A robust, modular approach to produce graphene-MO X multilayer foams as electrodes for Li-ion batteries
Artikel i vetenskaplig tidskrift, 2019

Major breakthroughs in batteries would require the development of new composite electrode materials, with a precisely controlled nanoscale architecture. However, composites used for energy storage are typically a disordered bulk mixture of different materials, or simple coatings of one material onto another. We demonstrate here a new technique to create complex hierarchical electrodes made of multilayers of vertically aligned nanowalls of hematite (Fe 2 O 3 ) alternated with horizontal spacers of reduced graphene oxide (RGO), all deposited on a 3D, conductive graphene foam. The RGO nanosheets act as porous spacers, current collectors and protection against delamination of the hematite. The multilayer composite, formed by up to 7 different layers, can be used with no further processing as an anode in Li-ion batteries, with a specific capacity of up to 1175 μA h cm -2 and a capacity retention of 84% after 1000 cycles. Our coating strategy gives improved cyclability and rate capacity compared to conventional bulk materials. Our production method is ideally suited to assemble an arbitrary number of organic-inorganic materials in an arbitrary number of layers.


Massimo Gazzano

Chalmers, Industri- och materialvetenskap

Zhenyuan Xia

Chalmers, Industri- och materialvetenskap

Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR)

Meganne Christian

Consiglo Nazionale Delle Richerche

Catia Arbizzani

Universita di Bologna

V. Morandi

Consiglo Nazionale Delle Richerche

Vanesa Quintano

Chalmers, Industri- och materialvetenskap

Alessandro Kovtun

Chalmers, Industri- och materialvetenskap

Vincenzo Palermo

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Istituto per la Sintesi Organica e la Fotoreattività (ISOF-CNR)


2040-3364 (ISSN)

Vol. 11 12 5265-5273


Fysikalisk kemi

Textil-, gummi- och polymermaterial


Kompositmaterial och -teknik

Den kondenserade materiens fysik







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