24小时热门版块排行榜

返回列表

【奖励】本帖被评价43次，作者海天天意增加金币 34.4 个

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

海天天意

铁杆木虫 (正式写手)

应助: 1 (幼儿园)
金币: 8265.5
帖子: 936
在线: 230.2小时
虫号: 1350494

[资源] Chem Soc Rev15.12.15 非贵金属多孔碳用于ORR

Highly efficient nonprecious metal catalysts towards oxygen reduction reaction based on three-dimensional porous carbon nanostructures
Chengzhou Zhu,†a He Li,†a Shaofang Fu,a Dan Duab and Yuehe Lin*a
Developing a low cost, highly active, durable cathode towards an oxygen reduction reaction (ORR) is one of the high-priority research directions for commercialization of low-temperature polymer electrolyte membrane fuel cells (PEMFCs). However, the electrochemical performance of PEMFCs is still hindered by the high cost and insufficient durability of the traditional Pt-based cathode catalysts. Under these circumstances, the search for efficient alternatives to replace Pt for constructing highly efficient nonprecious metal catalysts(NPMCs) has been growing intensively and has received great interest. Combining with the compositional effects, the accurate design of NPMCs with 3D porous nanostructures plays a significant role in further enhancing ORR performance. These 3D porous architectures are able to provide higher specific surface areas and larger pore volumes, not only maximizing the availability of electron transfer within the nanosized electrocatalyst surface area but also providing better mass transport of reactants to the
electrocatalyst. In this Tutorial Review, we focus on the rational design and synthesis of different 3D porous carbon-based nanomaterials, such as heteroatom-doped carbon, metal–nitrogen–carbon nanostructures and a series of carbon/nonprecious metal-based hybrids. More importantly, their enhanced ORR performances are also demonstrated by virtue of their favorably porous morphologies and compositional effects. Finally, the future trends and perspectives for the highly efficient porous NPMCs regarding the material design are discussed, with an emphasis on substantial development of advanced carbon-based NPMCs for ORR in the near future.

1.jpg

Highly efficient nonprecious metal catalysts towards oxygen reduction reaction based on three-dimensional porous carbon nanostructures.jpg

回复此楼

» 本帖附件资源列表

欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com
附件 1 : Highly_efficient_nonprecious_metal_catalysts_towards_oxygen_reduction_reaction_based_on_three-dimensional_porous_carbon_nanostructures.pdf

2015-12-15 08:53:13, 4.71 M