2005
DOI: 10.1021/cm047944y
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Formation of Platinum-Free Fuel Cell Cathode Catalyst with Highly Developed Nanospace by Carbonizing Catalase

Abstract: The amount of platinum in the catalyst for the electrodes of polymer electrolyte fuel cells must be minimized to widely substitute this new energy system for conventional ones. In this study, a platinum-free catalyst for the cathodic oxygen reduction was formed from a natural organic compound, catalase. We carbonized catalase to produce a catalyst active in the superacidic atmosphere of the polymer electrolyte. Nitrogen adsorption onto the carbonized material revealed that the material had highly developed int… Show more

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Cited by 79 publications
(70 citation statements)
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“…[12,13] But the major challenge associated with fuel cells is the high cost of the catalyst required for the cathodic oxygen reduction reaction (ORR). [14] To reduce the cost of fuel cells, the replacement of platinum with nonprecious metals or metal-free catalysts is necessary and some effort has been made to prepare platinum-free catalysts with promising performance, for example, carbonized catalysts, [15] cobalt-or iron-based catalysts, [14] tungsten carbides, [16] and transition-metal chalcogenides. [12,17,18] Transition-metal chalcogenides have been used in many fields, for example, in optical sensors, [19] optoelectronic devices, [20] magnetic devices, [21] and as catalysts.…”
Section: Introductionmentioning
confidence: 99%
“…[12,13] But the major challenge associated with fuel cells is the high cost of the catalyst required for the cathodic oxygen reduction reaction (ORR). [14] To reduce the cost of fuel cells, the replacement of platinum with nonprecious metals or metal-free catalysts is necessary and some effort has been made to prepare platinum-free catalysts with promising performance, for example, carbonized catalysts, [15] cobalt-or iron-based catalysts, [14] tungsten carbides, [16] and transition-metal chalcogenides. [12,17,18] Transition-metal chalcogenides have been used in many fields, for example, in optical sensors, [19] optoelectronic devices, [20] magnetic devices, [21] and as catalysts.…”
Section: Introductionmentioning
confidence: 99%
“…Several groups have since developed Fe/N/C and Co/N/C electrocatalysts and their work has been summarized in a recent review [3]. Since this review was written, several researchers (including our group) have continued to follow Yeager's steps and obtained Fe and Co-based catalysts for the oxygen reduction reaction (ORR) that are active in fuel cell conditions [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”
Section: Introductionmentioning
confidence: 99%
“…In PEMFCs the mass loading reduction of the expensive Pt is required to catalyze the HOR. Significant efforts have been made on the potential use of partial or complete replacement of Pt electrocatalyst at the cathode [107][108][109].…”
Section: Hydrogen Oxidation Reaction-hormentioning
confidence: 99%