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Title: A one-pot synthetic approach to prepare palladium nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres for hydrogen peroxide sensing

Abstract

A simple one-step method to fabricate hierarchically porous TiO{sub 2}/Pd composite hollow spheres without any template was developed by using solvothermal treatment. Pd nanoparticles (2-5 nm) were well dispersed in the mesopores of the TiO{sub 2} hollow spheres via in-situ reduction. In our experiment, polyvinylpyrrolidone played an important role in the synthetic process as the reducing agent and the connective material between TiO{sub 2} and Pd nanoparticles. HF species generated from solvothermal reaction leaded to the formation of TiO{sub 2} hollow spheres and Ostwald ripening was another main factor that affected the size and structure of the hollow spheres. The as-prepared TiO{sub 2}/Pd composite hollow spheres exhibited high electrocatalytic activity towards the reduction of H{sub 2}O{sub 2}. The sensitivity was about 226.72 {mu}A mM{sup -1} cm{sup -2} with a detection limit of 3.81 {mu}M at a signal-to-noise ratio of 3. These results made the hierarchically porous TiO{sub 2}/Pd composite a promising platform for fabricating new nonenzymic biosensors. - Graphical Abstract: A new one-step solvothermal method was developed to prepare Pd nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres. Due to its unique nanostructure, the prepared TiO{sub 2}/Pd modified GC electrode exhibit a high sensitivity (226.72 {mu}A mM{sup -1} cm{sup -2}),more » a relatively low reduction potential (-0.2 V), a fast response time (<3 s) and a relatively low detection limit of 3.81 {mu}M (S/N=3) towards H{sub 2}O{sub 2}.« less

Authors:
 [1]; ;  [1]
  1. Alan G. MacDiarmid Institute, Jilin University, Changchun 130012 (China)
Publication Date:
OSTI Identifier:
21421489
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 183; Journal Issue: 10; Other Information: DOI: 10.1016/j.jssc.2010.08.005; PII: S0022-4596(10)00339-7; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; HYDROGEN PEROXIDE; NANOSTRUCTURES; PALLADIUM; POROUS MATERIALS; PVP; SENSITIVITY; SPHERES; TITANIUM OXIDES; AMIDES; AZOLES; BLOOD SUBSTITUTES; CHALCOGENIDES; DRUGS; ELEMENTS; HEMATOLOGIC AGENTS; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; LACTAMS; MATERIALS; METALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; OXIDES; OXYGEN COMPOUNDS; PEROXIDES; PLATINUM METALS; POLYMERS; POLYVINYLS; PYRROLES; PYRROLIDONES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Citation Formats

Lirong, Kong, Lu Xiaofeng, E-mail: xflu@jlu.edu.c, Xiujie, Bian, Wanjin, Zhang, and Wang Ce, E-mail: cwang@jlu.edu.c. A one-pot synthetic approach to prepare palladium nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres for hydrogen peroxide sensing. United States: N. p., 2010. Web. doi:10.1016/j.jssc.2010.08.005.
Lirong, Kong, Lu Xiaofeng, E-mail: xflu@jlu.edu.c, Xiujie, Bian, Wanjin, Zhang, & Wang Ce, E-mail: cwang@jlu.edu.c. A one-pot synthetic approach to prepare palladium nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres for hydrogen peroxide sensing. United States. https://doi.org/10.1016/j.jssc.2010.08.005
Lirong, Kong, Lu Xiaofeng, E-mail: xflu@jlu.edu.c, Xiujie, Bian, Wanjin, Zhang, and Wang Ce, E-mail: cwang@jlu.edu.c. 2010. "A one-pot synthetic approach to prepare palladium nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres for hydrogen peroxide sensing". United States. https://doi.org/10.1016/j.jssc.2010.08.005.
@article{osti_21421489,
title = {A one-pot synthetic approach to prepare palladium nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres for hydrogen peroxide sensing},
author = {Lirong, Kong and Lu Xiaofeng, E-mail: xflu@jlu.edu.c and Xiujie, Bian and Wanjin, Zhang and Wang Ce, E-mail: cwang@jlu.edu.c},
abstractNote = {A simple one-step method to fabricate hierarchically porous TiO{sub 2}/Pd composite hollow spheres without any template was developed by using solvothermal treatment. Pd nanoparticles (2-5 nm) were well dispersed in the mesopores of the TiO{sub 2} hollow spheres via in-situ reduction. In our experiment, polyvinylpyrrolidone played an important role in the synthetic process as the reducing agent and the connective material between TiO{sub 2} and Pd nanoparticles. HF species generated from solvothermal reaction leaded to the formation of TiO{sub 2} hollow spheres and Ostwald ripening was another main factor that affected the size and structure of the hollow spheres. The as-prepared TiO{sub 2}/Pd composite hollow spheres exhibited high electrocatalytic activity towards the reduction of H{sub 2}O{sub 2}. The sensitivity was about 226.72 {mu}A mM{sup -1} cm{sup -2} with a detection limit of 3.81 {mu}M at a signal-to-noise ratio of 3. These results made the hierarchically porous TiO{sub 2}/Pd composite a promising platform for fabricating new nonenzymic biosensors. - Graphical Abstract: A new one-step solvothermal method was developed to prepare Pd nanoparticles embedded hierarchically porous TiO{sub 2} hollow spheres. Due to its unique nanostructure, the prepared TiO{sub 2}/Pd modified GC electrode exhibit a high sensitivity (226.72 {mu}A mM{sup -1} cm{sup -2}), a relatively low reduction potential (-0.2 V), a fast response time (<3 s) and a relatively low detection limit of 3.81 {mu}M (S/N=3) towards H{sub 2}O{sub 2}.},
doi = {10.1016/j.jssc.2010.08.005},
url = {https://www.osti.gov/biblio/21421489}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 10,
volume = 183,
place = {United States},
year = {2010},
month = {10}
}