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Novel Electrocatalyst for Alkaline Membrane Water Electrolysis
Author(s) -
Mandal Mrinmay
Publication year - 2020
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.202001074
Subject(s) - electrolysis , electrocatalyst , electrolysis of water , alkaline water electrolysis , water splitting , polymer electrolyte membrane electrolysis , oxygen evolution , chemical engineering , hydrogen production , high temperature electrolysis , materials science , proton exchange membrane fuel cell , steam reforming , chemistry , inorganic chemistry , hydrogen , catalysis , electrolyte , electrochemistry , electrode , organic chemistry , engineering , photocatalysis
The production of H 2 has aroused considerable attention worldwide as a renewable and sustainable energy source for domestic, industrial, and automotive purposes. Currently, about 95 % of H 2 is produced from the steam reforming of methane. However, this process leads to the burning of fossil fuels and emits greenhouse gases into the atmosphere. Water electrolysis is an effective strategy to produce H 2 in high purity. Alkaline anion exchange membrane water electrolysis (AAEMWE) is preferred to proton exchange membrane water electrolysis (PEMWE) because of the flexibility to be able to use cheaper membranes as separators and non‐noble electrocatalysts. However, the sluggish oxygen evolution reaction (OER) kinetics in AAEMWE is a bottleneck for water splitting efficiency and decreases the overall performances. Now, a novel nickel and iron graphene‐nanoplatelets‐supported metal‐organic framework‐based electrocatalyst has been developed that shows excellent durability and record‐high current density for alkaline electrolysis that outperforms the state‐of‐the‐art OER electrocatalysts.