2002
DOI: 10.1021/ja0203972
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Fabrication of Ordered Uniform Porous Carbon Networks and Their Application to a Catalyst Supporter

Abstract: Ordered uniform porous carbon frameworks showing interesting morphology variations were synthesized against removable colloidal silica crystalline templates through simply altering acid catalyst sites for acid-catalyzed polymerization. These highly ordered uniform porous carbons as a catalyst supporter resulted in much improved catalytic activity for methanol oxidation in a fuel cell.

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Cited by 488 publications
(296 citation statements)
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“…Moreover, 650°C heating made more acid sites exposed at the surface of diatom shells and montmorillonite particles, so that the acid amount of Dt(JL)-T is higher than that of Dt(JL) [13]. And acid washing resulted in the introduction of Al species onto the surface or implant into the structure [39] of diatom shell. These Al species were derived from montmorillonite by acid leach [40], and they possessed high acid strength so that increased the acidity of the diatomite template.…”
Section: N 2 Adsorption and Mercury Intrusionmentioning
confidence: 99%
“…Moreover, 650°C heating made more acid sites exposed at the surface of diatom shells and montmorillonite particles, so that the acid amount of Dt(JL)-T is higher than that of Dt(JL) [13]. And acid washing resulted in the introduction of Al species onto the surface or implant into the structure [39] of diatom shell. These Al species were derived from montmorillonite by acid leach [40], and they possessed high acid strength so that increased the acidity of the diatomite template.…”
Section: N 2 Adsorption and Mercury Intrusionmentioning
confidence: 99%
“…47 Eles alteraram a localização dos sítios ácidos e obtiveram réplicas de carbonos porosos, com morfologias diferentes, ao se induzir diferentes processos de polimerização do precursor de carbono (fenol e formaldeído) no molde de cristal coloidal. Essa alteração levou a um controle sobre os sítios onde se iniciariam as reações de condensação catalíticas, a partir do mesmo precursor.…”
Section: Preparação De Carbonos Macroporososunclassified
“…Os carbonos porosos nanoestruturados com capacidade de suportar aglomerados de platina, com dispersão elevada e uniforme e estrutura grafitíca, podem levar a excelentes resultados quando utilizados em células a combustível conduzindo também a uma economia no processo, pois podem permitir uma atividade catalítica máxima com um mínimo conteúdo de platina, de custo elevado 14,45,47,48,51,52,54 Um exemplo desses sistemas é constituído pelos carbonos microporosos e mesoporosos utilizados como suporte em catalisadores de células a combustível direta de metanol. 45,52 Nos dois casos estudados, foi utilizado um catalisador de platina comercial, para efeito de comparação.…”
unclassified
“…However, the preparation of mesoporous carbon materials with ordered open pore structures is extremely difficult in solution and remains challenging because of the high formation energy of C-C bonds. Significant research activity has been undertaken to develop mesoporous carbons due to their enormous potential for many high-tech applications such as hydrogen storage, catalysis, adsorption, separations and electrochemical double capacitors, even semiconductor and space technologies (73,74). Most of the studies were focused on mesoporous carbon replicas prepared by a mesoporous silica hard-templating method.…”
Section: Surfactant Self-assembly Approachmentioning
confidence: 99%