Metal-oxide interactions for infiltrated Ni nanoparticles on A-site deficient LaxSr1 − 3x/2TiO3

Jianing Hui; Dragos Neagu; David N. Miller; Xiangling Yue; Chengsheng Ni; John T.S. Irvine

doi:10.1016/j.ssi.2017.12.016

Metal-oxide interactions for infiltrated Ni nanoparticles on A-site deficient La_xSr_{1 − 3x/2}TiO₃

Jianing Hui, Dragos Neagu, David N. Miller, Xiangling Yue, Chengsheng Ni, John T.S. Irvine

Research output: Contribution to journal › Article › peer-review

Abstract

Enhancing the stability of introduced metal catalysts on oxide surfaces is a major issue for infiltrated anodes in Solid Oxide Cells (SOC) and other related catalysis field. Stoichiometric SrTiO₃ (STO) and A-site cation deficient La_xSr_{1 − 3x/2}TiO₃ (LST) were compared to investigate the influence of stoichiometry upon the contact between metal and oxide, in order to improve the bonding of catalyst and substrate. Optimization of oxidizing and reducing temperatures for Ni infiltration processes was performed to get good nanoparticles distribution on the perovskite surface. Thermogravimetry (TG) and X-ray diffraction (XRD) analysis showed the formation of NiO, Ni after oxidation and reduction, respectively. Energy Dispersive Spectroscopy (EDS) on a Transmission Electron Microscopy (TEM) was employed to characterize the nickel nanoparticles on the LST surface. No obvious elemental transfer happened between Ni and LST. The TEM images showed Ni nanoparticles bonded well to the A-site deficient perovskite with large contact area. TG analysis in reducing atmosphere indicates interactions between metal-oxide interactions in deficient samples. This may improve the Ni distribution on perovskite surface and further control the growth of Ni particles when heated at extreme temperature.

Original language	English
Pages (from-to)	126-130
Number of pages	5
Journal	Solid State Ionics
Volume	315
Early online date	15 Dec 2017
DOIs	https://doi.org/10.1016/j.ssi.2017.12.016
Publication status	Published - Feb 2018

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10.1016/j.ssi.2017.12.016

Hui_2017_SSI_Metal-oxideinteractions_AAM
© 2017 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.ssi.2017.12.016
Accepted author manuscript, 1.48 MBLicence: CC BY-NC-ND

Energy Materials Discovery: Energy Materials Discovery Characterisation and Application
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Zhou, W. (CoI)
EPSRC
7/01/13 → 6/01/18
Project: Standard
Royal Society Wolfson Merit Award: Closing the Carbon Cycle with Solid State Electrochemistry
Irvine, J. T. S. (PI)
The Royal Society
1/08/12 → 31/07/17
Project: Standard

Cite this

@article{7cbe84270e8f475da52335d530309a1b,

title = "Metal-oxide interactions for infiltrated Ni nanoparticles on A-site deficient LaxSr1 − 3x/2TiO3",

abstract = "Enhancing the stability of introduced metal catalysts on oxide surfaces is a major issue for infiltrated anodes in Solid Oxide Cells (SOC) and other related catalysis field. Stoichiometric SrTiO3 (STO) and A-site cation deficient LaxSr1 − 3x/2TiO3 (LST) were compared to investigate the influence of stoichiometry upon the contact between metal and oxide, in order to improve the bonding of catalyst and substrate. Optimization of oxidizing and reducing temperatures for Ni infiltration processes was performed to get good nanoparticles distribution on the perovskite surface. Thermogravimetry (TG) and X-ray diffraction (XRD) analysis showed the formation of NiO, Ni after oxidation and reduction, respectively. Energy Dispersive Spectroscopy (EDS) on a Transmission Electron Microscopy (TEM) was employed to characterize the nickel nanoparticles on the LST surface. No obvious elemental transfer happened between Ni and LST. The TEM images showed Ni nanoparticles bonded well to the A-site deficient perovskite with large contact area. TG analysis in reducing atmosphere indicates interactions between metal-oxide interactions in deficient samples. This may improve the Ni distribution on perovskite surface and further control the growth of Ni particles when heated at extreme temperature.",

author = "Jianing Hui and Dragos Neagu and Miller, {David N.} and Xiangling Yue and Chengsheng Ni and Irvine, {John T.S.}",

note = "The authors would like to thank EPSRC Platform (Grant EP/K015540/1) and the Royal Society for Wolfson Merit Award (WRMA 2012/R2) for funding. We also acknowledge support from China Scholarship Council (No. 201406690029).",

year = "2018",

month = feb,

doi = "10.1016/j.ssi.2017.12.016",

language = "English",

volume = "315",

pages = "126--130",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier",

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T1 - Metal-oxide interactions for infiltrated Ni nanoparticles on A-site deficient LaxSr1 − 3x/2TiO3

