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Platinum phosphide as a cathode catalyst for pemfcs and phosphorous treatment of catalysts for fuel cell

A fuel cell and catalyst technology, applied in fuel cells, physical/chemical process catalysts, battery electrodes, etc., to reduce costs and improve stability

Inactive Publication Date: 2012-02-29
CELLCENTRIC GMBH & CO KG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, these platinum-transition metal alloy catalysts are ultimately no more active than pure platinum catalysts

Method used

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  • Platinum phosphide as a cathode catalyst for pemfcs and phosphorous treatment of catalysts for fuel cell
  • Platinum phosphide as a cathode catalyst for pemfcs and phosphorous treatment of catalysts for fuel cell
  • Platinum phosphide as a cathode catalyst for pemfcs and phosphorous treatment of catalysts for fuel cell

Examples

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Effect test

example 1

[0102] Example 1: Synthesis of platinum phosphide catalyst using TKK 50 and P

[0103] A weighed amount of red phosphorus (high purity: 99.999%) was combined with a weighed amount of TKK 50 in a quartz ampoule at an atomic ratio of Pt:P=1:2. The ampoule was evacuated (to 10 -5 support) and be sealed. The sample was then heated at 700° C. for 1 hour, followed by rapid cooling.

example 2

[0104] Example 2: Synthesis of a catalyst with a platinum phosphide surface layer using TKK 52 and P

[0105] A weighed amount of red phosphorus (high purity: 99.999%) was combined with a weighed amount of TKK 52 in a quartz ampoule at an atomic ratio of P:Co=1:1. The ampoule was evacuated (to 10 -5 support) and be sealed. The sample was then heated at 700° C. for 1 hour, followed by rapid cooling.

example 3

[0106] Example 3: Synthesis of a catalyst with a platinum phosphide surface layer using TKK 52 and P

[0107] A weighed amount of red phosphorus (high purity: 99.999%) was combined with a weighed amount of TKK 52 in a quartz ampoule at an atomic ratio of P:Co=1:2. The ampoule was evacuated (to 10 -5 support), and was sealed. The sample was then heated at 700° C. for 1 hour, followed by rapid cooling.

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Abstract

The present disclosure relates to a catalyst including platinum phosphide having a cubic structure, a method of making the catalyst, and a fuel cell utilizing the catalyst. The present disclosure also relates to method of making electrical power utilizing a PEMFC incorporating the catalyst. Also disclosed herein is a catalyst including a platinum complex wherein platinum is complexed with a nonmetal or metalloid. The catalyst with the platinum complex can exhibit good electrochemically active properties.

Description

[0001] This application claims priority to US Provisional Applications 61 / 159,633 and 61 / 159,628, filed March 12, 2009, and US Provisional Applications 61 / 159,843 and 61 / 159,838, filed March 13, 2009. The entire contents of these applications are incorporated herein by reference. technical field [0002] The present disclosure relates to catalysts comprising platinum phosphide having a cubic structure and methods of making the catalysts. The disclosure also relates to fuel cells containing the catalyst and methods of generating electricity. Additionally, the present disclosure relates to catalysts comprising platinum complexes wherein the platinum is complexed with a non-metal or metalloid. Background technique [0003] Proton exchange membrane fuel cells (PEMFCs) are candidates for transportation fuel cell applications, such as vehicles, as well as stationary fuel cell applications. These fuel cells require active and stable catalysts at both the anode and cathode. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/92
CPCB01J27/1856H01M4/8657H01M4/921H01M4/923H01M4/925H01M4/926H01M4/928H01M2008/1095Y02E60/50
Inventor N·克莱姆利科瓦S·麦克德米德S·坎贝尔
Owner CELLCENTRIC GMBH & CO KG
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