In the original article, we neglected to include the funder Department of Energy's National Energy Technology Laboratory (DOE-NETL), DE# FE0024297 to SS and PJM. The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way.
Conflict of interest statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Footnotes
Funding. This research was financed by grants from the National Science Foundation (NSF-DEB #1342732/1342701 to SS/PM) and Early Career instrumentation grant NSF EAR #1205596 to SS. We thank the Department of Energy's National Energy Technology Laboratory (DOE-NETL) grant DE# FE0024297 for funding part of this research.