a textbook case and Cr, Hf, Mo, Nb, Ta, V, W, and Zr as dopants. Using periodic slab models with large</div><div>supercells and state-of-the-art density functional theory based calculations we show that CO2 adsorption is enhanced by doping with metals down a group but worsened along the d series. Adsorption sites, dispersion and coverage appear to play a minor, secondary constant effect. The dopant-induced adsorption enhancement is highly biased by the charge rearrangement at the surface. In all cases, CO2 activation is found but doping can shift the desorption temperature by up to 135 K.</div>

Development of small polymer electrolyte fuel cell stacks

1996 ◽  
Author(s):  
V A Paganin ◽  
E A Ticianelli ◽  
E R Gonzalez
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cell

scholarly journals Predicting the Effect of Dopants on CO2 Adsorption in Transition Metal Carbides: Case Study on TiC (001)

2020 ◽  
Vol 124 (29) ◽  
pp. 15969-15976 ◽  
Author(s):  
Martí López ◽  
Francesc Viñes ◽  
Michael Nolan ◽  
Francesc Illas
Keyword(s):  
Transition Metal ◽  
Co2 Adsorption ◽  
Metal Carbides ◽  
Transition Metal Carbides

scholarly journals H2-CO2 polymer electrolyte fuel cell that generates power while evolving CH4 at the Pt0.8Ru0.2/C cathode

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shofu Matsuda ◽  
Yuuki Niitsuma ◽  
Yuta Yoshida ◽  
Minoru Umeda
Keyword(s):  
Fuel Cell ◽  
Electric Power ◽  
Polymer Electrolyte ◽  
Carbon Capture ◽  
Polymer Electrolyte Fuel Cell ◽  
Cell Temperature ◽  
Faradaic Efficiency ◽  
Carbon Capture And Utilization ◽  
Electrode Potentials ◽  
A Cell

AbstractGenerating electric power using CO2 as a reactant is challenging because the electroreduction of CO2 usually requires a large overpotential. Herein, we report the design and development of a polymer electrolyte fuel cell driven by feeding H2 and CO2 to the anode (Pt/C) and cathode (Pt0.8Ru0.2/C), respectively, based on their theoretical electrode potentials. Pt–Ru/C is a promising electrocatalysts for CO2 reduction at a low overpotential; consequently, CH4 is continuously produced through CO2 reduction with an enhanced faradaic efficiency (18.2%) and without an overpotential (at 0.20 V vs. RHE) was achieved when dilute CO2 is fed at a cell temperature of 40 °C. Significantly, the cell generated electric power (0.14 mW cm−2) while simultaneously yielding CH4 at 86.3 μmol g−1 h−1. These results show that a H2-CO2 fuel cell is a promising technology for promoting the carbon capture and utilization (CCU) strategy.

scholarly journals Effect of Pt and Ionomer Distribution on Polymer Electrolyte Fuel Cell Performance and Durability

2021 ◽  
Vol 4 (3) ◽  
pp. 2307-2317
Author(s):  
Aki Kobayashi ◽  
Takahiro Fujii ◽  
Chie Harada ◽  
Eiichi Yasumoto ◽  
Kenyu Takeda ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Cell Performance ◽  
Polymer Electrolyte Fuel Cell ◽  
Fuel Cell Performance
Sign in / Sign up

Export Citation Format

Share Document