Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2017 Mar 6;8:14424. doi: 10.1038/ncomms14424

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

PMC Copyright notice

(a) XRD of cycled Cu Bi-birnessite, cycled Bi-birnessite without Cu and uncycled initial electrode mix. Magnified panels show interlayer expansion in the case with Cu. (b) Raman spectra of cycled and control electrodes. (c) Raman spectra of cycled electrode, Cu²⁺-intercalated birnessite produced ex situ and synthetic birnessite. (d) HRTEM image of the cycled electrode. The darker region and lighter region is indexed to δ-MnO₂. (e) TEM EDX mapping of a region of the cycled electrode. Scale bars in d,e are 10 and 500 nm, respectively. Scale bar for maps in e is 250 nm.