The role of ligament gap in electrocatalytic activity of reduced graphene oxide/NiO mesoporous in hydrogen evolution reaction

Munawar Khalil; Lulu Aulia; Tribidasari A. Ivandini; Grandprix T.M. Kadja; Rahmat Hidayat; Fitri Fitrilawati; Prastika K. Jiwanti

doi:10.1016/j.cplett.2023.140633

The role of ligament gap in electrocatalytic activity of reduced graphene oxide/NiO mesoporous in hydrogen evolution reaction

Munawar Khalil, Lulu Aulia, Tribidasari A. Ivandini, Grandprix T.M. Kadja, Rahmat Hidayat, Fitri Fitrilawati, Prastika K. Jiwanti

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This work investigates the role of ligament gap of NiO mesoporous prepared with different template in the activity of rGO/NiO in alkaline hydrogen evolution reaction. The activity of electrocatalyst was found to be highly dictated by the size of ligament gap rather than surface area. Result showed that rGO/NiO made with KCC-1 exhibited a superior activity due to its large ligament gap, even though its surface area was the smallest. It is believed that the evolved hydrogen gas built-up inside NiO mesoporous bulk structure could increase the internal electrode resistance and decrease overall catalytic activity.

Original language	English
Article number	140633
Journal	Chemical Physics Letters
Volume	825
DOIs	https://doi.org/10.1016/j.cplett.2023.140633
Publication status	Published - 16 Aug 2023

Keywords

Hydrogen evolution reaction
Ligament gap
NiO mesoporous
Reduced graphene oxide

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10.1016/j.cplett.2023.140633

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title = "The role of ligament gap in electrocatalytic activity of reduced graphene oxide/NiO mesoporous in hydrogen evolution reaction",

abstract = "This work investigates the role of ligament gap of NiO mesoporous prepared with different template in the activity of rGO/NiO in alkaline hydrogen evolution reaction. The activity of electrocatalyst was found to be highly dictated by the size of ligament gap rather than surface area. Result showed that rGO/NiO made with KCC-1 exhibited a superior activity due to its large ligament gap, even though its surface area was the smallest. It is believed that the evolved hydrogen gas built-up inside NiO mesoporous bulk structure could increase the internal electrode resistance and decrease overall catalytic activity.",

keywords = "Hydrogen evolution reaction, Ligament gap, NiO mesoporous, Reduced graphene oxide",

author = "Munawar Khalil and Lulu Aulia and Ivandini, {Tribidasari A.} and Kadja, {Grandprix T.M.} and Rahmat Hidayat and Fitri Fitrilawati and Jiwanti, {Prastika K.}",

note = "Funding Information: The authors acknowledge the financial support provided by Directorate of Research and Development Universitas Indonesia via Hibah Program Penelitian Kolaborasi Indonesia (PPKI) 2020 (Contact No. NKB-3143/UN2.RST/HKP.05.00/2020 ). Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = aug,

day = "16",

doi = "10.1016/j.cplett.2023.140633",

language = "English",

volume = "825",

journal = "Chemical Physics Letters",

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T1 - The role of ligament gap in electrocatalytic activity of reduced graphene oxide/NiO mesoporous in hydrogen evolution reaction

AU - Khalil, Munawar

AU - Aulia, Lulu

AU - Ivandini, Tribidasari A.

AU - Kadja, Grandprix T.M.

AU - Hidayat, Rahmat

AU - Fitrilawati, Fitri

AU - Jiwanti, Prastika K.

N1 - Funding Information: The authors acknowledge the financial support provided by Directorate of Research and Development Universitas Indonesia via Hibah Program Penelitian Kolaborasi Indonesia (PPKI) 2020 (Contact No. NKB-3143/UN2.RST/HKP.05.00/2020 ). Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/8/16

Y1 - 2023/8/16

N2 - This work investigates the role of ligament gap of NiO mesoporous prepared with different template in the activity of rGO/NiO in alkaline hydrogen evolution reaction. The activity of electrocatalyst was found to be highly dictated by the size of ligament gap rather than surface area. Result showed that rGO/NiO made with KCC-1 exhibited a superior activity due to its large ligament gap, even though its surface area was the smallest. It is believed that the evolved hydrogen gas built-up inside NiO mesoporous bulk structure could increase the internal electrode resistance and decrease overall catalytic activity.

AB - This work investigates the role of ligament gap of NiO mesoporous prepared with different template in the activity of rGO/NiO in alkaline hydrogen evolution reaction. The activity of electrocatalyst was found to be highly dictated by the size of ligament gap rather than surface area. Result showed that rGO/NiO made with KCC-1 exhibited a superior activity due to its large ligament gap, even though its surface area was the smallest. It is believed that the evolved hydrogen gas built-up inside NiO mesoporous bulk structure could increase the internal electrode resistance and decrease overall catalytic activity.

KW - Hydrogen evolution reaction

KW - Ligament gap

KW - NiO mesoporous

KW - Reduced graphene oxide

UR - http://www.scopus.com/inward/record.url?scp=85161075854&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2023.140633

DO - 10.1016/j.cplett.2023.140633

M3 - Article

AN - SCOPUS:85161075854

SN - 0009-2614

VL - 825

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 140633

ER -

The role of ligament gap in electrocatalytic activity of reduced graphene oxide/NiO mesoporous in hydrogen evolution reaction

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Keywords

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