Direct synthesis of a carbonaceous fuel cell catalyst from solid containing small organic molecules and metal salts

Pore Development in Carbonized Hemoglobin by Concurrently Generated MgO Template for Activity Enhancement as Fuel Cell Cathode Catalyst

“…It is proposed that H 2 O 2 generated in the PEFC attacks and decomposes the active site. , The ordered structure of the Fe–N 4 moiety could be advantageous in avoiding the H 2 O 2 attack due to the absence of disordered N, which might be easily attacked. The relatively high durability was also observed for the carbonaceous PEFC cathode catalyst formed using the MgO template, suggesting the possibility that MgO might affect the durability . Further studies are underway to form catalysts with a high durability using the MgO template method and various starting materials for clarifying the effect of MgO.…”

“…The relatively high durability was also observed for the carbonaceous PEFC cathode catalyst formed using the MgO template, suggesting the possibility that MgO might affect the durability. 9 Further studies are underway to form catalysts with a high durability using the MgO template method and various starting materials for clarifying the effect of MgO.…”

“…Quite recently, we found that this MgO template method could be applied to a small organic molecule and an iron salt as the starting materials to form a carbon material with developed pores and catalytic activity for the cathodic oxygen reduction. 9 Our previous studies have shown that the carbon materials formed from heme-containing proteins, such as catalase and hemoglobin, function as a catalyst in the cathode of a polymer electrolyte fuel cell (PEFC). 10−14 The PEFC is a clean and efficient new energy system 15 and expected to improve the global environment by its widespread use after realization of the active and stable noble-metal-free catalysts free from cost inflation and resource limitations.…”

“…The significant advantages of this method are ease of preparation of the carbon-template composite; the mixing the starting materials is possible in solutions and also in powders, and facility of the removal of the MgO, which is possible even with weak acid solutions like acetic acid. Quite recently, we found that this MgO template method could be applied to a small organic molecule and an iron salt as the starting materials to form a carbon material with developed pores and catalytic activity for the cathodic oxygen reduction …”

Template-Free Synthesis of N-Doped Porous Carbon Materials From Furfuryl Amine-Based Protic Salts

“…In contrast to the time-consuming templating or activation methods, direct synthesis of porous carbons from simple precursors via templatefree carbonization is much more feasible and highly attractive. Indeed, there are several works related to direct synthesis from precursors such as metal organic frameworks (MOFs) (Shen and Bai, 2010;Hu et al, 2012), organic metal salts (Maruyama et al, 2010;Sevilla and Fuertes, 2014), crude plant materials (Titirici et al, 2007), self-assembled block copolymers (Zhong et al, 2012), hydrogen-bonding supramolecular precursors (Zhang et al, 2015e), Nevertheless, these methods appear to be challenging and still suffer from detrimental issues such as less developed porosity, absence of heteroatom doping, uncontrolled structure and properties, and complicated synthesis.…”