Research output: Contribution to journal › Article › peer-review
Hybrid materials of zinc(II) tetra-tert-butylphthalocyanine and zinc(II) tetra-tert-butylnaphthalocyanine with single walled carbon nanotubes : Structure and sensing properties. / Polyakov, Maxim S.; Basova, Tamara V.
In: Macroheterocycles, Vol. 10, No. 1, 01.01.2017, p. 31-36.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Hybrid materials of zinc(II) tetra-tert-butylphthalocyanine and zinc(II) tetra-tert-butylnaphthalocyanine with single walled carbon nanotubes
T2 - Structure and sensing properties
AU - Polyakov, Maxim S.
AU - Basova, Tamara V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The influence of extension of the aromatic core of phthalocyanines derivatives on the properties of the functionalized single walled carbon nanotubes (CNT) is studied. For this purpose the comparative study of the structural features and sensing properties of the CNT functionalized with zinc 2,9,16,23-tetra-tert-butylphthalocyanine (ZnPc) and zinc 2,11,20,29-tetra-tert-butyl-2,3-naphthalocyanine complex (ZnNc) is carried out. The adsorption of ZnPc and ZnNc molecules onto the CNT surface has been confirmed by Raman spectroscopy, SEM, and thermogravimetric analysis. It was determined that the number of ZnNc molecules anchored on the CNT walls is more than the number of ZnPc molecules. The more preferable π-π interaction of ZnNc molecules with CNT appears to be due to the bigger number of π-electrons forming naphthalocyanine aromatic system. Thin films of pristine CNT, CNT/ZnPc and CNT/ZnNc hybrids were prepared by drop casting onto interdigitated electrodes and applied as active layers to detect ammonia vapour (10-50 ppm) by measuring electrical resistance changes. It has been shown that sensor response of the CNT/ ZnNc hybrid toward ammonia vapours is lager than that of CNT/ZnPc hybrid.
AB - The influence of extension of the aromatic core of phthalocyanines derivatives on the properties of the functionalized single walled carbon nanotubes (CNT) is studied. For this purpose the comparative study of the structural features and sensing properties of the CNT functionalized with zinc 2,9,16,23-tetra-tert-butylphthalocyanine (ZnPc) and zinc 2,11,20,29-tetra-tert-butyl-2,3-naphthalocyanine complex (ZnNc) is carried out. The adsorption of ZnPc and ZnNc molecules onto the CNT surface has been confirmed by Raman spectroscopy, SEM, and thermogravimetric analysis. It was determined that the number of ZnNc molecules anchored on the CNT walls is more than the number of ZnPc molecules. The more preferable π-π interaction of ZnNc molecules with CNT appears to be due to the bigger number of π-electrons forming naphthalocyanine aromatic system. Thin films of pristine CNT, CNT/ZnPc and CNT/ZnNc hybrids were prepared by drop casting onto interdigitated electrodes and applied as active layers to detect ammonia vapour (10-50 ppm) by measuring electrical resistance changes. It has been shown that sensor response of the CNT/ ZnNc hybrid toward ammonia vapours is lager than that of CNT/ZnPc hybrid.
KW - Carbon nanotubes
KW - Chemical sensors
KW - Hybrid materials
KW - Zinc naphthalocyanine
KW - Zinc phthalocyanine
KW - THIN-FILMS
KW - BEHAVIOR
KW - COMPLEXES
KW - SENSOR
KW - COORDINATION
KW - COPPER
KW - chemical sensors
KW - LAYERS
KW - zinc naphthalocyanine
KW - carbon nanotubes
KW - NICKEL
KW - PHTHALOCYANINE
KW - hybrid materials
KW - METAL-FREE
UR - http://www.scopus.com/inward/record.url?scp=85020820632&partnerID=8YFLogxK
U2 - 10.6060/mhc161176p
DO - 10.6060/mhc161176p
M3 - Article
AN - SCOPUS:85020820632
VL - 10
SP - 31
EP - 36
JO - Macroheterocycles
JF - Macroheterocycles
SN - 1998-9539
IS - 1
ER -
ID: 10184770