Repository of University of Nova Gorica

Show document
A+ | A- | SLO | ENG

Title:Tungsten carbide thin films for electrochemical water splitting studies
Authors:European Nanoscience and Nanotechnology Association (Authorship owner)
Emin, Saim (Author)
Altinkaya, Cesur (Author)
Semerci, Ali (Author)
Valant, Matjaz (Author)
Okuyucu, Hasan (Author)
Yildiz, Abdullah (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.12 - Published Scientific Conference Contribution Abstract
Organization:UNG - University of Nova Gorica
Abstract:We used wet-chemistry techniques to prepare colloidal tungsten (W) nanoparticles (NPs). The synthesis of W NPs was conducted using the so called hot-matrix method in 1-octadecene [1]. The sizes of obtained W NPs are in the order of 2 - 5 nm. These W NPs are coated with hydrophobic molecules which allow their dispersion in organic solvents like choloroform (CHCl3). It was found that the colloidal stability of the dispersions is exceptionally high exceeding several years. The stability of W NPs which prevents coagulation allows the preparation of thin films with uniform thicknesses by spin-coating, inkjet-printing and spray coating. We have prepared tungsten carbide (W2C, WC) thin films. The preparation of W2C and WC was achieved by spin-coating of pre-synthesized W NPs on graphite substrate and following heat treatment under Ar atmosphere at 1000 and 1450°C. The obtained W2C and WC films were used both in electrochemical water splitting studies. We also made a composite W2C-Pt films where we used only 5 at.% of Pt. The W2C-Pt composite has shown similar performance as pure Pt-C for hydrogen (H2) evolution. In conclusion, we have developed a procedure for the synthesis of W NPs which can be applied for the preparation of tungsten carbides films and their use for electrochemical water splitting.
Keywords:water splitting, nanoparticles, hot-matrix
Year of publishing:2017
Number of pages:136
COBISS_ID:4927483 Link is opened in a new window
URN:URN:SI:UNG:REP:FRTFOKEM
Views:4171
Downloads:0
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:Document is not linked to any category.
:
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.

Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a monograph

Title:International Conference on Functional Nanomaterials and Nanodevices
Publisher:Veles
Conference organizer:Saim Emin / European Nanoscience and Nanotechnology Association
Place of publishing:Sofia, Bulgaria
Year of publishing:2017
Editors:Saim Emin

Back