The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis
Alkaline water electrolysis (AWE) is a mature water electrolysis technology that can produce green hydrogen most economically. This is mainly attributed to the use of Ni-based materials that are easy to process and inexpensive. The nickel-based meshes with various structures such as woven mesh and e...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-11-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2021.787787/full |
| _version_ | 1819038305408253952 |
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| author | Hae In Lee Hae In Lee Hyun-Seok Cho MinJoong Kim Jae Hun Lee ChangSoo Lee Sechan Lee Sang-Kyung Kim Sang-Kyung Kim Chang-Hee Kim Kwang Bok Yi Kwang Bok Yi Won-Chul Cho Won-Chul Cho |
| author_facet | Hae In Lee Hae In Lee Hyun-Seok Cho MinJoong Kim Jae Hun Lee ChangSoo Lee Sechan Lee Sang-Kyung Kim Sang-Kyung Kim Chang-Hee Kim Kwang Bok Yi Kwang Bok Yi Won-Chul Cho Won-Chul Cho |
| author_sort | Hae In Lee |
| collection | DOAJ |
| description | Alkaline water electrolysis (AWE) is a mature water electrolysis technology that can produce green hydrogen most economically. This is mainly attributed to the use of Ni-based materials that are easy to process and inexpensive. The nickel-based meshes with various structures such as woven mesh and expanded mesh are widely used as electrode in the AWE due to its common availability and easy fabrication. However, the morphological effect of meshes on hydrogen evolution reaction (HER) performance has not been studied. Here a new parameter to determine the structural effect of mesh on HER performance was first proposed. The key factors of the parameter were found to be the strand width, pore width and the strand surface area. The woven mesh with the ratio of pore width to strand width that converges to 1 showed the lowest the overpotential. The expanded mesh with the higher the structural surface area exhibited the lowest the overpotential. This study will help to choose an optimal structure for the mesh with the HER electrode. |
| first_indexed | 2024-12-21T08:35:12Z |
| format | Article |
| id | doaj.art-307a6b8577274a808c762cca19f06c62 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-21T08:35:12Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-307a6b8577274a808c762cca19f06c622022-12-21T19:10:05ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462021-11-01910.3389/fchem.2021.787787787787The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water ElectrolysisHae In Lee0Hae In Lee1Hyun-Seok Cho2MinJoong Kim3Jae Hun Lee4ChangSoo Lee5Sechan Lee6Sang-Kyung Kim7Sang-Kyung Kim8Chang-Hee Kim9Kwang Bok Yi10Kwang Bok Yi11Won-Chul Cho12Won-Chul Cho13Hydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaGraduate School of Energy Science and Technology, Chungnam National University (CNU), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaDepartment of Advanced Energy and Technology, Korea University of Science and Technology (UST), Daejeon, South KoreaDepartment of Hydrogen Energy, Korea Institute of Energy Technology (KENTECH), Naju-si, South KoreaGraduate School of Energy Science and Technology, Chungnam National University (CNU), Daejeon, South KoreaDepartment of Chemical Engineering Education, Chungnam National University (CNU), Daejeon, South KoreaHydrogen Research Department, Korea Institute of Energy Research (KIER), Daejeon, South KoreaGraduate School of Energy Science and Technology, Chungnam National University (CNU), Daejeon, South KoreaAlkaline water electrolysis (AWE) is a mature water electrolysis technology that can produce green hydrogen most economically. This is mainly attributed to the use of Ni-based materials that are easy to process and inexpensive. The nickel-based meshes with various structures such as woven mesh and expanded mesh are widely used as electrode in the AWE due to its common availability and easy fabrication. However, the morphological effect of meshes on hydrogen evolution reaction (HER) performance has not been studied. Here a new parameter to determine the structural effect of mesh on HER performance was first proposed. The key factors of the parameter were found to be the strand width, pore width and the strand surface area. The woven mesh with the ratio of pore width to strand width that converges to 1 showed the lowest the overpotential. The expanded mesh with the higher the structural surface area exhibited the lowest the overpotential. This study will help to choose an optimal structure for the mesh with the HER electrode.https://www.frontiersin.org/articles/10.3389/fchem.2021.787787/fullalkaline water electrolysishydrogen evolution reactionelectrodecomplex structured materialnickel woven meshnickel expanded mesh |
| spellingShingle | Hae In Lee Hae In Lee Hyun-Seok Cho MinJoong Kim Jae Hun Lee ChangSoo Lee Sechan Lee Sang-Kyung Kim Sang-Kyung Kim Chang-Hee Kim Kwang Bok Yi Kwang Bok Yi Won-Chul Cho Won-Chul Cho The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis Frontiers in Chemistry alkaline water electrolysis hydrogen evolution reaction electrode complex structured material nickel woven mesh nickel expanded mesh |
| title | The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis |
| title_full | The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis |
| title_fullStr | The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis |
| title_full_unstemmed | The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis |
| title_short | The Structural Effect of Electrode Mesh on Hydrogen Evolution Reaction Performance for Alkaline Water Electrolysis |
| title_sort | structural effect of electrode mesh on hydrogen evolution reaction performance for alkaline water electrolysis |
| topic | alkaline water electrolysis hydrogen evolution reaction electrode complex structured material nickel woven mesh nickel expanded mesh |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2021.787787/full |
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