New perovskite type oxides: NaATiMO6 (A=Ca or Sr; M=Nb or Ta) and their electrical properties

Rajendran, Deepthi N.; Nair, K. Ravindran; Rao, P. Prabhakar; Sibi, K.S.; Koshy, Peter; Vaidyan, V. K.

doi:10.1016/j.matlet.2007.06.022

Cited by 15 publications

(6 citation statements)

References 17 publications

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“…On the other hand, it has been reported that some perovskite alkaline earth tantalates with double-perovskite structure also show photocatalytic activity under ultraviolet light irradiation [79]. And some transition metal tantalates have simple cubic perovskite-type structure like AgTaO 3 , Ba 3 ZnTa 2 O 9 , Sr 2 GaTaO 6 [80] and NaCaTiTaO 6 , NaCaTiNbO 6 , NaSrTiTaO 6 and NaSrTiNbO 6 [81].…”

Section: Crystal Structure Engineeringmentioning

confidence: 99%

Tantalate-based Perovskite for Solar Energy Applications

Su¹,

Lang²,

Du³

et al. 2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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To realize a sustainable society in the near future, the development of clean, renewable, cheap and sustainable resources and the remediation of environmental pollutions using solar energy as the driving force would be important. During the past few decades, plenty of efforts have been focused on this area to develop solar light active materials to meet the increased energy and environmental crisis. Owning to the unique perovskite-type structure, tantalate-based semiconductors with unable chemical composition show high activities toward the conversion of solar radiation into chemical energy. Moreover, various engineering strategies, including crystal structure engineering, electronic structure engineering, surface/interface engineering, co-catalyst engineering and so on, have been developed in order to modulate the charge separation and transfer efficiency, optical absorption, band gap position and photochemical and photophysical stability, which would open a realm of new possibilities for exploring novel materials for solar energy applications.Keywords: Tantalate, photocatalysis, solar energy, perovskite . IntroductionIn view of global energy crisis and environmental pollution, the search for renewable and clean energy resources and the development of eco-friendly systems for environmental remediation have received great attention. Solar energy is the prime renewable source of energy for every life on the earth. The amount of solar energy that strikes the Earth yearly in the form of sunlight is approximately ten thousand times the total energy that is consumed on this planet [ ]. However, sunlight is diffuse and intermittent, which impedes its collecting and storage that play critical roles in the full exploitation of its potentials. As one of the most promising solutions for storing and converting solar energy, semiconductor photocatalysis has attracted much © 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. attention, since it provides an environmental benign strategy for splitting water into hydrogen and oxygen, reducing carbon dioxide into useful chemicals and fossil fuels, and completely eliminating all kinds of contaminants under the sunlight illumination under ambient conditions [ -]. Generally, the fundamental principles of semiconductor photocatalysis have been extensively reported in previous works [ ]. A photocatalytic reaction is initiated on the basis of the formation of photogenerated charges such as electrons and holes after capture of sunlight by a semiconductor. Consequently, electrons can transit from valence band VB to conduction band CB leaving behind holes in the VB. If the photogenerated electron-hole pairs' separation is maintained, the photogenerated carriers can move to the semiconductor surfaces to react with the adsorbed small molecule...

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Section: Crystal Structure Engineeringmentioning

confidence: 99%

Tantalate-based Perovskite for Solar Energy Applications

Su¹,

Lang²,

Du³

et al. 2016

Perovskite Materials - Synthesis, Characterisation, Properties, and Applications

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“…When two different atoms, B and B 0 , are placed on the B sublattice with 1:1 ordering, the unit cell doubles to yield the A 2 BB 0 O 6 double perovskite structure. Compounds that adopt such structure possess various properties, such as proton conductivity [26], large dielectric constants [15,27], long-range magnetic order [2,17,18,20,[28][29][30], ionic conductivity [14] and photocatalytic ability [3,4,6,11,13].…”

