Correction to: Catalytic Decomposition of Hydrogen-Iodide Over Nanocrystalline Ceria Promoted by Transition Metal Oxides for Hydrogen Production in Sulfur–Iodine Thermo-Chemical Cycle

Autor:	Parvatalu Damaraju, Amit Singhania, Satinath Banerjee, Ashok N. Bhaskarwar, Bharat Bhargava
Rok vydání:	2018
Předmět:	Hydrogen Inorganic chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences law.invention chemistry.chemical_compound symbols.namesake chemistry Transition metal law Specific surface area symbols Hydrogen iodide Calcination 0210 nano-technology Raman spectroscopy Hydrogen production Nuclear chemistry
Zdroj:	Catalysis Letters. 148:1423-1423
ISSN:	1572-879X 1011-372X
DOI:	10.1007/s10562-018-2345-0
Popis:	In this study, CeO2, and CeO2-M (M=Fe, Co, and Ni) catalysts were prepared by sol–gel method for catalytic decomposition of hydrogen-iodide in sulfur–iodine (SI) cycle. These catalysts sample were characterized by Brunauer–Emmett–Teller (BET), X-ray diffraction (XRD), inductively coupled plasma-atomic emission spectroscopy (ICP-AES), transmission electron microscopy (TEM), and Raman spectroscopy. The powder XRD, and TEM results gave 4–5 nm average size particles of CeO2–Ni-300 sample. BET and Raman results showed a high specific surface area, and large number of oxygen vacancy in the Ni sample. The hydrogen-iodide decomposition experiments were carried out in the temperature range of 400–550 °C in a quartz-tube vertical fixed-bed reactor with 55 wt% HI feed over prepared CeO2-M catalysts using nitrogen as a carrier gas at atmospheric pressure. The experimental hydrogen-iodide decomposition results showed high catalytic activity of Ni sample as compared to Co and Fe samples. They followed the catalytic order: CeO2–Ni-300 > CeO2–Co-300 > CeO2–Fe-300 > CeO2-300. The effect of calcination temperatures (300, 500, and 700 °C) of CeO2–Ni sample (during sol–gel method) on hydrogen-iodide conversion was also studied and showed that the following catalytic order: CeO2–Ni-300 > CeO2–Ni-500 > CeO2–Ni-700. With increase in calcination temperatures the conversion decreased. CeO2–Ni-300 sample also gave a reasonable stability for time-on-stream of about 5 h. So, based on these results, CeO2–Ni-300 is an attractive candidate which has potential for producing large quantity of hydrogen in SI cycle.
Databáze:	OpenAIRE
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