ISO/TS TECHNICAL SPECIFICATION 10868 Second edition 2017-05 Nanotechnologies Characterization of single-wall carbon nanotubes using ultraviolet-visible-near infrared (UV- Vis-NIR) absorption spectroscopy Nanotechnologies Caractérisation des nanotubes a simple couche de carbone par utilisation de la spectroscopie d'absorption UV-Vis-NIR Reference number IS0/TS 10868:2017(E) International Organization for Standardization @ IS0 2017 ZHEJIANG INST OF STANDARDIZATION C1 5956617 ted without license from IHS IS0/TS 10868:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internationai ibrg DrganizationforStandardization icensee-ZHEJIANG INSTOF STANDARDIZAoISQ 07 - All rights reserved networking permited without license from IHS IS0/TS 10868:2017(E) Contents Page Foreword ..iv 1 Scope 1 2 Normative references ..1 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions 1 3.2 Abbreviated terms. 2 4 Principle .2 4.1 General 2 4.2 UV-Vis-NIR absorption spectroscopy 2 4.3 Optical absorption peaks of SWCNTs in the UV-Vis-NIR region 2 4.4 Relation between SWCNT diameter and optical absorption peaks .4 4.5 Derivation of the purity indicator from optical absorption peak areas 4 4.6 Derivation of ratio of metallic SWCNTs from optical absorption peak areas .6 5 UV-Vis-NIR spectrometer 6 6 Sample preparation method 6 6.1 General 6.2 Preparation of D2O dispersion for measurement of mean diameter and the ratio of metallic SWCNTs. 7 6.3 Preparation of solid film dispersion for measurement of the mean diameter and the ratio of metallic SWCNTs 7 6.4 Preparation of DMF dispersion for determination of the purity indicator. ..8 7 Optical measurement procedures and conditions ..8 8 Data analysis and results interpretations 9 8.1 Data analysis for characterization of SWCNT diameter .9 8.2 Data analysis for determination of the purity indicator .9 8.3 Data analysis for characterization of the ratio of metallic SWCNTs ..9 9 Measurement uncertainties .9 10 Test report ..10 Annex A (informative) Case study for derivation of the relation between optical absorption peaks of SwCNTs and their mean diameter ..11 Annex B (informative) Case study for determination of the purity indicator ..16 Bibliography .19 ii See=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vithout license from IHS Not for Resale, 2017/8/21 01:23:47