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- W2081803313 abstract "Dimethoxymethane (DMM) is nontoxic and of high hydrogen content and may be used as a H2 storage material for small H2 sources. Steam reforming of DMM requires a bifunctional catalyst composed of an acidic component and a traditional copper catalyst, on which DMM is hydrolyzed on the acidic sites to methanol and formaldehyde, which are then further reformed to H2 and CO2 on metallic copper sites. In this work, samples of niobium phosphate with high surface areas were synthesized, characterized, and tested for the hydrolysis of DMM and used as acidic components for the reforming of DMM to produce H2. The structure and surface areas of these samples were characterized, and the activity for the hydrolysis of DMM was correlated with the surface acidities. It was found that all of the niobium phosphate samples exhibited high activity for the hydrolysis of DMM. The one with a high surface area (394 m2/g) was highly acidic with mainly Brønsted acid sites and thus was the most active for the hydrolysis of DMM among the niobium samples studied in this work. Mixing the niobium phosphate with CuZnO/Al2O3 did not affect the activity of CuZnO/Al2O3 for the reforming of methanol. The activity and selectivity to H2 were low for the steam reforming of DMM over traditional CuZnO/Al2O3 alone. Mechanically mixing niobium phosphate with CuZnO/Al2O3 greatly enhanced the conversion of DMM (e.g., 100% at 493 K) with high selectivity to H2. This indicates that niobium phosphate is an effective acidic component for the hydrolysis of DMM and can be used with CuZnO/Al2O3 for reforming DMM to produce H2." @default.
- W2081803313 created "2016-06-24" @default.
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- W2081803313 date "2006-11-01" @default.
- W2081803313 modified "2023-10-17" @default.
- W2081803313 title "Surface acidity of niobium phosphate and steam reforming of dimethoxymethane over CuZnO/Al2O3–NbP complex catalysts" @default.
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- W2081803313 doi "https://doi.org/10.1016/j.jcat.2006.07.027" @default.
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