{"title":"Temperature-mediated phase evolution of perovskite-type CuZrO3 nanoparticles","authors":"S. J. J. Kay, N. Chidhambaram","doi":"10.1080/01411594.2023.2200946","DOIUrl":null,"url":null,"abstract":"ABSTRACT Herein, we report the phase evolution of perovskite-type copper zirconate nanoparticles synthesized via the coprecipitation method. The XRD investigations confirm the dominant orthorhombic CuZrO3 phase formation at 700 °C along with frail tetragonal ZrO2 and monoclinic CuO phases. XRD analysis confirms the presence of orthorhombic perovskite type CuZrO3 in the sample annealed at 700 °C with cell parameters: a = 6.4552 Å, b = 7.4008 Å, and c = 8.4013 Å whose crystallite sizes is 54 nm. Higher calcination temperatures (above 700 °C) induce the crystallinity deterioration in the CuZrO3 phase. The XPS studies substantiate the chemical state of constituent elements present in the sample annealed at 700 °C. The chemical bonding and optical features of the samples were probed using FTIR and UV-Vis-NIR spectroscopy, respectively. The optical bandgap energies for the synthesized samples that were annealed at various temperatures ranged from 3.36–3.08 eV.","PeriodicalId":19881,"journal":{"name":"Phase Transitions","volume":"96 1","pages":"424 - 433"},"PeriodicalIF":1.3000,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Phase Transitions","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/01411594.2023.2200946","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 2
Abstract
ABSTRACT Herein, we report the phase evolution of perovskite-type copper zirconate nanoparticles synthesized via the coprecipitation method. The XRD investigations confirm the dominant orthorhombic CuZrO3 phase formation at 700 °C along with frail tetragonal ZrO2 and monoclinic CuO phases. XRD analysis confirms the presence of orthorhombic perovskite type CuZrO3 in the sample annealed at 700 °C with cell parameters: a = 6.4552 Å, b = 7.4008 Å, and c = 8.4013 Å whose crystallite sizes is 54 nm. Higher calcination temperatures (above 700 °C) induce the crystallinity deterioration in the CuZrO3 phase. The XPS studies substantiate the chemical state of constituent elements present in the sample annealed at 700 °C. The chemical bonding and optical features of the samples were probed using FTIR and UV-Vis-NIR spectroscopy, respectively. The optical bandgap energies for the synthesized samples that were annealed at various temperatures ranged from 3.36–3.08 eV.
期刊介绍：
Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include:
-structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.)
-geophysical phase transitions
-metal-insulator phase transitions
-superconducting and superfluid transitions
-magnetic phase transitions
-critical phenomena and physical properties at phase transitions
-liquid crystals
-technological applications of phase transitions
-quantum phase transitions
Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.
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