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Production of hydrogen from ethanol with high hydrogen yield and high energy efficiency was performed by using an electrochemical catalytic reforming (ECR) approach over the Ni-based catalyst. ECR was carried out in the fixed-bed continuous flow reactor, where an ac electronic current passed through the catalyst. It was found that the performance of the ethanol reforming not only depended on the reforming temperature, but also was remarkably enhanced by the current through the catalyst. In particular, the hydrogen yield and its selectivity significantly increased with an increase in the current in ECR. The promoting effects of the current on the decomposition of ethanol were also studied via the homogeneous experiments and low-pressure time-of-flight measurements. The alteration of the catalyst after the ECR processes was investigated via X-ray diffraction, transmission electron microscopy, and Brunauer−Emmett−Teller measurements. The mechanism of the electrochemical catalytic reforming of ethanol was discussed on the basis of the above investigation.

A novel approach to produce hydrogen from bio-oil was obtained with high carbon conversion (>90%) and hydrogen yield (>90%) at T<500 degrees C by using the electrochemical catalytic reforming of oxygenated-organic compounds over 18%NiO/Al(2)O(3) reforming catalyst; thermal electrons play important promoting roles in the decomposition and reforming of the oxygenated-organic compounds in the bio-oil.