Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide
Forming a stable solid electrolyte interphase (SEI) is critical for rechargeable batteries’ performance and lifetime. Understanding its formation requires analytical techniques that provide molecular-level insight. Here, dynamic nuclear polarization (DNP) is utilized for the first time to enhance th...
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| Format: | Article |
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American Chemical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/42184/ |
| _version_ | 1848796439771086848 |
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| author | Leskes, Michal Kim, Gunwoo Liu, Tao Michan, Alison L. Aussenac, Fabien Dorffer, Patrick Paul, Subhradip Grey, Clare P. |
| author_facet | Leskes, Michal Kim, Gunwoo Liu, Tao Michan, Alison L. Aussenac, Fabien Dorffer, Patrick Paul, Subhradip Grey, Clare P. |
| author_sort | Leskes, Michal |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Forming a stable solid electrolyte interphase (SEI) is critical for rechargeable batteries’ performance and lifetime. Understanding its formation requires analytical techniques that provide molecular-level insight. Here, dynamic nuclear polarization (DNP) is utilized for the first time to enhance the sensitivity of solid-state NMR (ssNMR) spectroscopy to the SEI. The approach is demonstrated on reduced graphene oxide (rGO) cycled in Li-ion cells in natural abundance and 13C-enriched electrolyte solvents. Our results indicate that DNP enhances the signal of outer SEI layers, enabling detection of natural abundance 13C spectra from this component of the SEI on reasonable time frames. Furthermore, 13C-enriched electrolyte measurements at 100 K provide ample sensitivity without DNP due to the vast amount of SEI filling the rGO pores, thereby allowing differentiation of the inner and outer SEI layer composition. Developing this approach further will benefit the study of many electrode materials, equipping ssNMR with the necessary sensitivity to probe the SEI efficiently. |
| first_indexed | 2025-11-14T19:48:00Z |
| format | Article |
| id | nottingham-42184 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:00Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-421842020-05-04T18:34:47Z https://eprints.nottingham.ac.uk/42184/ Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide Leskes, Michal Kim, Gunwoo Liu, Tao Michan, Alison L. Aussenac, Fabien Dorffer, Patrick Paul, Subhradip Grey, Clare P. Forming a stable solid electrolyte interphase (SEI) is critical for rechargeable batteries’ performance and lifetime. Understanding its formation requires analytical techniques that provide molecular-level insight. Here, dynamic nuclear polarization (DNP) is utilized for the first time to enhance the sensitivity of solid-state NMR (ssNMR) spectroscopy to the SEI. The approach is demonstrated on reduced graphene oxide (rGO) cycled in Li-ion cells in natural abundance and 13C-enriched electrolyte solvents. Our results indicate that DNP enhances the signal of outer SEI layers, enabling detection of natural abundance 13C spectra from this component of the SEI on reasonable time frames. Furthermore, 13C-enriched electrolyte measurements at 100 K provide ample sensitivity without DNP due to the vast amount of SEI filling the rGO pores, thereby allowing differentiation of the inner and outer SEI layer composition. Developing this approach further will benefit the study of many electrode materials, equipping ssNMR with the necessary sensitivity to probe the SEI efficiently. American Chemical Society 2017-02-14 Article PeerReviewed Leskes, Michal, Kim, Gunwoo, Liu, Tao, Michan, Alison L., Aussenac, Fabien, Dorffer, Patrick, Paul, Subhradip and Grey, Clare P. (2017) Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide. Journal of Physical Chemistry Letters, 8 (5). pp. 1078-1085. ISSN 1948-7185 http://pubs.acs.org/doi/abs/10.1021/acs.jpclett.6b02590 doi:10.1021/acs.jpclett.6b02590 doi:10.1021/acs.jpclett.6b02590 |
| spellingShingle | Leskes, Michal Kim, Gunwoo Liu, Tao Michan, Alison L. Aussenac, Fabien Dorffer, Patrick Paul, Subhradip Grey, Clare P. Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide |
| title | Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide |
| title_full | Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide |
| title_fullStr | Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide |
| title_full_unstemmed | Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide |
| title_short | Surface-sensitive NMR detection of the solid electrolyte interphase layer on reduced graphene oxide |
| title_sort | surface-sensitive nmr detection of the solid electrolyte interphase layer on reduced graphene oxide |
| url | https://eprints.nottingham.ac.uk/42184/ https://eprints.nottingham.ac.uk/42184/ https://eprints.nottingham.ac.uk/42184/ |