Functionalization of carbon nanotube AFM probes using tip-activated gases

Stanislaus S. Wong; Adam T. Woolley; Ernesto Joselevich; Charles M. Lieber

doi:10.1016/S0009-2614(99)00488-1

Functionalization of carbon nanotube AFM probes using tip-activated gases

Stanislaus S. Wong
, Adam T. Woolley
, Ernesto Joselevich
, Charles M. Lieber

Chemistry

Harvard University

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

84 Scopus citations

Abstract

Multiwalled carbon nanotube (MWNT) probe microscopy tips have been functionalized with gases, activated in a transient arc produced at the tip ends. Adhesion measurements between these tips and hydroxyl-terminated monolayers versus pH reveal that MWNT tips reacted in O₂, H₂ and N₂ display acidic, pH-independent and basic properties, respectively. MWNT tips derivatized in O₂/N₂ and H₂/N₂ mixtures demonstrate the greater reactivity of carbon nanotubes towards O₂ and H₂, respectively. Moreover, the chemical reactivity of tips functionalized in N₂ suggests termination in aromatic nitrogen heterocycles. Tip-activated gas functionalization of MWNTs provides facile generation of chemically sensitive nanoprobes.

Original language	English
Pages (from-to)	219-225
Number of pages	7
Journal	Chemical Physics Letters
Volume	306
Issue number	5-6
DOIs	https://doi.org/10.1016/S0009-2614(99)00488-1
State	Published - Jun 18 1999

Access to Document

10.1016/S0009-2614(99)00488-1

Cite this

@article{70d93d30d0344213b903997ea1cc776b,

title = "Functionalization of carbon nanotube AFM probes using tip-activated gases",

abstract = "Multiwalled carbon nanotube (MWNT) probe microscopy tips have been functionalized with gases, activated in a transient arc produced at the tip ends. Adhesion measurements between these tips and hydroxyl-terminated monolayers versus pH reveal that MWNT tips reacted in O2, H2 and N2 display acidic, pH-independent and basic properties, respectively. MWNT tips derivatized in O2/N2 and H2/N2 mixtures demonstrate the greater reactivity of carbon nanotubes towards O2 and H2, respectively. Moreover, the chemical reactivity of tips functionalized in N2 suggests termination in aromatic nitrogen heterocycles. Tip-activated gas functionalization of MWNTs provides facile generation of chemically sensitive nanoprobes.",

author = "Wong, \{Stanislaus S.\} and Woolley, \{Adam T.\} and Ernesto Joselevich and Lieber, \{Charles M.\}",

year = "1999",

month = jun,

day = "18",

doi = "10.1016/S0009-2614(99)00488-1",

language = "English",

volume = "306",

pages = "219--225",

journal = "Chemical Physics Letters",

issn = "0009-2614",

number = "5-6",

}

TY - JOUR

T1 - Functionalization of carbon nanotube AFM probes using tip-activated gases

AU - Wong, Stanislaus S.

AU - Woolley, Adam T.

AU - Joselevich, Ernesto

AU - Lieber, Charles M.

PY - 1999/6/18

Y1 - 1999/6/18

N2 - Multiwalled carbon nanotube (MWNT) probe microscopy tips have been functionalized with gases, activated in a transient arc produced at the tip ends. Adhesion measurements between these tips and hydroxyl-terminated monolayers versus pH reveal that MWNT tips reacted in O2, H2 and N2 display acidic, pH-independent and basic properties, respectively. MWNT tips derivatized in O2/N2 and H2/N2 mixtures demonstrate the greater reactivity of carbon nanotubes towards O2 and H2, respectively. Moreover, the chemical reactivity of tips functionalized in N2 suggests termination in aromatic nitrogen heterocycles. Tip-activated gas functionalization of MWNTs provides facile generation of chemically sensitive nanoprobes.

AB - Multiwalled carbon nanotube (MWNT) probe microscopy tips have been functionalized with gases, activated in a transient arc produced at the tip ends. Adhesion measurements between these tips and hydroxyl-terminated monolayers versus pH reveal that MWNT tips reacted in O2, H2 and N2 display acidic, pH-independent and basic properties, respectively. MWNT tips derivatized in O2/N2 and H2/N2 mixtures demonstrate the greater reactivity of carbon nanotubes towards O2 and H2, respectively. Moreover, the chemical reactivity of tips functionalized in N2 suggests termination in aromatic nitrogen heterocycles. Tip-activated gas functionalization of MWNTs provides facile generation of chemically sensitive nanoprobes.

UR - https://www.scopus.com/pages/publications/0000272804

U2 - 10.1016/S0009-2614(99)00488-1

DO - 10.1016/S0009-2614(99)00488-1

M3 - Article

AN - SCOPUS:0000272804

SN - 0009-2614

VL - 306

SP - 219

EP - 225

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5-6

ER -

Functionalization of carbon nanotube AFM probes using tip-activated gases

Abstract

Access to Document

Other files and links

Fingerprint

Cite this