Research Article

Hydrogen Storage and Release Properties of a Cu-Added Fe/YSZ Redox System

Table 1

The quantities of hydrogen consumed and evolved in the TPR/O test during three repeated cycles.

SampleMaxa1st Redb1st Oxic2nd Red2nd Oxi3rd Red3rd Oxi

Fe/YSZ-110.3610.168.899.078.9310.238.84
Fe/YSZ-29.516.418.685.627.364.65
Fe/YSZ-39.868.469.358.259.238.87
Fe/YSZ-48.056.129.235.967.656.97

Quantity of hydrogen consumed when 1 g of sample was theoretically reduced in the first reduction (mmol g−1-sample).
Quantity of hydrogen consumed during the reduction step (mmol g−1-sample).
Quantity of hydrogen evolved during water-splitting step (mmol g−1-sample).