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Electrodeposited Ni-based magnetic mesoporous films as smart surfaces for atomic layer deposition: an 'all-chemical' deposition approach toward 3D nanoengineered composite layers
Zhang, Jin (Universitat Autònoma de Barcelona. Departament de Física)
Quintana, A. (Universitat Autònoma de Barcelona. Departament de Física)
Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física)
Coll, Maria Dolors (Institut de Ciència de Materials de Barcelona)
Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física)
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)

Date: 2018
Abstract: Mesoporous Ni and Cu-Ni (Cu₂₀Ni₈₀ and Cu₄₅Ni₅₅ in at. %) films, showing a three-dimensional (3D) porous structure and tunable magnetic properties, are prepared by electrodeposition from aqueous surfactant solutions using micelles of P-123 triblock copolymer as structure-directing entities. Pores between 5 and 30 nm and dissimilar space arrangements (continuous interconnected networks, circular pores, corrugated mesophases) are obtained depending on the synthetic conditions. X-ray diffraction studies reveal that the Cu-Ni films have crystallized in the face-centered cubic structure, are textured, and exhibit certain degree of phase separation, particularly those with a higher Cu content. Atomic layer deposition (ALD) is used to conformally coat the mesopores of Cu₂₀Ni₈₀ film with amorphous Al₂O₃, rendering multiphase "nano-in-meso" metal-ceramic composites without compromising the ferromagnetic response of the metallic scaffold. From a technological viewpoint, these 3D nanoengineered composite films could be appealing for applications like magnetically actuated micro/nanoelectromechanical systems (MEMS/NEMS), voltage-driven magneto-electric devices, capacitors, or as protective coatings with superior strength and tribological performance.
Note: Número d'acord de subvenció EC/H2020/665919
Note: Número d'acord de subvenció EC/H2020/648454
Note: Número d'acord de subvenció MINECO/MAT2017-86357-C3-1-R
Note: Número d'acord de subvenció MINECO/SEV-2015-0496
Note: Número d'acord de subvenció MINECO/RYC-2013-12448
Note: Número d'acord de subvenció MINECO/RYC-2012-10839 and
Note: Número d'acord de subvenció AGAUR/2017/SGR-292
Note: Número d'acord de subvenció AGAUR/2017/SGR-1519
Note: Número d'acord de subvenció AGAUR/2014/SGR-1015
Rights: Tots els drets reservats
Language: Anglès.
Document: article ; recerca ; submittedVersion
Subject: Atomic layer deposition ; Magnetic properties ; Mesoporous films ; Nanoengineered composites ; Surfactant-assisted electrodeposition
Published in: ACS applied materials & interfaces, Vol. 10 (April 2018) , p. 14877-14885, ISSN 1944-8244

DOI: 10.1021/acsami.8b01626


Preprint
32 p, 1.7 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3) > SPIN-PORICS
Articles > Research articles
Articles > Published articles

 Record created 2018-04-18, last modified 2019-11-07



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