Table 1 XPS analysis results of Mo 3d spectra obtained on the CNT-carbon electrodes modified with POM anions.

From: Rational design of efficient electrode–electrolyte interfaces for solid-state energy storage using ion soft landing

Binding energy (eV)

Oxidation state

Area %

   

SL-CNT

ESD-NaPOM-CNT

ESD-NH 4 POM-CNT

ESD-HPOM-CNT

232.0

Mo 3d5/2

5+

8.1

6.7

3.0

6.8

233.1

 

6+

52.0

53.4

57.0

53.4

235.1

Mo 3d3/2

5+

5.4

4.4

2.0

4.5

236.2

 

6+

34.6

35.6

38.0

35.5

 

FWHM (eV)

1.6 eV

1.4 eV

1.3 eV

1.4 eV

  1. CNT, carbon nanotube; ESD, electrospray deposition; FWHM, full-width at half-maximum; POM, polyoxometalate; SL, soft landing; XPS, X-ray photoelectron spectroscopy.
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