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dioxide emissions by 15%. Hydrogen fuel cells are also a potential growing market. Companies operating in this market include PolyFuel. QuantumSphere is developing fuel cell catalysts which use alternative metals such as nickel instead of the more commonly used platinum. Catalytic Solutions and Nanophase are two other companies operating in this sector. The catalysts market is estimated at $20 bn.
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SOFC). Here, the main prize will be to enable direct, high-efficiency operation with hydrocarbon fuels such as natural gas and fuel oils while the oxygen entrained in the fuel-air mixture prevents the catalysts coking up. Intriguingly, there is evidence from Japan that some existing SOFC catalysts,