DataVXACS Applied Energy MaterialsPaper
journal article·2021-03-22

Investigating Local Structure of Ion-Implanted (Ni2+) and Thermally Annealed Rock Salt CoO Film by EXAFS Simulation Using Evolutionary Algorithm

Latif U. Khan, Naila Jabeen, Isma Jabbar, Sadaf Jamil, Afia Kanwal, Zareen Akhter, Muhammad Usman, Muhammad Z. Abid, Messaoud Harfouche

ACS Applied Energy Materials· Volume 4· Issue 3
Publisher page
Source abstract

Abstract

The CoO film deposited on the surface of F-doped SnO2 (FTO) conductive glass was prepared via drop casting technique. The effects of Ni2+-ion implantation at 700 keV energy and postannealing in vacuum at 450 °C temperature on the local structure of the CoO film was systematically explored. The XAFS study revealed the substitution of octahedral Co2+ by Ni2+ ion (Co1–xNixO) as a result of ion implantation. The existence of defects in local structure around the octahedral Co for the Co1–xNixO film after thermal annealing in vacuum was demonstrated by the theoretical EXAFS [χ(k)] simulation via evolutionary algorithm implemented in reverse Monte Carlo method in rationale with EXAFS fitting. Nevertheless, the cubic rock salt structure for the Co1–xNixO was conserved, corroborated through XRD patterns, suggesting a remarkable candidate for application as an electrocatalyst in fuel cells.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glassesBiomaterialsCatalysis & surfacesMaterials processing

OpenAlex topics: Advancements in Solid Oxide Fuel Cells · ZnO doping and properties · Catalytic Processes in Materials Science

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Synchrotron-Light for Experimental Science and Applications in the Middle East (SESAME) P. O. Box 7, Allan 19252, Jordan

Nanosciences and Technology Division, National Centre for Physics, QAU Campus, Shahdra Valley Road, P. O. Box 2141, Islamabad 44000, Pakistan

Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan

Experimental Physics Department, National Centre for Physics, QAU Campus, Shahdra Valley Road, P. O. Box 2141, Islamabad 44000, Pakistan

U.S.−Pakistan Center for Advanced Studies in Energy, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan

Funding

National Centre for Physics, Islamabad, Pakistan

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