Hyogyun Roh, Sehun Oh, Changhyun Lim and Kijung Yong*,
{"title":"Recent Progress and Challenges in Hybrid Water Electrolysis through Economic Evaluation","authors":"Hyogyun Roh, Sehun Oh, Changhyun Lim and Kijung Yong*, ","doi":"10.1021/acsmaterialslett.4c00676","DOIUrl":null,"url":null,"abstract":"<p >Water electrolysis is a sustainable method of hydrogen production with low levels of CO<sub>2</sub> emissions. However, the problem of high economic costs must be resolved. Hybrid water electrolysis (HWE), derived by replacing the sluggish oxygen evolution reaction, emerges as an alternative method to reduce power consumption. Recent studies on HWEs have focused on reporting cell potential reductions, but their impact on hydrogen production costs is still unclear. In this paper, power consumption and levelized cost of hydrogen (LCOH) were evaluated to understand the economic impact of HWEs. Among various HWEs, HzOR showed an excellent energy consumption reduction (43.3 kWh/kg) resulting in the lowest LCOH ($1.92 kg<sup>–1</sup>). These results prove one of the most effective alternatives to water electrolysis in its current state. Although other HWEs show only small reductions in energy consumption and LCOH in their current state, these reactions still show high potential to reduce energy consumption and LCOH.</p>","PeriodicalId":19,"journal":{"name":"ACS Materials Letters","volume":null,"pages":null},"PeriodicalIF":9.6000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Materials Letters","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c00676","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Water electrolysis is a sustainable method of hydrogen production with low levels of CO2 emissions. However, the problem of high economic costs must be resolved. Hybrid water electrolysis (HWE), derived by replacing the sluggish oxygen evolution reaction, emerges as an alternative method to reduce power consumption. Recent studies on HWEs have focused on reporting cell potential reductions, but their impact on hydrogen production costs is still unclear. In this paper, power consumption and levelized cost of hydrogen (LCOH) were evaluated to understand the economic impact of HWEs. Among various HWEs, HzOR showed an excellent energy consumption reduction (43.3 kWh/kg) resulting in the lowest LCOH ($1.92 kg–1). These results prove one of the most effective alternatives to water electrolysis in its current state. Although other HWEs show only small reductions in energy consumption and LCOH in their current state, these reactions still show high potential to reduce energy consumption and LCOH.
期刊介绍:
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.