Section: Crystal Structurementioning

confidence: 99%

“…Complex tantalum oxides have been of interest for their photocatalytic activity [1][2][3][4][5][6][7][8][9][10][11][12][13], ferroelectric behavior [2,14] and their dielectric properties [15]. Advances in these areas have provided the driving force behind the search for new ternary and quaternary compounds via traditional synthetic routes.…”

Section: Introductionmentioning

confidence: 99%

Crystal growth of La2NaTaO6: A new monoclinically distorted double perovskite

Roof

Smith

Loye

2008

Journal of Crystal Growth

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“…The electrical properties of these oxides, which contain transition metals, are mainly influenced by the interaction between the transition-metal cations and the oxygen anions . Lately, layered double perovskites, specifically ReCuM 2 O 5+δ , have garnered significant scientific interest due to their rapid oxygen-ion transport and surface exchange capabilities. − Rare earth-based double perovskites have garnered significant attention across various disciplines, including electrode materials, photodetectors, and supercapacitors. − Liu et al have prepared Sr 2 NiMoO 6 double perovskites using the sol–gel method and subsequently employed them as a gas sensor . Durai et al have synthesized Al 2 NiCoO 5 nanoflakes for electrochemical sensing of atrazine .…”

Section: Introductionmentioning

confidence: 99%

Development of a Highly Sensitive Electrochemical Sensor Using Sm₂CuZrO₆ Double Perovskite as an Electrocatalyst for Determination of Risperidone Antipsychotic Drug in Tablet Samples

Basavapura Ravikumar,

Prasanna,

Shanthappa

et al. 2023

ACS Omega

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In this study, the preparation of Sm 2 CuZrO 6 double perovskites was carried out through the utilization of a sol–gel technique. The Sm 2 CuZrO 6 displayed notable conductivity, impressive electrocatalytic activity, and rapid electron transfer. The monitoring of risperidone (RIS) in tablet samples is greatly influenced by these properties. Various techniques for structural and morphological characterization were employed to confirm the formation of Sm 2 CuZrO 6 . The electrochemical properties of Sm 2 CuZrO 6 were assessed through utilization of cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and linear sweep voltammetry (LSV). Interestingly, the Sm 2 CuZrO 6 exhibited a remarkable wide linear range of 50–500 nM, along with a detection limit of 10.62 nM. Notably, it demonstrated a sensitivity of 0.4038 μA μM –1 cm –2 . The constructed sensor demonstrated noteworthy selectivity, stability, and repeatability. To assess the practicality of RIS, its performance was monitored in the tablet sample, resulting in satisfactory recoveries.

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New perovskite type oxides: NaATiMO6 (A=Ca or Sr; M=Nb or Ta) and their electrical properties

Cited by 15 publications

References 17 publications

Tantalate-based Perovskite for Solar Energy Applications

Tantalate-based Perovskite for Solar Energy Applications

Crystal growth of La2NaTaO6: A new monoclinically distorted double perovskite

Development of a Highly Sensitive Electrochemical Sensor Using Sm₂CuZrO₆ Double Perovskite as an Electrocatalyst for Determination of Risperidone Antipsychotic Drug in Tablet Samples

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New perovskite type oxides: NaATiMO6 (A=Ca or Sr; M=Nb or Ta) and their electrical properties

Cited by 15 publications

References 17 publications

Tantalate-based Perovskite for Solar Energy Applications

Tantalate-based Perovskite for Solar Energy Applications

Crystal growth of La2NaTaO6: A new monoclinically distorted double perovskite

Development of a Highly Sensitive Electrochemical Sensor Using Sm2CuZrO6 Double Perovskite as an Electrocatalyst for Determination of Risperidone Antipsychotic Drug in Tablet Samples

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Product

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Development of a Highly Sensitive Electrochemical Sensor Using Sm₂CuZrO₆ Double Perovskite as an Electrocatalyst for Determination of Risperidone Antipsychotic Drug in Tablet Samples