Volume 85 Issue 51 | p. 25 | Concentrates
Issue Date: December 17, 2007

Water-Gas Shift Mechanism Revealed

Department: Science & Technology

Brookhaven National Laboratory scientists have uncovered key pieces of the mechanism that drives the water-gas shift (WGS) reaction on gold/metal-oxide catalysts (Science 2007, 318, 1757). Critical to industrial H2 production, the WGS reaction (H2O + CO — H2 + CO2) is used to remove the CO impurity from H2 that's generated during reforming of crude oil, coal, and other materials. Conventional WGS catalysts based on oxides of copper or iron-chromium are air sensitive and . . .

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