Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411008, India.
Chemistry. 2013 Jan 14;19(3):974-80. doi: 10.1002/chem.201202940. Epub 2012 Nov 30.
Porous nitrogen-rich carbon (POF-C-1000) that was synthesized by using a porous organic framework (POF) as a self-sacrificing host template in a nanocasting process possessed a high degree of graphitization in an ordered structural arrangement with large domains and well-ordered arrays of carbon sheets. POF-C-1000 exhibits favorable electrocatalytic activity for the oxygen-reduction reaction (ORR) with a clear positive shift of about 40 mV in the onset potential compared to that of a traditional, commercially available Pt/C catalyst. In addition, irrespective of its moderate surface area (785 m(2) g(-1)), POF-C-1000 showed a reasonable H(2) adsorption of 1.6 wt % (77 K) and a CO(2) uptake of 3.5 mmol g(-1) (273 K).
多孔富氮碳(POF-C-1000)是通过在纳米铸造过程中使用多孔有机骨架(POF)作为自牺牲主体模板合成的,其具有高度石墨化的有序结构排列,具有大域和有序的碳片排列。POF-C-1000 对氧还原反应(ORR)表现出有利的电催化活性,与传统的市售 Pt/C 催化剂相比,其起始电位正向移动约 40 mV。此外,尽管其比表面积适中(785 m(2) g(-1)),但 POF-C-1000 表现出合理的 H(2)吸附量为 1.6 wt%(77 K)和 CO(2)吸收量为 3.5 mmol g(-1)(273 K)。