Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor

This paper describes the fabrication of kaolinite (Al<sub>2</sub>O<sub>3</sub>-2SiO<sub>2</sub>-2H<sub>2</sub>O) spherical bulbs by slip casting. The bisque-fired parts present a porosity of about 30% with submicron porosity confirmed by scanning elect...

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Main Authors: Sandrine Ricote, William Grover Coors
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/4/1519
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author Sandrine Ricote
William Grover Coors
author_facet Sandrine Ricote
William Grover Coors
author_sort Sandrine Ricote
collection DOAJ
description This paper describes the fabrication of kaolinite (Al<sub>2</sub>O<sub>3</sub>-2SiO<sub>2</sub>-2H<sub>2</sub>O) spherical bulbs by slip casting. The bisque-fired parts present a porosity of about 30% with submicron porosity confirmed by scanning electron microscopy. In addition, plate-like grains with channels were observed. After nickel infiltration of the specimens, nanosized Ni particles covered the surfaces of the channels of these grains. Permeation tests in 5% H<sub>2</sub> at 400 and 600 °C resulted in fluxes between 0.05 and 0.06 mol·m<sup>−2</sup>·s<sup>−1</sup> at a pressure gradient of 200 MPa·m<sup>−1</sup>. Potential applications of these specimens include supports for hydrocarbon (namely ethanol) steam reforming.
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spelling doaj.art-ae9a6d9912ac40fd96750fc36f27c6bb2023-11-16T21:50:52ZengMDPI AGMaterials1996-19442023-02-01164151910.3390/ma16041519Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel ReactorSandrine Ricote0William Grover Coors1Department of Mechanical Engineering, Colorado School of Mines, Golden, CO 80401, USADepartment of Mechanical Engineering, Colorado School of Mines, Golden, CO 80401, USAThis paper describes the fabrication of kaolinite (Al<sub>2</sub>O<sub>3</sub>-2SiO<sub>2</sub>-2H<sub>2</sub>O) spherical bulbs by slip casting. The bisque-fired parts present a porosity of about 30% with submicron porosity confirmed by scanning electron microscopy. In addition, plate-like grains with channels were observed. After nickel infiltration of the specimens, nanosized Ni particles covered the surfaces of the channels of these grains. Permeation tests in 5% H<sub>2</sub> at 400 and 600 °C resulted in fluxes between 0.05 and 0.06 mol·m<sup>−2</sup>·s<sup>−1</sup> at a pressure gradient of 200 MPa·m<sup>−1</sup>. Potential applications of these specimens include supports for hydrocarbon (namely ethanol) steam reforming.https://www.mdpi.com/1996-1944/16/4/1519porous ceramickaoliniteslip castingceramic fabricationsteam reforminghydrogen production
spellingShingle Sandrine Ricote
William Grover Coors
Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor
Materials
porous ceramic
kaolinite
slip casting
ceramic fabrication
steam reforming
hydrogen production
title Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor
title_full Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor
title_fullStr Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor
title_full_unstemmed Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor
title_short Ni-Infiltrated Spherical Porcelain Support as Potential Steam Reforming Microchannel Reactor
title_sort ni infiltrated spherical porcelain support as potential steam reforming microchannel reactor
topic porous ceramic
kaolinite
slip casting
ceramic fabrication
steam reforming
hydrogen production
url https://www.mdpi.com/1996-1944/16/4/1519
work_keys_str_mv AT sandrinericote niinfiltratedsphericalporcelainsupportaspotentialsteamreformingmicrochannelreactor
AT williamgrovercoors niinfiltratedsphericalporcelainsupportaspotentialsteamreformingmicrochannelreactor