scholarly journals Chemically stabilised extruded and recast short side chain Aquivion® proton exchange membranes for high current density operation in water electrolysis

2019 ◽  
Vol 578 ◽  
pp. 136-148 ◽  
Author(s):  
Stefania Siracusano ◽  
Claudio Oldani ◽  
Maria Assunta Navarra ◽  
Stefano Tonella ◽  
Lucia Mazzapioda ◽  
...  
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Water Electrolysis ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Side Chain ◽  
High Current ◽  
Short Side

scholarly journals Investigation of the stability of NiFe-(oxy)hydroxide anodes in alkaline water electrolysis under industrially relevant conditions

2020 ◽  
Vol 10 (16) ◽  
pp. 5593-5601 ◽  
Author(s):  
Marco Etzi Coller Pascuzzi ◽  
Alex J. W. Man ◽  
Andrey Goryachev ◽  
Jan P. Hofmann ◽  
Emiel J. M. Hensen
Keyword(s):  
Elevated Temperature ◽  
Current Density ◽  
Anodic Polarization ◽  
High Current Density ◽  
Water Electrolysis ◽  
High Current ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
And Performance ◽  
The Stability

Anodic polarization conducted at high current density, elevated temperature, and high KOH concentration impacted the structure and performance of NiFeOxHy and NiOxHy anodes.

An extremely low Pt loading cathode for a highly efficient proton exchange membrane water electrolyzer

Nanoscale ◽  
2017 ◽  
Vol 9 (48) ◽  
pp. 19045-19049 ◽  
Author(s):  
Hoyoung Kim ◽  
Seunghoe Choe ◽  
Hyanjoo Park ◽  
Jong Hyun Jang ◽  
Sang Hyun Ahn ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Current Density ◽  
High Performance ◽  
Proton Exchange Membrane ◽  
High Current Density ◽  
Proton Exchange ◽  
The Self ◽  
High Current ◽  
Low Pt Loading ◽  
Exchange Membrane

The self-terminated electrodeposition (SED) of a Pt cathode with enhanced mass transfer demonstrates high performance of PEMWEs at high current density.

scholarly journals N-Doped Graphene-Decorated NiCo Alloy Coupled with Mesoporous NiCoMoO Nano-sheet Heterojunction for Enhanced Water Electrolysis Activity at High Current Density

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Guangfu Qian ◽  
Jinli Chen ◽  
Tianqi Yu ◽  
Lin Luo ◽  
Shibin Yin
Keyword(s):  
Current Density ◽  
Mechanical Stability ◽  
High Current Density ◽  
Nickel Foam ◽  
Water Electrolysis ◽  
Bifunctional Catalyst ◽  
Intrinsic Activity ◽  
High Current ◽  
Actual Application ◽  
Doped Graphene

AbstractDeveloping highly effective and stable non-noble metal-based bifunctional catalyst working at high current density is an urgent issue for water electrolysis (WE). Herein, we prepare the N-doped graphene-decorated NiCo alloy coupled with mesoporous NiCoMoO nano-sheet grown on 3D nickel foam (NiCo@C-NiCoMoO/NF) for water splitting. NiCo@C-NiCoMoO/NF exhibits outstanding activity with low overpotentials for hydrogen and oxygen evolution reaction (HER: 39/266 mV; OER: 260/390 mV) at ± 10 and ± 1000 mA cm−2. More importantly, in 6.0 M KOH solution at 60 °C for WE, it only requires 1.90 V to reach 1000 mA cm−2 and shows excellent stability for 43 h, exhibiting the potential for actual application. The good performance can be assigned to N-doped graphene-decorated NiCo alloy and mesoporous NiCoMoO nano-sheet, which not only increase the intrinsic activity and expose abundant catalytic activity sites, but also enhance its chemical and mechanical stability. This work thus could provide a promising material for industrial hydrogen production.

Sign in / Sign up

Export Citation Format

Share Document