scholarly journals Electrochemically dealloyed nanoporous Fe40Ni20Co20P15C5 metallic glass for efficient and stable electrocatalytic hydrogen and oxygen generation

RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7369-7380
Author(s):  
K. S. Aneeshkumar ◽  
Jo-chi Tseng ◽  
Xiaodi Liu ◽  
Jinsen Tian ◽  
Dongfeng Diao ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Anion Exchange ◽  
Large Scale ◽  
Commercial Production ◽  
Anion Exchange Membrane ◽  
Hydrogen Fuel ◽  
Oxygen Generation ◽  
Efficient Energy ◽  
Production Of Hydrogen ◽  
Exchange Membrane

The anion exchange membrane (AEM) in fuel cells requires new, stable, and improved electrocatalysts for large scale commercial production of hydrogen fuel for efficient energy conversion.

High-performance anion exchange membrane alkaline seawater electrolysis

2021 ◽  
Author(s):  
Yoo Sei Park ◽  
Jooyoung Lee ◽  
Myeong-Je Jang ◽  
Juchan Yang ◽  
Jae Hoon Jeong ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Hydrogen Energy ◽  
Highly Active ◽  
Production Of Hydrogen ◽  
Exchange Membrane ◽  
Seawater Electrolysis

Seawater electrolysis is a promising technology for the production of hydrogen energy and seawater desalination. To produce hydrogen energy through seawater electrolysis, highly active electrocatalysts for the oxygen evolution reaction...

scholarly journals Highly Active Nickel-Based Catalyst for Hydrogen Evolution in Anion Exchange Membrane Electrolysis

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 614 ◽  
Author(s):  
Alaa Faid ◽  
Alejandro Oyarce Barnett ◽  
Frode Seland ◽  
Svein Sunde
Keyword(s):  
Hydrogen Evolution ◽  
Anion Exchange ◽  
Environmentally Friendly ◽  
Cell Voltage ◽  
Anion Exchange Membrane ◽  
Total Cell ◽  
Hydrogen Fuel ◽  
Highly Active ◽  
And Performance ◽  
Exchange Membrane

Anion exchange membrane (AEM) electrolysis is hampered by two main issues: stability and performance. Focusing on the latter, this work demonstrates a highly active NiMo cathode for hydrogen evolution in AEM electrolysis. We demonstrate an electrolyzer performance of 1 A cm−2 at 1.9 V (total cell voltage) with a NiMo loading of 5 mg cm−2 and an iridium black anode in 1 M KOH at 50 °C, that may be compared to 1.8 V for a similar cell with Pt at the cathode. The catalysts developed here will be significant in supporting the pursuit of cheap and environmentally friendly hydrogen fuel.

scholarly journals Highly Active Nickel-Based Catalyst for Hydrogen Evolution in Anion Exchange Membrane Electrolysis

2018 ◽  
Author(s):  
Alaa Y. Faid ◽  
Alejandro Oyarce Barnett ◽  
Frode Seland ◽  
Svein Sunde
Keyword(s):  
Hydrogen Evolution ◽  
Anion Exchange ◽  
Environmentally Friendly ◽  
Cell Voltage ◽  
Anion Exchange Membrane ◽  
Total Cell ◽  
Hydrogen Fuel ◽  
Highly Active ◽  
And Performance ◽  
Exchange Membrane

Anion exchange membrane (AEM) electrolysis is hampered by two main issues: stability and performance. Focusing on the latter, this work demonstrates a highly active NiMo cathode for hydrogen evolution in AEM electrolysis. We demonstrate an electrolyzer performance of 1 A cm−2 at 1.9 V (total cell voltage) with a NiMo loading of 5 mg cm−2 and an iridium black anode in 1 M KOH at 50 °C, that may be compared to 1.8 V for a similar cell with Pt at the cathode. The catalysts developed here will be significant in supporting the pursuit of cheap and environmentally friendly hydrogen fuel.

