| 초록 |
Hydrogen has long been considered as a sustainable and clean energy carrier. For hydrogen to be useful as an energy carrier in conjunction with renewable energy, a safe and economic hydrogen storage technology is particularly needed. In this context, chemical hydrogen storage has attracted significant attention to address the issue. Formic acid (FA) is an attractive liquid hydrogen storage material because it has a high volumetric hydrogen storage density (53 g/L) with easy transportability. In addition, hydrogen can be released from FA on demand even at room temperature with an appropriate catalyst. However, FA decomposition can also produce carbon monoxide via dehydration reaction which is detrimental to a polymer membrane fuel cell, thus requiring a highly active and selective catalyst. We present an alloyed PdNi catalyst for FA dehydrogenation. Results showed that both activity and selectivity of FA dehydrogenation over PdNi catalyst was found to be highly dependent on Ni content and temperature.
|
