Simple Synthesis of As, Sb, and Bi Nanosheets

  • ChemPubSoc Europe Logo
  • Author: Angewandte Chemie International Edition
  • Published Date: 08 September 2017
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Simple Synthesis of As, Sb, and Bi Nanosheets

Although there is a lot of research focusing on multielemental 2D materials, the number of monoelemental 2D materials such as graphene or black phosphorus (BP) is rather limited. In addition to BP, other group 5 elements (pnictogens) are attracting attention as 2D materials with semiconducting properties.

Martin Pumera, Nanyang Technological University, Singapore, and colleagues have found that aqueous shear exfoliation can be used to obtain As, Sb, and Bi exfoliated nanosheets. This shear force exfoliation was carried out using household kitchen blenders, and the pnictogens were processed in aqueous surfactants, making this a green, accessible, and scalable method. The obtained yields are comparable to previously known exfoliation methods.

The pnictogen nanosheets were obtained as fine powders that can be redispersed in the desired media. This shear exfoliation method also produces activated edges that improve electrochemical responses. The exfoliated nanosheets were evaluated in water-splitting reactions, where shear-exfoliated Sb had the best electrochemical performance overall. These results are thus significant for future applications of pnictogens in electrocatalysis and electroanalysis.


 

Article Views: 1180

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH