Highly reversible lithium storage in Bacillus subtilis-directed porous Co3O4 nanostructures

Hyun Woo Shim, Yun Ho Jin, Seung Deok Seo, Seung Hun Lee, Dong-Wan Kim

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

In this work, a simple, high-yield biomineralization process is reported for cobalt oxide nanostructures using Gram-positive bacteria, Bacillus subtilis, as the soft templates. Rod-type cobalt oxide is prepared at room temperature through an electrostatic interaction between the functional surface structures of the bacteria and the cobalt ions in an aqueous solution. Additionally, porous Co3O4 hollow rods are formed through a subsequent heat treatment at 300 °C. These rods have a high surface area and exhibited an excellent electrochemical performance for rechargeable Li-ion batteries. This facile, inexpensive, and environmentally benign synthesis for transition metal oxides with unique nanostructures can be used for several practical applications, such as batteries, catalysts, sensors, and supercapacitors.

Original languageEnglish
Pages (from-to)443-449
Number of pages7
JournalACS Nano
Volume5
Issue number1
DOIs
Publication statusPublished - 2011 Jan 25
Externally publishedYes

Fingerprint

Bacillus
Bacilli
Lithium
Cobalt
Nanostructures
Bacteria
cobalt oxides
rods
lithium
Biomineralization
bacteria
Oxides
electric batteries
Coulomb interactions
Surface structure
Transition metals
Heat treatment
electrochemical capacitors
Ions
Catalysts

Keywords

  • Bacillus subtilis
  • Cobalt oxide
  • Lithium-ion batteries
  • Nanostructures
  • Soft template

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Highly reversible lithium storage in Bacillus subtilis-directed porous Co3O4 nanostructures. / Shim, Hyun Woo; Jin, Yun Ho; Seo, Seung Deok; Lee, Seung Hun; Kim, Dong-Wan.

In: ACS Nano, Vol. 5, No. 1, 25.01.2011, p. 443-449.

Research output: Contribution to journalArticle

Shim, Hyun Woo ; Jin, Yun Ho ; Seo, Seung Deok ; Lee, Seung Hun ; Kim, Dong-Wan. / Highly reversible lithium storage in Bacillus subtilis-directed porous Co3O4 nanostructures. In: ACS Nano. 2011 ; Vol. 5, No. 1. pp. 443-449.
@article{c4d40224e03b497082be0c026a1aa9f8,
title = "Highly reversible lithium storage in Bacillus subtilis-directed porous Co3O4 nanostructures",
abstract = "In this work, a simple, high-yield biomineralization process is reported for cobalt oxide nanostructures using Gram-positive bacteria, Bacillus subtilis, as the soft templates. Rod-type cobalt oxide is prepared at room temperature through an electrostatic interaction between the functional surface structures of the bacteria and the cobalt ions in an aqueous solution. Additionally, porous Co3O4 hollow rods are formed through a subsequent heat treatment at 300 °C. These rods have a high surface area and exhibited an excellent electrochemical performance for rechargeable Li-ion batteries. This facile, inexpensive, and environmentally benign synthesis for transition metal oxides with unique nanostructures can be used for several practical applications, such as batteries, catalysts, sensors, and supercapacitors.",
keywords = "Bacillus subtilis, Cobalt oxide, Lithium-ion batteries, Nanostructures, Soft template",
author = "Shim, {Hyun Woo} and Jin, {Yun Ho} and Seo, {Seung Deok} and Lee, {Seung Hun} and Dong-Wan Kim",
year = "2011",
month = "1",
day = "25",
doi = "10.1021/nn1021605",
language = "English",
volume = "5",
pages = "443--449",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "1",

}

TY - JOUR

T1 - Highly reversible lithium storage in Bacillus subtilis-directed porous Co3O4 nanostructures

AU - Shim, Hyun Woo

AU - Jin, Yun Ho

AU - Seo, Seung Deok

AU - Lee, Seung Hun

AU - Kim, Dong-Wan

PY - 2011/1/25

Y1 - 2011/1/25

N2 - In this work, a simple, high-yield biomineralization process is reported for cobalt oxide nanostructures using Gram-positive bacteria, Bacillus subtilis, as the soft templates. Rod-type cobalt oxide is prepared at room temperature through an electrostatic interaction between the functional surface structures of the bacteria and the cobalt ions in an aqueous solution. Additionally, porous Co3O4 hollow rods are formed through a subsequent heat treatment at 300 °C. These rods have a high surface area and exhibited an excellent electrochemical performance for rechargeable Li-ion batteries. This facile, inexpensive, and environmentally benign synthesis for transition metal oxides with unique nanostructures can be used for several practical applications, such as batteries, catalysts, sensors, and supercapacitors.

AB - In this work, a simple, high-yield biomineralization process is reported for cobalt oxide nanostructures using Gram-positive bacteria, Bacillus subtilis, as the soft templates. Rod-type cobalt oxide is prepared at room temperature through an electrostatic interaction between the functional surface structures of the bacteria and the cobalt ions in an aqueous solution. Additionally, porous Co3O4 hollow rods are formed through a subsequent heat treatment at 300 °C. These rods have a high surface area and exhibited an excellent electrochemical performance for rechargeable Li-ion batteries. This facile, inexpensive, and environmentally benign synthesis for transition metal oxides with unique nanostructures can be used for several practical applications, such as batteries, catalysts, sensors, and supercapacitors.

KW - Bacillus subtilis

KW - Cobalt oxide

KW - Lithium-ion batteries

KW - Nanostructures

KW - Soft template

UR - http://www.scopus.com/inward/record.url?scp=79955130418&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79955130418&partnerID=8YFLogxK

U2 - 10.1021/nn1021605

DO - 10.1021/nn1021605

M3 - Article

C2 - 21155558

AN - SCOPUS:79955130418

VL - 5

SP - 443

EP - 449

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 1

ER -