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With this contribution, we reply to the Comment by Tkach et al. on our publication in J. Mater. Chem. A, 2018, 6, 16101. We provide proper evidence to clarify all these queries either by providing a further explanation or through additional experimental results. From the ferroelectric characteristics and dielectric studies, we demonstrate that the remnant polarization and dielectric constant of BaTiO3 are varied with the aluminum (Al) dopant concentration and also noticed that the BaTiO3 with 2% Al dopant concentration is an optimized sample (compared to the others) to attain a high remnant polarisation and dielectric constant. Besides, the other material data of the samples are further analyzed and the presence of Al dopant content is confirmed in the BaTiO3. [ABSTRACT FROM AUTHOR]

The facile and cost-effective fabrication of hybrid nanostructures comprised of hollow mixed metallic chalcogenides has attracted growing interest in the development of high-performance energy storage devices. Herein, multi-component (nickel-cobalt-copper-sulfides/selenides (NCCS/NCCSe)) hollow nanocubes (HNCs) are prepared via a single-step sulfurization/selenization process. The NCCS material shows interior HNCs, and the NCCSe material exhibits slightly formed porous cubes. Both the prepared materials demonstrate higher charge storage performance than the precursor NCC NCs owing to the improved surface morphology and addition of sulfur and selenium ions. Particularly, the NCCS HNCs electrode reveals superior specific capacity (capacitance) (70.32 mAh g -1 (666.20 F g -1 ) at 5 mA cm -2 ) along with excellent cycling stability of 108.6% even after 10 000 cycles. Interestingly, the electrode delivers a good rate capability of 83.5% at a high current density of 20 mA cm -2 . The feasibility of the battery-type NCCS HNCs as a positive electrode is explored by constructing an aqueous electrochemical hybrid capacitor (AEHC). The AEHC exhibits maximum energy and power densities of 23.15 Wh kg -1 and 7899.08 W kg -1 , respectively. Remarkably, it demonstrates superior long-life cycling stability even after 10 000 cycles (120.6% retention). The suitability of AEHC for practical application is also tested by driving electronic devices., (© 2022 Wiley-VCH GmbH.)