Low-cost and Low-temperature Nanocatalysts for the Preferential Oxidation of CO: Towards Sustainable Implementation of Polymer Electrolyte Fuel Cells
DescriptionThe low-temperature catalytic preferential oxidation (PrOx) of carbon monoxide (CO) is an important reaction, with strongest implication towards the tandem utilization in polymer electrolyte membrane fuel cells (PEMFC). The target is to selectively oxidise CO in the presence of H2-rich stream, reducing the latter concentration from 1% to below the PEMFC threshold limit <100 ppm. This ensures the preservation of the Pt electrode, which is strongly susceptible to CO poisoning. Current PrOx catalysts consist predominantly of precious metals-type, such as Au, Pt, etc. Despite the high cost of these catalysts, they do not fully comply with the requirement and operation of PEMFC. Hence the proposal seeks to develop novel low-cost and low-temperature PrOx nanocatalysts with high activity and selectivity through the designing of transition metals active sites. The outcome of the proposal bears strong implications towards resolving some of the biggest bottlenecks in the foreseeable mass-implementation of PEMFC.
|Effective start/end date
|1/05/11 → 6/12/13