A cost-effective nanoporous ultrathin film electrode based on nanoporous gold/IrO2 composite for proton exchange membrane water electrolysis

2017 ◽  
Vol 342 ◽  
pp. 947-955 ◽  
Author(s):  
Yachao Zeng ◽  
Xiaoqian Guo ◽  
Zhigang Shao ◽  
Hongmei Yu ◽  
Wei Song ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Ultrathin Film ◽  
Proton Exchange ◽  
Nanoporous Gold ◽  
Film Electrode ◽  
Exchange Membrane

Defects tailoring IrO2@TiN1+x nano-heterojunction for superior water oxidation activity and stability

2021 ◽  
Author(s):  
Sen Wang ◽  
Hong Lv ◽  
Songhu Bi ◽  
Tianqi Li ◽  
Yongwen Sun ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Proton Exchange Membrane ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Proton Exchange ◽  
Pragmatic Approach ◽  
Oxidation Activity ◽  
Anode Catalysts ◽  
Exchange Membrane

Developing cost-effective Ir-based anode catalysts for proton exchange membrane (PEM) water electrolysis has been recognized as an efficient and pragmatic approach, however, many challenges remain to lower Ir content while...

High performance and cost-effective supported IrOx catalyst for proton exchange membrane water electrolysis

2021 ◽  
Vol 385 ◽  
pp. 138391
Author(s):  
Xiangping Min ◽  
Yan Shi ◽  
Zhuoxin Lu ◽  
Lisha Shen ◽  
Taiwo Oladapo Ogundipe ◽  
...  
Keyword(s):  
High Performance ◽  
Proton Exchange Membrane ◽  
Water Electrolysis ◽  
Cost Effective ◽  
Proton Exchange ◽  
Exchange Membrane

scholarly journals Effect of Stratification of Cathode Catalyst Layers on Durability of Proton Exchange Membrane Fuel Cells

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2975
Author(s):  
Zikhona Nondudule ◽  
Jessica Chamier ◽  
Mahabubur Chowdhury
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Electrochemical Impedance ◽  
Catalyst Layer ◽  
Cost Effective ◽  
Proton Exchange ◽  
Membrane Electrode ◽  
Potential Cycling ◽  
Catalyst Layers ◽  
Exchange Membrane

To decrease the cost of fuel cell manufacturing, the amount of platinum (Pt) in the catalyst layer needs to be reduced. In this study, ionomer gradient membrane electrode assemblies (MEAs) were designed to reduce Pt loading without sacrificing performance and lifetime. A two-layer stratification of the cathode was achieved with varying ratios of 28 wt. % ionomer in the inner layer, on the membrane, and 24 wt. % on the outer layer, coated onto the inner layer. To study the MEA performance, the electrochemical surface area (ECSA), polarization curves, and electrochemical impedance spectroscopy (EIS) responses were evaluated under 20, 60, and 100% relative humidity (RH). The stratified MEA Pt loading was reduced by 12% while maintaining commercial equivalent performance. The optimal two-layer design was achieved when the Pt loading ratio between the layers was 1:6 (inner:outer layer). This MEA showed the highest ECSA and performance at 0.65 V with reduced mass transport losses. The integrity of stratified MEAs with lower Pt loading was evaluated with potential cycling and proved more durable than the monolayer MEA equivalent. The higher ionomer loading adjacent to the membrane and the bi-layer interface of the stratified catalyst layer (CL) increased moisture in the cathode CL, decreasing the degradation rate. Using ionomer stratification to decrease the Pt loading in an MEA yielded a better performance compared to the monolayer MEA design. This study, therefore, contributes to the development of more durable, cost-effective MEAs for low-temperature proton exchange membrane fuel cells.

scholarly journals On the Effect of Anion Exchange Ionomer Binders in Bipolar Electrode Membrane Interface Water Electrolysis

2021 ◽  
Author(s):  
Britta Mayerhöfer ◽  
Konrad Ehelebe ◽  
Florian Dominik Speck ◽  
Markus Bierling ◽  
Johannes Bender ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Water Electrolysis ◽  
Membrane Electrode Assembly ◽  
Proton Exchange ◽  
Membrane Electrode ◽  
Bipolar Electrode ◽  
Electrode Interface ◽  
Exchange Membrane ◽  
Electrode Membrane ◽  
Pem Water Electrolyzer

Bipolar membrane|electrode interface water electrolyzers (BPEMWE) were found to outperform a proton exchange membrane (PEM) water electrolyzer reference in a similar membrane electrode assembly (MEA) design based on individual porous...

Modified Sliding Mode-Based Control of a Three-Level Interleaved DC-DC Buck Converter for Proton Exchange Membrane Water Electrolysis

2021 ◽  
Author(s):  
Burin Yodwong ◽  
Damien Guilbert ◽  
Wattana Kaewmanee ◽  
Matheepot Phattanasak ◽  
Melika Hinaje ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Sliding Mode ◽  
Water Electrolysis ◽  
Buck Converter ◽  
Proton Exchange ◽  
Exchange Membrane

Proton Exchange Membrane Water Electrolysis Modeling for System Simulation and Degradation Analysis

2018 ◽  
Vol 90 (10) ◽  
pp. 1437-1442 ◽  
Author(s):  
Sönke Gößling ◽  
Sebastian Stypka ◽  
Matthias Bahr ◽  
Bernd Oberschachtsiek ◽  
Angelika Heinzel
Keyword(s):  
Proton Exchange Membrane ◽  
System Simulation ◽  
Water Electrolysis ◽  
Proton Exchange ◽  
Degradation Analysis ◽  
Exchange Membrane

scholarly journals Nanostructured Ir-supported on Ti4O7 as a cost-effective anode for proton exchange membrane (PEM) electrolyzers

2016 ◽  
Vol 18 (6) ◽  
pp. 4487-4495 ◽  
Author(s):  
Li Wang ◽  
Philipp Lettenmeier ◽  
Ute Golla-Schindler ◽  
Pawel Gazdzicki ◽  
Natalia A. Cañas ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Cost Effective ◽  
Proton Exchange ◽  
Effective Catalyst ◽  
Pem Electrolyzer ◽  
Exchange Membrane

A cost-effective catalyst Ir/Ti4O7 with superior OER activity has been developed, by which the Ir loading in the anode of a PEM electrolyzer can be reduced.

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