Synthesis of Nanoporous Carbon- Cobalt- Oxide Hybrid Electrocatalysts by Thermal Conversion of Metal- Organic Frameworks

被引：256

作者：

Chaikittisilp, Watcharop ^{[1
]}

Torad, Nagy L. ^{[1
,2
]}

Li, Cuiling ^{[1
]}

Imura, Masataka ^{[3
]}

Suzuki, Norihiro ^{[4
]}

Ishihara, Shinsuke ^{[1
]}

Ariga, Katsuhiko ^{[1
,5
,6
]}

Yamauchi, Yusuke ^{[1
,2
,5
,6
]}

机构：

[1] Natl Inst Mat Sci, World Premier Int WPI Res Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan

[2] Waseda Univ, Fac Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan

[3] Natl Inst Mat Sci, Opt & Elect Mat Unit, Tsukuba, Ibaraki 3050044, Japan

[4] Natl Inst Mat Sci, ICYS, Tsukuba, Ibaraki 3050047, Japan

[5] Japan Sci & Technol Agcy JST, Precursory Res Embryon Sci & Technol PRESTO, Tsukuba, Ibaraki 3050044, Japan

[6] Japan Sci & Technol Agcy JST, CREST, Tsukuba, Ibaraki 3050044, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2014年 / 20卷 / 15期

关键词：

cobalt oxide; electrocatalysts; mesoporous carbon; metal-organic frameworks; nanoporous carbon; NITROGEN-DOPED CARBON; ZEOLITIC IMIDAZOLATE FRAMEWORK; OXYGEN-REDUCTION; POROUS CARBON; COORDINATION-POLYMER; DIRECT CARBONIZATION; HIGH-PERFORMANCE; SURFACE-AREA; IRON; TEMPLATE;

D O I：

10.1002/chem.201304404

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoporous carbon-cobalt-oxide hybrid materials are prepared by a simple, two-step, thermal conversion of a cobalt-based metal-organic framework (zeolitic imidazolate framework-9, ZIF-9). ZIF-9 is carbonized in an inert atmosphere to form nanoporous carbon-metallic-cobalt materials, followed by the subsequent thermal oxidation in air, yielding nanoporous carbon-cobalt-oxide hybrids. The resulting hybrid materials are evaluated as electrocatalysts for the oxygen-reduction reaction (ORR) and the oxygen-evolution reaction (OER) in a KOH electrolyte solution. The hybrid materials exhibit similar catalytic activity in the ORR to the benchmark, commercial, Pt/carbon black catalyst, and show better catalytic activity for the OER than the Pt-based catalyst.

引用

页码：4217 / 4221

页数：5

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