English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Triazoles: a new class of precursors for the synthesis of negatively charged carbon nitride derivatives

Dontsova, D., Pronkin, S., Wehle, M., Chen, Z., Fettkenhauer, C., Clavel, G., et al. (2015). Triazoles: a new class of precursors for the synthesis of negatively charged carbon nitride derivatives. Chemistry of Materials, 27(15), 5170-5179. doi:10.1021/acs.chemmater.5b00812.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-D69C-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B954-0
Genre: Journal Article

Files

show Files
hide Files
:
2174713.pdf (Publisher version), 8MB
 
File Permalink:
-
Name:
2174713.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute of Colloids and Interfaces, MTKG; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
2174713_supp.pdf (Supplementary material), 2MB
Name:
2174713_supp.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Dontsova, Dariya1, Author              
Pronkin, Sergey2, Author
Wehle, Marko3, Author              
Chen, Zupeng1, Author              
Fettkenhauer, Christian1, Author              
Clavel, Guylhaine4, Author              
Antonietti, Markus5, Author              
Affiliations:
1Dariya Dontsova, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1933288              
2external, ou_persistent22              
3Mark Santer, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863326              
4Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863288              
5Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

Content

show
hide
Free keywords: -
 Abstract: Carbon nitride polymers were prepared for the first time by the pyrolysis of 3,5-disubstituted-1,2,4-triazole derivatives, namely 3,5-diamino-1,2,4-triazole [1] and 3-amino-1,2,4-triazole-5-thiol [2], in bulk as well as in LiCl/KCl salt melts. The reaction of [1] and [2] in bulk yields condensed heptazine-based polymers, while in LiCl/KCl eutectics it leads to the formation of well-defined potassium poly(heptazine imides), according to the results of 13C NMR and XPS investi-gations, whose formation resembles that of emeraldine salts of polyaniline. The density functional calculations supported the structural model suggested for potassium poly(heptazine imide) polymer. Owing to the specific reaction path, the products obtained from triazoles therefore show electronic properties rather different to known carbon nitrides, such as band gap and conduction and valence bands positions. With the degree of crystallinity of the reference materials, triazole-derived carbon nitrides are characterized by almost complete absence of steady photoluminescence, charge separation and localization upon excitation seems to be improved. As a consequence, photocatalysts prepared from [2] outperform classical carbon nitrides in a model dye degradation reaction and mesoporous graphitic carbon nitride in hydrogen evolution reaction under visible light irradiation. On its turn, [1] can be conveniently used as a co-monomer in order to prepare carbon nitrides with improved visible light absorption.

Details

show
hide
Language(s):
 Dates: 2015-07-142015
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1021/acs.chemmater.5b00812
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Chemistry of Materials
  Other : Chem. Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 27 (15) Sequence Number: - Start / End Page: 5170 - 5179 Identifier: ISSN: 0897-4756
CoNE: https://pure.mpg.de/cone/journals/resource/954925561571