Hydrogen production from the decomposition of hydrogen iodide over nanosized nickel-oxide-zirconia catalysts prepared by solution-combustion techniques

作者：Singhania Amit; Krishnan Venkatesan V; Bhaskarwar Ashok N^*; Bhargava Bharat; Parvatalu Damaraju; Banerjee Satinath

来源：Catalysis Communications, 2017, 93: 5-9.

DOI：10.1016/j.catcom.2017.01.020

• Hydrogen-iodide decomposition
• Hydrogen production
• Catalytic activity
• Sulfur-iodine cycle
• Nickel-oxide-zirconia

NiO/ZrO2 prepared by solution-combustion method (SCM) showed near equilibrium conversions of hydrogen iodide to hydrogen and iodine at 500(circle)C-550 C without any performance degradation over 50 h. XRD data of the catalyst after 10 h of reaction were compared with the Same after a TPR step in H-2/Ar on another catalyst sample, to verify Ni-ex-solution. Ni is clearly visible in the XRD after TPR, although it was not observed under reaction conditions (HI/H2O/N-2), even after 10 h. Instead, the onset of monoclinic ZrO2 is observed after reaction, which was not visible after TPR.

• 出版日期2017-4