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. Author manuscript; available in PMC: 2021 Mar 26.
Published in final edited form as: ACS Appl Energy Mater. 2019 Jun 6;2(7):4907–4913. doi: 10.1021/acsaem.9b00610

Figure 4.

Figure 4.

(a) B 1s XPS region for elemental boron (control). (b) Post-mortem B 1s XPS analysis of [1] after 45 days of cycling indication no presence of borates. Additional controls can be found in the SI (Figure S7).