Dissertation > Excellent graduate degree dissertation topics show

Preparation of Nano Palladium and Platinum Composites for2,6-dichlorophenol and CO2Sensing

Author: ChenZhenXing
Tutor: JinGuanPing
School: Hefei University of Technology
Course: Applied Chemistry
Keywords: nano-Pd β-cyclodextrin self-assembly 2,6-dichlorophenol sensing nano-Pt/MWCNTs ultrasonic synthesis CO2sensing
CLC: TP212.2
Type: Master's thesis
Year: 2012
Downloads: 15
Quote: 0
Read: Download Dissertation

Abstract


Nanopalladium/β-cyclodextrin complex modified nickel steel electrode wasprepared for2,6-dichlorophenol （2,6-DCP） sensing. The processes involved threesteps: thiocholine was convently modified at the nickel steel electrode （Ni-Fe）using a cyclic voltammeter method （TCh/Ni-Fe）; β-cyclodextrin （β-CD） wasself-assembled at TCh/Ni-Fe by electrostatic attraction （β-CD/TCh/Ni-Fe）; then,nano-palladium was electrodeposited at β-CD/TCh/Ni-Fe to formPd/β-CD/TCh/Ni-Fe. The electrode was characterized by various methods includingfield emission scanning electron microscope （FE-SEM）, X-ray diffraction （XRD）,X-ray photoelectron spectroscopy （XPS） and electrochemical techniques. A like-earand equal distribution for nano-palladium could be observed with a size of17.2±4nm. The electrode showed an excellent electrocatalysis for the redox of2,6-DCP. Ithas been successfully applied to2,6-DCP sensing in a concentration range of1×10-61×10-4mol·L-1[i （A）=2.8×10-3+11.9Cx(mol·L-1), R=0.996, detectionlimit:1×10-9mol·L-1（3σ）].Platinum nanoparticles were grafted on multi-walled carbon nanotubes usingultrasonic synthesis method （Pt/MWCNTs）. The catalyst was characterized by filedemission scanning electron microscope （FE-SEM）, X-ray diffraction （XRD） andelectrochemical techniques. The results showed that Pt nanoparticles werehomogeneously inlaid on the surfaces of MWCNTs with an average size of40±20nm. The catalyst showed an excellent eletrocatalysis effect towards the reduction ofcarbon dioxide （CO2）, it was used as CO2sensing, and two good linearrelationships were respectively obtained at Pt/MWCNTs modified glassey carbonelectrode from1×10-61×10-5mol·L-1and1×10-51×10-4mol·L-1with adetection limit of1×10-6mol·L-1.

Related Dissertations

  1. Molecular Recognition Based on β-cyclodextrin and Chemical Modified β-cyclodextrin as Receptor,O636.12
  2. Cyclodextrin -modified magnetic nanoparticles synthesis and study drug carrier,TQ460.1
  3. 3 - hydroxybutyrate , and 3 - ( 2,2,2 - trifluoro- acetoxy ) ethyl butyrate, and PMBCD chiral Theoretical Study,O621.25
  4. Preparation and Evaluation of Coated Tablets of Valerian Extract,TQ461
  5. Synthesis and Optoelectrical Properties of Organic/inorganic Hybrid Perovskite （RNH3）2（CH3NH3）n-1MnX3n+1,O627
  6. Preparation and Characterization of Novel Chitosan Bearing Pendant Cyclodextrin Nanoparticles for Drug Delivery,R944.27
  7. Studies on the Enhancing Effects of Dimenthyl-β-cyclodextrin and Chitosan on Oral Bioavailability of BMCP25,R96
  8. Study on the Preparation of Ursolic Acid /β- Cyclodextrin Inclusion Complex by Ultrahigh Pressure,TQ461
  9. Preparation and Evaluation of Cinnamon Oil Microcapsules,R283
  10. Water-Soluble Binders for Sulfur Cathode Materials in Rechargeable Lithium Batteries,TM912
  11. Study on Stability and Bacteriostatic Action of Chloramphenicol Eye Drops with Hydroxypropyl-β-cyclodextrin,R943
  12. Preparation and Study of Application in Water Treatment of Chemically Modified Stationary Phase,X703
  13. The Study on Preparation of Actives Complex Using Supercritical CO2 Impregnation Technology,TS218
  14. Extraction of water-soluble drug enantiomers β- cyclodextrin reaction,TQ460.1
  15. Synthesis and Biological Activity of Polyethylene Glycol Phenoxyacetate and Inclusion Compounds with β-cyclodextrin,O636.1
  16. Removal of Thiophene and Mercaptan by β-cyclodextrin and Hydrotalcites,TE624.55
  17. Perilla oil supercritical extraction and cyclodextrin inclusion Integration Studies,TQ461
  18. The Study of Building of Drug/Cyclodextrins Supramolecular System and Their Applied Properties,TQ460.1
  19. Study on Processing and Syability of Artemisia Argyi Volatile Oil-β-cyclodextrin Inclusion Compound,TQ461
  20. Role of Lipid Raft-ceramide in DUOX1 Activation Induced by TNF-α in Human Bronchial Epithelial,R562.25
  21. Role of Lipid Raft-ceramide in TNF-α-induced NF-κB Activation and DUOX-1 Expression in Human Bronchial Epithelial Cells,R562.25

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Chemical sensors
© 2012 www.DissertationTopic.Net  Mobile