3D Nitrogen, Sulfur-Codoped Carbon Nanomaterial-Supported Cobalt Oxides with Polyhedron-Like Particles Grafted onto Graphene Layers as Highly Active Bicatalysts for Oxygen-Evolving Reactions
Huang, XB; Wang, JQ; Bao, HL; Zhang, XK; Huang, YM
2018
发表期刊ACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
卷号10期号:8页码:7180-7190
文章类型期刊论文
摘要The extensive research and developments of highly efficient oxygen electrode electrocatalysts to get rid of the kinetic barriers for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are very important in energy conversion and storage devices. Especially, exploring nonprecious metal alternatives to replace traditional noble metal catalysts with high cost and poor durability is the paramount mission. In this paper, we utilize property-flexible ZIF-67 and sulfur-functionalized graphene oxide to obtain a cobalt, nitrogen, and sulfur codoped nanomaterial with 3D hierarchical porous structures, owing to their rich dopant species and good conductivity. The crosslinked structures of polyhedron particles throughout the whole carbon framework speeds up the mass transportation and charge-delivery processes during oxygen-evolving reactions. Also, by exploring the location and coordination type of sulfur dopants, we emphasize the effects of sulfone and sulfide functional groups anchored into the graphitic structure on enhancing the catalytic abilities for ORR and OER. To note, compared to the noble metal electrocatalysts, the best-performing CoO@Co3O4/NSG-650 (0.79 V) is 40 mV less active than the commercial Pt/C catalyst (0.83 V) for ORR and merely 10 mV behind IrO2 (1.68 V) for OER. Besides, the metric between ORR and OER difference for CoO@Co3O4/NSG-650 to evaluate its overall electrocatalytic activity is 0.90 V, surpassing 290 and 430 mV over Pt/C (1.19 V) and IrO2 (1.33 V). Comprehensively, the as-prepared CoO@Co3O4/NSG-650 indicates excellent bifunctional catalytic activities for ORR and OER, which shows great potential for replacing noble metal catalysts in the application of fuel cells and metal air batteries.
关键词Metal-organic Frameworks Doped Porous Carbon One-pot Synthesis Reduction Reaction Evolution Reactions Bifunctional Electrocatalysts Efficient Electrocatalyst Enhanced Performance Energy-storage Batteries
DOI10.1021/acsami.8b00504
收录类别SCI
语种英语
WOS记录号WOS:000426618000044
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28902
专题中科院上海应用物理研究所2011-2018年
作者单位1.Huang, XB
2.Wang, JQ
3.Bao, HL
4.Zhang, XK
5.Huang, YM
推荐引用方式
GB/T 7714
Huang, XB,Wang, JQ,Bao, HL,et al. 3D Nitrogen, Sulfur-Codoped Carbon Nanomaterial-Supported Cobalt Oxides with Polyhedron-Like Particles Grafted onto Graphene Layers as Highly Active Bicatalysts for Oxygen-Evolving Reactions[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(8):7180-7190.
APA Huang, XB,Wang, JQ,Bao, HL,Zhang, XK,&Huang, YM.(2018).3D Nitrogen, Sulfur-Codoped Carbon Nanomaterial-Supported Cobalt Oxides with Polyhedron-Like Particles Grafted onto Graphene Layers as Highly Active Bicatalysts for Oxygen-Evolving Reactions.ACS APPLIED MATERIALS & INTERFACES,10(8),7180-7190.
MLA Huang, XB,et al."3D Nitrogen, Sulfur-Codoped Carbon Nanomaterial-Supported Cobalt Oxides with Polyhedron-Like Particles Grafted onto Graphene Layers as Highly Active Bicatalysts for Oxygen-Evolving Reactions".ACS APPLIED MATERIALS & INTERFACES 10.8(2018):7180-7190.
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