Block copolymer templated synthesis of mesoporous WO3/carbon nanocomposites

John Bentley; Bishnu Prasad Bastakoti

doi:10.1007/s10853-022-07564-3

Block copolymer templated synthesis of mesoporous WO3/carbon nanocomposites

John Bentley
, Bishnu Prasad Bastakoti

North Carolina Agricultural and Technical State University

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

7 Scopus citations

Abstract

We synthesize mesoporous WO3/carbon composites with PS-PVP-PEO polymeric template. The molecularly dissolved polymer in THF self-assembles in positively charged spherical micelles upon the addition of HCl. The negatively charged tungsten source (WO42−) binds strongly with positively charged polymeric micelles. Glucose, WO42−, and micelles are assembled as a mesostructure during solvent evaporation. The carbonization of composites leads to mesoporous WO3/carbon nanocomposites. A polymeric micelle having unique blocks for porogen (polystyrene), reaction site (polyvinyl pyridine), and stabilizer (ethylene oxide) makes the system exceptional to synthesize mesoporous nanocomposites in a one-pot method. The nanocomposites were characterized by dynamic light scattering, scanning electron microscopy, transmission electron microscopy, Fourier transforms infrared spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical studies reveal that the composites deliver 381 F.g−1 capacitance with 96% retention in 1 M H2SO4.

Original language	English
Pages (from-to)	14772-14779
Number of pages	8
Journal	Journal of Materials Science
Volume	57
Issue number	31
DOIs	https://doi.org/10.1007/s10853-022-07564-3
State	Published - Aug 1 2022

Access to Document

10.1007/s10853-022-07564-3

Cite this

@article{d313d000137b4e9085cb2133dacb4b4b,

title = "Block copolymer templated synthesis of mesoporous WO3/carbon nanocomposites",

abstract = "We synthesize mesoporous WO3/carbon composites with PS-PVP-PEO polymeric template. The molecularly dissolved polymer in THF self-assembles in positively charged spherical micelles upon the addition of HCl. The negatively charged tungsten source (WO42−) binds strongly with positively charged polymeric micelles. Glucose, WO42−, and micelles are assembled as a mesostructure during solvent evaporation. The carbonization of composites leads to mesoporous WO3/carbon nanocomposites. A polymeric micelle having unique blocks for porogen (polystyrene), reaction site (polyvinyl pyridine), and stabilizer (ethylene oxide) makes the system exceptional to synthesize mesoporous nanocomposites in a one-pot method. The nanocomposites were characterized by dynamic light scattering, scanning electron microscopy, transmission electron microscopy, Fourier transforms infrared spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical studies reveal that the composites deliver 381 F.g−1 capacitance with 96\% retention in 1 M H2SO4.",

author = "John Bentley and Bastakoti, \{Bishnu Prasad\}",

year = "2022",

month = aug,

day = "1",

doi = "10.1007/s10853-022-07564-3",

language = "English",

volume = "57",

pages = "14772--14779",

journal = "Journal of Materials Science",

issn = "0022-2461",

publisher = "Springer",

number = "31",

}

TY - JOUR

T1 - Block copolymer templated synthesis of mesoporous WO3/carbon nanocomposites

AU - Bentley, John

AU - Bastakoti, Bishnu Prasad

PY - 2022/8/1

Y1 - 2022/8/1

N2 - We synthesize mesoporous WO3/carbon composites with PS-PVP-PEO polymeric template. The molecularly dissolved polymer in THF self-assembles in positively charged spherical micelles upon the addition of HCl. The negatively charged tungsten source (WO42−) binds strongly with positively charged polymeric micelles. Glucose, WO42−, and micelles are assembled as a mesostructure during solvent evaporation. The carbonization of composites leads to mesoporous WO3/carbon nanocomposites. A polymeric micelle having unique blocks for porogen (polystyrene), reaction site (polyvinyl pyridine), and stabilizer (ethylene oxide) makes the system exceptional to synthesize mesoporous nanocomposites in a one-pot method. The nanocomposites were characterized by dynamic light scattering, scanning electron microscopy, transmission electron microscopy, Fourier transforms infrared spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical studies reveal that the composites deliver 381 F.g−1 capacitance with 96% retention in 1 M H2SO4.

AB - We synthesize mesoporous WO3/carbon composites with PS-PVP-PEO polymeric template. The molecularly dissolved polymer in THF self-assembles in positively charged spherical micelles upon the addition of HCl. The negatively charged tungsten source (WO42−) binds strongly with positively charged polymeric micelles. Glucose, WO42−, and micelles are assembled as a mesostructure during solvent evaporation. The carbonization of composites leads to mesoporous WO3/carbon nanocomposites. A polymeric micelle having unique blocks for porogen (polystyrene), reaction site (polyvinyl pyridine), and stabilizer (ethylene oxide) makes the system exceptional to synthesize mesoporous nanocomposites in a one-pot method. The nanocomposites were characterized by dynamic light scattering, scanning electron microscopy, transmission electron microscopy, Fourier transforms infrared spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. The electrochemical studies reveal that the composites deliver 381 F.g−1 capacitance with 96% retention in 1 M H2SO4.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85135536840&origin=inward

UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85135536840&origin=inward

U2 - 10.1007/s10853-022-07564-3

DO - 10.1007/s10853-022-07564-3

M3 - Article

SN - 0022-2461

VL - 57

SP - 14772

EP - 14779

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 31

ER -

Block copolymer templated synthesis of mesoporous WO3/carbon nanocomposites

Abstract

Access to Document

Other files and links

Fingerprint

Cite this