title: Morphology-Dependent Electrochemical Properties of CuS Hierarchical Superstructures.
abstract: Hierarchical superstructures formed by self-assembled nanoparticles exhibit interesting electrochemical properties that can potentially be exploited in Li-ion batteries (LIBs) as possible electrode materials. In this work, we tested two different morphologies of CuS superstructures for electrodes, namely, tubular dandelion-like and ball-like assemblies, both of which are composed of similar small covellite nanoparticles. These two CuS morphologies are characterized by their markedly different electrochemical performances, suggesting that their complex structures/morphologies influence the electrochemical properties. At 1.12 A g(-1), the cells made with CuS tubular structures delivered about 420 mAh g(-1), and at 0.56 A g(-1), the capacity was as high as about 500 mAh g(-1) with good capacity retention. Their ease of preparation and processing, together with good electrochemical performance, make CuS tubular dandelion-like clusters attractive for developing low-cost LIBs based on conversion reactions.
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy.|Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Bolvar 29 Bahman, Tabriz, Iran.
authors: Zahra
authors: Z
authors: Hosseinpour
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy.
authors: Alice
authors: A
authors: Scarpellini
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy.
authors: Sharif
authors: S
authors: Najafishirtari
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy.
authors: Sergio
authors: S
authors: Marras
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy.
authors: Massimo
authors: M
authors: Colombo
authors: Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Bolvar 29 Bahman, Tabriz, Iran.
authors: Abdolali
authors: A
authors: Alemi
authors: Institute for Manufacturing, Department of Engineering, University of Cambridge, 17 Charles Babbage Road, CB3 0FS, Cambridge, United Kingdom.
authors: Michaël
authors: M
authors: De Volder
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy. gc495@cam.ac.uk.|Institute for Manufacturing, Department of Engineering, University of Cambridge, 17 Charles Babbage Road, CB3 0FS, Cambridge, United Kingdom. gc495@cam.ac.uk.
authors: Chandramohan
authors: C
authors: George
authors: Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genoa, Italy. vladimir.lesnyak@chemie.tu-dresden.de.|Physical Chemistry, TU Dresden, Bergstr. 66b, 01062, Dresden, Germany. vladimir.lesnyak@chemie.tu-dresden.de.
authors: Vladimir
authors: V
authors: Lesnyak
keywords: colloidal synthesis; covellite; electrochemistry; lithium-ion batteries; nanostructures