Charge transport and electrochemical properties of colloidal greigite (Fe<inf>3</inf>S<inf>4</inf>) nanoplatelets

Andrea Paolella; Chandramohan George; Mauro Povia; Yang Zhang; Roman Krahne; Marti Gich; Alessandro Genovese; Andrea Falqui; Maria Longobardi; Pablo Guardia; Teresa Pellegrino; Liberato Manna

doi:10.1021/cm201531h

Charge transport and electrochemical properties of colloidal greigite (Fe<inf>3</inf>S<inf>4</inf>) nanoplatelets

Andrea Paolella, Chandramohan George, Mauro Povia, Yang Zhang, Roman Krahne, Marti Gich, Alessandro Genovese, Andrea Falqui, Maria Longobardi, Pablo Guardia, Teresa Pellegrino, Liberato Manna

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

Room-temperature superparamagnetic greigite nanoplatelets were synthesized using 3-methyl catechol as growth moderator and phase-control agent, in the presence of sulfur, thiosulfate, octadecylamine, and Fe2+. Dense films of nanoplatelets showed ohmic behavior in the 10-300 K range. In as-deposited films the resistivity increased with decreasing temperature (as for semiconductors), while in hydrazine-treated films it decreased with decreasing temperature, as for metals. The electrochemical properties of as-prepared greigite nanoplatelets upon lithiation/de-lithiation have been followed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrodes containing greigite nanoplatelets were found to be active in the lithiation/delithiation processes. © 2011 American Chemical Society.

Original language	English
Pages (from-to)	3762-3768
Journal	Chemistry of Materials
Volume	23
Issue number	16
DOIs	https://doi.org/10.1021/cm201531h
Publication status	Published - 23 Aug 2011

Keywords

batteries
charge transport
greigite
iron sulfides
Nanocrystals

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10.1021/cm201531h

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@article{43d891d3a7954b2380de5362e9fd27b8,

title = "Charge transport and electrochemical properties of colloidal greigite (Fe3S4) nanoplatelets",

abstract = "Room-temperature superparamagnetic greigite nanoplatelets were synthesized using 3-methyl catechol as growth moderator and phase-control agent, in the presence of sulfur, thiosulfate, octadecylamine, and Fe2+. Dense films of nanoplatelets showed ohmic behavior in the 10-300 K range. In as-deposited films the resistivity increased with decreasing temperature (as for semiconductors), while in hydrazine-treated films it decreased with decreasing temperature, as for metals. The electrochemical properties of as-prepared greigite nanoplatelets upon lithiation/de-lithiation have been followed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrodes containing greigite nanoplatelets were found to be active in the lithiation/delithiation processes. {\textcopyright} 2011 American Chemical Society.",

keywords = "batteries, charge transport, greigite, iron sulfides, Nanocrystals",

author = "Andrea Paolella and Chandramohan George and Mauro Povia and Yang Zhang and Roman Krahne and Marti Gich and Alessandro Genovese and Andrea Falqui and Maria Longobardi and Pablo Guardia and Teresa Pellegrino and Liberato Manna",

year = "2011",

month = aug,

day = "23",

doi = "10.1021/cm201531h",

language = "English",

volume = "23",

pages = "3762--3768",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Charge transport and electrochemical properties of colloidal greigite (Fe3S4) nanoplatelets

AU - Paolella, Andrea

AU - George, Chandramohan

AU - Povia, Mauro

AU - Zhang, Yang

AU - Krahne, Roman

AU - Gich, Marti

AU - Genovese, Alessandro

AU - Falqui, Andrea

AU - Longobardi, Maria

AU - Guardia, Pablo

AU - Pellegrino, Teresa

AU - Manna, Liberato

PY - 2011/8/23

Y1 - 2011/8/23

N2 - Room-temperature superparamagnetic greigite nanoplatelets were synthesized using 3-methyl catechol as growth moderator and phase-control agent, in the presence of sulfur, thiosulfate, octadecylamine, and Fe2+. Dense films of nanoplatelets showed ohmic behavior in the 10-300 K range. In as-deposited films the resistivity increased with decreasing temperature (as for semiconductors), while in hydrazine-treated films it decreased with decreasing temperature, as for metals. The electrochemical properties of as-prepared greigite nanoplatelets upon lithiation/de-lithiation have been followed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrodes containing greigite nanoplatelets were found to be active in the lithiation/delithiation processes. © 2011 American Chemical Society.

AB - Room-temperature superparamagnetic greigite nanoplatelets were synthesized using 3-methyl catechol as growth moderator and phase-control agent, in the presence of sulfur, thiosulfate, octadecylamine, and Fe2+. Dense films of nanoplatelets showed ohmic behavior in the 10-300 K range. In as-deposited films the resistivity increased with decreasing temperature (as for semiconductors), while in hydrazine-treated films it decreased with decreasing temperature, as for metals. The electrochemical properties of as-prepared greigite nanoplatelets upon lithiation/de-lithiation have been followed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electrodes containing greigite nanoplatelets were found to be active in the lithiation/delithiation processes. © 2011 American Chemical Society.

KW - batteries

KW - charge transport

KW - greigite

KW - iron sulfides

KW - Nanocrystals

U2 - 10.1021/cm201531h

DO - 10.1021/cm201531h

M3 - Article

SN - 0897-4756

VL - 23

SP - 3762

EP - 3768

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 16

ER -

Charge transport and electrochemical properties of colloidal greigite (Fe<inf>3</inf>S<inf>4</inf>) nanoplatelets

Abstract

Keywords

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