Molecular architecture of cobalt porphyrin multilayers on reduced graphene oxide sheets for high-performance oxygen reduction reaction.
Molecular architecture of cobalt porphyrin multilayers on reduced graphene oxide sheets for high-performance oxygen reduction reaction.
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DOI：
10.1002/anie.201300711
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发表时间：
2013-05
影响因子：
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通讯作者：
Hongjie Tang;H. Yin;Jiangyan Wang;Nailiang Yang;Dan Wang;Z. Tang
中科院分区：
文献类型：
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作者：
Hongjie Tang;H. Yin;Jiangyan Wang;Nailiang Yang;Dan Wang;Z. Tang
由于其轻质、高效、模块化和可扩展的特性，聚合物电解质膜燃料电池（PEMFC）长期以来一直被认为是交通运输以及固定和便携式电子产品应用的有前途的候选者。 [1] 不幸的是，尽管燃料电池技术具有上述优点，但迄今为止尚未实现大规模商业化，主要问题包括运行时间短和所用材料成本高。 [1b-d] 例如，铂基材料通常被认为是 PEMFC 阴极氧还原反应 (ORR) 的理想催化剂；然而，其对甲醇燃料的耐受性差、价格高且稀缺等缺点限制了铂基催化剂的实际应用。 [2]因此，用低成本、高催化活性、鲁棒性好的非贵金属催化剂替代铂基材料已成为质子交换膜燃料电池实现大规模应用的关键问题之一。 [3a，b]
Thanks to their lightweight, highly efficient, modular and scalable properties, polymer electrolyte membrane fuel cells (PEMFCs) have long been thought to be a promising candidate for applications in transportation and in both stationary and portable electronics. [1] Unfortunately, despite the above advantages, until now the fuel-cell technologies have failed to reach mass commercialization, and the main problems include short operational time and high cost of the materials used. [1b–d] For example, platinum-based materials are generally believed to be ideal catalysts for the oxygen reduction reaction (ORR) at the cathodes of PEMFCs; however, their disadvantages, for example, low tolerance to methanol fuel, high price and scarcity, limit the practical application of platinum-based catalysts. [2] Therefore, replacement of platinum-based materials with non-precious-metal catalysts, which are of low cost, high catalytic activity, and robust, has become one of the key issues for the realization of mass applications of PEMFCs. [3a,b]