Open Pore Architecture of an Ordered Mesoporous IrO2 Thin Film for Highly Efficient Electrocatalytic Water Oxidation

被引：37

作者：

Chandra, Debraj ^{[1
]}

Abe, Naoto ^{[1
]}

Takama, Daisuke ^{[1
]}

Saito, Kenji ^{[1
]}

Yui, Tatsuto ^{[1
]}

Yagi, Masayuki ^{[1
,2
]}

机构：

[1] Niigata Univ, Dept Mat Sci & Technol, Fac Engn, Niigata 9502181, Japan

[2] Japan Sci & Technol Agcy JST, Precursory Res Embryon Sci PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

CHEMSUSCHEM | 2015年 / 8卷 / 05期

关键词：

electrocatalysis; iridium oxide; mesoporous materials; nanostructure engineering; water oxidation; OXYGEN EVOLUTION REACTION; IRIDIUM; ELECTRODES; CRYSTALLIZATION; PERFORMANCE; DEPOSITION; CATALYST; STORAGE;

D O I：

10.1002/cssc.201402911

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the first accessible channel-like open pore architecture of ordered 2D hexagonal mesoporous IrO2 films and its utilization as an efficient anode for electrocatalytic water oxidation. A well-ordered mesostructure of circa 7nm pores were obtained by a facile one-pot soft-templating strategy, employing a [Ir(OH)(6)](2-) precursor stabilized by a triblock copolymer PluronicF127 as a pore-directing template. A mesoporous IrO2 film calcined at 400 degrees C (approximate to 70nm thick) affords a high surface area of 512m(2)cm(-3) and 2times higher O-2 evolution during the electrocatalytic water oxidation relative to an untemplated IrO2 coating film.

引用

页码：795 / 799

页数：5

共 42 条

[1] Remarkably high activity of electrodeposited IrO2 film for electrocatalytic water oxidation
Yagi, M
Tomita, E
Kuwabara, T
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 579 (01): : 83 - 88
[2] Highly Efficient Electrocatalytic Water Oxidation by a Transparent Ordered Mesoporous Film of Intermediate IrOx(OH)y
Chandra, Debraj
Katsuki, Tomohiro
Masaki, Takeshi
Abe, Naoto
Saito, Kenji
Yui, Tatsuto
Yagi, Masayuki
ACS APPLIED ENERGY MATERIALS, 2021, 4 (05) : 4355 - 4364
[3] Ordered Mesoporous Nickel Sphere Arrays for Highly Efficient Electrocatalytic Water Oxidation
Sun, Tingting
Xu, Lianbin
Yan, Yushan
Zakhidov, Anvar A.
Baughman, Ray H.
Chen, Jianfeng
ACS CATALYSIS, 2016, 6 (03): : 1446 - 1450
[4] A novel highly active nanostructured IrO2/Ti anode for water oxidation
Shan, Rui
Zhang, Zichen
Kan, Miao
Zhang, Taiyang
Zan, Qu
Zhao, Yixin
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2015, 40 (41) : 14279 - 14283
[5] Assembly and Valence Modulation of Ordered Bimetallic MOFs for Highly Efficient Electrocatalytic Water Oxidation
Wu, Yaling
Sun, Zhaopeng
Chen, Yingying
Liu, Dan
Meng, Yan
Yan, Zheng
MOLECULES, 2024, 29 (24):
[6] Nanoporous IrO2 catalyst with enhanced activity and durability for water oxidation owing to its micro/mesoporous structure
Li, Guoqiang
Li, Songtao
Xiao, Meiling
Ge, Junjie
Liu, Changpeng
Xing, Wei
NANOSCALE, 2017, 9 (27) : 9291 - 9298
[7] Efficient Electrocatalytic Water Oxidation by a Copper Oxide Thin Film in Borate Buffer
Yu, Fengshou
Li, Fei
Zhang, Biaobiao
Li, Hua
Sun, Licheng
ACS CATALYSIS, 2015, 5 (02): : 627 - 630
[8] Polyoxometalates Immobilized in Ordered Mesoporous Carbon Nitride as Highly Efficient Water Oxidation Catalysts
Wu, Jian
Liao, Lingwen
Yan, Wensheng
Xue, Yan
Sun, Yongfu
Yan, Xin
Chen, Yanxia
Xie, Yi
CHEMSUSCHEM, 2012, 5 (07) : 1207 - 1212
[9] Synthesis and water oxidation electrocatalytic and electrochromic behaviours of mesoporous nickel oxide thin film electrodes
Amirzhanova, Assel
Karakaya, Irmak
Uzundal, Can Berk
Karaoglu, Gozde
Karadas, Ferdi
Ulgut, Burak
Dag, Omer
JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (38) : 22012 - 22020
[10] Self-assembly of active IrO2 colloid catalyst on an ITO electrode for efficient electrochemical water oxidation
Yagi, M
Tomita, E
Sakita, S
Kuwabara, T
Nagai, K
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (46): : 21489 - 21491

← 1 2 3 4 5 →