Graphene-nanoplatelets-supported NiFe-MOF: high-efficiency and ultra-stable oxygen electrodes for sustained alkaline anion exchange membrane water electrolysis

2020 ◽  
Vol 13 (10) ◽  
pp. 3447-3458 ◽  
Author(s):  
Pandiarajan Thangavel ◽  
Miran Ha ◽  
Shanmugasundaram Kumaraguru ◽  
Abhishek Meena ◽  
Aditya Narayan Singh ◽  
...  
Keyword(s):  
Anion Exchange ◽  
High Stability ◽  
Large Scale ◽  
High Efficiency ◽  
Water Electrolysis ◽  
Anion Exchange Membrane ◽  
Effective Strategy ◽  
Oxygen Electrodes ◽  
Stable Oxygen ◽  
Exchange Membrane

A simple and effective strategy for fabricating high-stability alkaline anion exchange membrane water electrolyzers for large-scale hydrogen production.

scholarly journals An Investigation of a (Vinylbenzyl) Trimethylammonium and N-Vinylimidazole-Substituted Poly (Vinylidene Fluoride-Co-Hexafluoropropylene) Copolymer as an Anion-Exchange Membrane in a Lignin-Oxidising Electrolyser

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 425
Author(s):  
Patrick J. McHugh ◽  
Arindam K. Das ◽  
Alexander G. Wallace ◽  
Vaibhav Kulshrestha ◽  
Vinod K. Shahi ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Vinylidene Fluoride ◽  
Low Voltage ◽  
Anion Exchange Membrane ◽  
Cell Potential ◽  
Polymer Backbone ◽  
Capital Costs ◽  
Production Of Hydrogen ◽  
Ion Conducting ◽  
Exchange Membrane

Electrolysis is seen as a promising route for the production of hydrogen from water, as part of a move to a wider “hydrogen economy”. The electro-oxidation of renewable feedstocks offers an alternative anode couple to the (high-overpotential) electrochemical oxygen evolution reaction for developing low-voltage electrolysers. Meanwhile, the exploration of new membrane materials is also important in order to try and reduce the capital costs of electrolysers. In this work, we synthesise and characterise a previously unreported anion-exchange membrane consisting of a fluorinated polymer backbone grafted with imidazole and trimethylammonium units as the ion-conducting moieties. We then investigate the use of this membrane in a lignin-oxidising electrolyser. The new membrane performs comparably to a commercially-available anion-exchange membrane (Fumapem) for this purpose over short timescales (delivering current densities of 4.4 mA cm−2 for lignin oxidation at a cell potential of 1.2 V at 70 °C during linear sweep voltammetry), but membrane durability was found to be a significant issue over extended testing durations. This work therefore suggests that membranes of the sort described herein might be usefully employed for lignin electrolysis applications if their robustness can be improved.

scholarly journals Highly cost-effective platinum-free anion exchange membrane electrolysis for large scale energy storage and hydrogen production

RSC Advances ◽  
2020 ◽  
Vol 10 (61) ◽  
pp. 37429-37438
Author(s):  
Immanuel Vincent ◽  
Eun-Chong Lee ◽  
Hyung-Man Kim
Keyword(s):  
Anion Exchange ◽  
Large Scale ◽  
Proton Exchange Membrane ◽  
Cost Effective ◽  
Platinum Group Metal ◽  
Anion Exchange Membrane ◽  
Proton Exchange ◽  
Pem Electrolysis ◽  
Alkaline Electrolysis ◽  
Exchange Membrane

Anion exchange membrane (AEM) electrolysis eradicates platinum group metal electrocatalysts and diaphragms and is used in conventional proton exchange membrane (PEM) electrolysis and alkaline electrolysis.

Denitrification of ground water by electrodialysis using a new anion exchange membrane

2000 ◽  
Vol 49 (4) ◽  
pp. 211-218
Author(s):  
F. Elhannouni ◽  
M. Belhadj ◽  
M. Taky ◽  
A. El Midaoui ◽  
L. Echihabi ◽  
...  
Keyword(s):  
Ground Water ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Exchange Membrane

scholarly journals Durability of Anion Exchange Membrane Water Electolyzers

2021 ◽  
Author(s):  
Dongguo Li ◽  
Andrew R Motz ◽  
Chulsung Bae ◽  
Cy Fujimoto ◽  
Gaoqiang Yang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Anion Exchange ◽  
Low Cost ◽  
Anion Exchange Membrane ◽  
Production Technologies ◽  
Exchange Membrane

Interest in the low-cost production of clean hydrogen is growing. Anion exchange membrane water electrolyzers (AEMWEs) are considered one of the most promising sustainable hydrogen production technologies because of their...

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