Recent Advances and Perspectives in Electrolysis Processes

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Materials for Energy Applications".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 1743

Special Issue Editors


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Guest Editor
Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY, USA
Interests: electrochemistry; material chemistry; batteries; fuel cells; electrolyzers; membrane synthesis; graphene based materials

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Guest Editor
Graduate School of Energy and Environment (KU-KIST Green School), Korea University (KU), Seoul 136-713, Republic of Korea
Interests: electrochemistry; supercapacitors; batteries
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Special Issue Information

Dear Colleagues,

Hydrogen (H2), which is considered to be a green and sustainable fuel because of having nonintermittent energy feedstock, higher energy efficiency and negligible impact on the environment. Electrochemical approaches to produce H2 with the contribution of sustainable energy sources such as solar and wind have received tremendous attention. This is because they are able to enhance the overall energy efficiency compared to nonrenewable energy sources such as coal, which has harmful impacts on the environment. This carbon-free and environment friendly production of H2 via water electrolysis has gained much consideration for different electrolysis methods such as alkaline water electrolysis, proton exchange membrane (PEM) water electrolysis and solid oxide water electrolysis. These techniques are based on the types of electrolytes used as well as the temperature and electrolyzer design, and have proven their potential to commercialize these devices. Various literatures have reported on the studies which have been utilized to enhance the electrocatalytic production of hydrogen via these techniques. However, such sustainable approaches for green fuel production are still underutilized in terms of recent electrolysis investigations.

In this Special Issue, we are pleased to invite contributions on: (1) design of novel electrode materials for energy-related catalysis, such as water splitting, CO2 reduction, ammonia synthesis; (2) energy storage-related topics such as lithium-ion batteries, Li-S batteries and another new kind of battery; (3) theoretical or experimental studies on the catalytic properties of nanomaterials for energy conversion; (4) understanding the reaction mechanism of energy conversion. All in all, your latest research activities in the field of energy conversion and storage are very welcome.

Dr. Manu Gautam
Dr. Suresh Kannan Balasingam
Guest Editors

Manuscript Submission Information

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Keywords

  • electrolysis 
  • hydrogen production 
  • hydrogen evolution reaction 
  • alkaline electrolysis 
  • renewable energy 
  • membrane electrolysis 
  • electrocatalysis 
  • sodium-ion battery 
  • lithium-ion batteries
  • water electrolysis
  • catalysis
  • electrode catalysis
  • graphene
  • nanocomposite 
  • anode materials
  • electrode materials
  • Pb-catalyzed
  • energy materials
  • oxygen reduction reaction
  • energy conversion

Published Papers (1 paper)

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Research

15 pages, 8070 KiB  
Article
Low-Temperature Manufacture of Cubic-Phase Li7La3Zr2O12 Electrolyte for All-Solid-State Batteries by Bed Powder
by Taehong Park, Sunho Lee and Dong-Min Kim
Crystals 2024, 14(3), 271; https://doi.org/10.3390/cryst14030271 - 11 Mar 2024
Viewed by 860
Abstract
As the demand for battery technology with enhanced safety and high energy density increases, solid-state batteries are currently attracting attention as a solution to problems such as fire and explosion risks associated with lithium-ion batteries. In this study, experiments were conducted to synthesize [...] Read more.
As the demand for battery technology with enhanced safety and high energy density increases, solid-state batteries are currently attracting attention as a solution to problems such as fire and explosion risks associated with lithium-ion batteries. In this study, experiments were conducted to synthesize and optimize Li7La3Zr2O12 (LLZO), a solid electrolyte that is a key component of lithium-ion batteries with stability and high energy density. Experimental results showed that sintering at a low temperature of 800 °C for 8 h was the optimal synthesis and sintering time. Additionally, the excess lithium-containing bed powder enabled the production of pure cubic-phase LLZO. Through a sintering process that creates a lithium atmosphere on the bottom surface and facilitates lithium replenishment, an additional tunnel was introduced between the specimen and the alumina powder, allowing the bottom surface of the specimen to be exposed to the lithium atmosphere. By manufacturing a uniform cubic electrolyte, the path to manufacturing all-solid-state batteries was opened. These findings provide a new approach to forming cubic-phase LLZO with much higher ionic conductivity than the tetragonal phase at low sintering temperatures. Full article
(This article belongs to the Special Issue Recent Advances and Perspectives in Electrolysis Processes)
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