AU - Hui, Jianing

AU - Neagu, Dragos

AU - Miller, David N.

AU - Yue, Xiangling

AU - Ni, Chengsheng

AU - Irvine, John T.S.

N1 - The authors would like to thank EPSRC Platform (Grant EP/K015540/1) and the Royal Society for Wolfson Merit Award (WRMA 2012/R2) for funding. We also acknowledge support from China Scholarship Council (No. 201406690029).

PY - 2018/2

Y1 - 2018/2

N2 - Enhancing the stability of introduced metal catalysts on oxide surfaces is a major issue for infiltrated anodes in Solid Oxide Cells (SOC) and other related catalysis field. Stoichiometric SrTiO3 (STO) and A-site cation deficient LaxSr1 − 3x/2TiO3 (LST) were compared to investigate the influence of stoichiometry upon the contact between metal and oxide, in order to improve the bonding of catalyst and substrate. Optimization of oxidizing and reducing temperatures for Ni infiltration processes was performed to get good nanoparticles distribution on the perovskite surface. Thermogravimetry (TG) and X-ray diffraction (XRD) analysis showed the formation of NiO, Ni after oxidation and reduction, respectively. Energy Dispersive Spectroscopy (EDS) on a Transmission Electron Microscopy (TEM) was employed to characterize the nickel nanoparticles on the LST surface. No obvious elemental transfer happened between Ni and LST. The TEM images showed Ni nanoparticles bonded well to the A-site deficient perovskite with large contact area. TG analysis in reducing atmosphere indicates interactions between metal-oxide interactions in deficient samples. This may improve the Ni distribution on perovskite surface and further control the growth of Ni particles when heated at extreme temperature.

AB - Enhancing the stability of introduced metal catalysts on oxide surfaces is a major issue for infiltrated anodes in Solid Oxide Cells (SOC) and other related catalysis field. Stoichiometric SrTiO3 (STO) and A-site cation deficient LaxSr1 − 3x/2TiO3 (LST) were compared to investigate the influence of stoichiometry upon the contact between metal and oxide, in order to improve the bonding of catalyst and substrate. Optimization of oxidizing and reducing temperatures for Ni infiltration processes was performed to get good nanoparticles distribution on the perovskite surface. Thermogravimetry (TG) and X-ray diffraction (XRD) analysis showed the formation of NiO, Ni after oxidation and reduction, respectively. Energy Dispersive Spectroscopy (EDS) on a Transmission Electron Microscopy (TEM) was employed to characterize the nickel nanoparticles on the LST surface. No obvious elemental transfer happened between Ni and LST. The TEM images showed Ni nanoparticles bonded well to the A-site deficient perovskite with large contact area. TG analysis in reducing atmosphere indicates interactions between metal-oxide interactions in deficient samples. This may improve the Ni distribution on perovskite surface and further control the growth of Ni particles when heated at extreme temperature.

U2 - 10.1016/j.ssi.2017.12.016

DO - 10.1016/j.ssi.2017.12.016

M3 - Article

SN - 0167-2738

VL - 315

SP - 126

EP - 130

JO - Solid State Ionics

JF - Solid State Ionics

ER -

Metal-oxide interactions for infiltrated Ni nanoparticles on A-site deficient LaxSr1 − 3x/2TiO3

Abstract

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Projects

Energy Materials Discovery: Energy Materials Discovery Characterisation and Application

Royal Society Wolfson Merit Award: Closing the Carbon Cycle with Solid State Electrochemistry

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Metal-oxide interactions for infiltrated Ni nanoparticles on A-site deficient La_xSr_{1 − 3x/2}TiO₃