Sodium Naphthalene‐2, 6‐dicarboxylate: An Anode for Sodium Batteries. Issue 19 (12th September 2019)

• Record Type: Journal Article
• Authors: Cabañero, Joel M.; Pimenta, Vanessa; Cannon, Kieran C.; Morris, Russell E.; Armstrong, A. Robert
• Is Part Of: ChemSusChem. Volume 12:Issue 19(2019)
• Page Start: 4522
• Page End: 4528
• Publication Date: 2019-09-12
• Subjects: anodes -- batteries -- metal–organic frameworks (MOFs) -- Na ions -- organic redox; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201901626
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: The conjugated dicarboxylate sodium naphthalene‐2, 6‐dicarboxylate (Na2 NDC) was prepared by a low‐energy‐consumption reflux method, and its performance as a negative electrode for sodium‐ion batteries was evaluated in electrochemical cells. The structure of Na2 NDC was solved for the first time (monoclinic P 21 / c ) from powder XRD data and consists of π‐stacked naphthalene units separated by sodium–oxygen layers. Through an appropriate choice of binder and conducting carbon additive, Na2 NDC exhibited a reversible two electron sodium insertion at approximately 0.4 V (vs. Na + /Na) with remarkably stable capacities of approximately 200 mAh g −1 at a rate of C/2 and good rate capability (≈133 mAh g −1 at 5 C). In parallel, the high thermal stability of the material was demonstrated by high‐temperature XRD: the framework remained intact to above 500 °C. Abstract : Sodium battery anodes : The conjugated dicarboxylate sodium naphthalene‐2, 6‐dicarboxylate (Na2 NDC) is prepared by a low‐energy‐consumption reflux method, and its performance as a negative electrode for sodium‐ion batteries is evaluated in electrochemical cells.