Spectroscopy — A porous proton-relaying metal-organic framework material that accelerates electrochemical hydrogen evolution

Measurement evidence

Spectroscopy

A porous proton-relaying metal-organic framework material that accelerates electrochemical hydrogen evolution · Hod I., Deria P., Bury W. et al. · Nature Communications · 2015 · 8304

4 measurement groups · 9 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

EDS and ICP-OES elemental analysis

NU-1000_Ni-S · Electrode

Elemental ratios for NU-1000_Ni-S system after 2 min electrodeposition.

Geometry
thin-film electrode
Context
composite hybrid
Measurement source
11 · Supplementary Table 1 · Supplementary Table 1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
EDS Ni:S ratio1.7:1.0Text
Rounded Reported
2 · Results - Electrocatalyst synthesis · Supplementary Table 1
EDS Zr6:Ni ratio2.0:1.0SI Table
Rounded Reported
11 · Supplementary Table 1 · Supplementary Table 1
ICP-OES Ni:S ratio1.6:1.0Text
Rounded Reported
2 · Results - Electrocatalyst synthesis · Supplementary Table 1
ICP Zr6:Ni ratio1.6:1.0SI Table
Rounded Reported
11 · Supplementary Table 1 · Supplementary Table 1

1H NMR

benzoate-modified FTO_NU-1000 · Electrode

Benzoate-modified NU-1000 sample; integration of benzoic acid and H4TBAPy linker peaks.

Context
benzoate-modified NU-1000 control
Measurement source
8 · Supplementary Figure 10 · Supplementary Figure 10
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
benzoates per Zr6 node4 benzoic acids per Zr6 nodeestimated from NMR integrationCaption
Approximate
8 · Supplementary Figure 10 · Supplementary Figure 10

Raman spectroscopy

NU-1000_Ni-S · Electrode

NU-1000_Ni-S sample irradiated with 514.5 nm laser; 60 s acquisition averaged over ten runs.

Geometry
thin-film sample
Context
composite hybrid
Measurement source
3, 7 · Results - Electrocatalyst synthesis; Methods - Instrumentation · Supplementary Figure 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Raman peaks assigned to Ni3S2176, 190, 217, 300, 319 and 341 cm-1Text
Rounded Reported
3 · Results - Electrocatalyst synthesis · Supplementary Figure 5

X-ray photoelectron spectroscopy (XPS)

NU-1000_Ni-S · Electrode

S 2p, Ni 2p and survey spectrum for NU-1000_Ni-S film.

Geometry
thin-film electrode
Context
composite hybrid
Measurement source
2 · Results - Electrocatalyst synthesis · Supplementary Figure 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Ni 2p broad peak binding energycentred around 860 eVText
Approximate
2 · Results - Electrocatalyst synthesis · Supplementary Figure 2
S 2p sulfide binding energyca. 162 eVText
Approximate
2 · Results - Electrocatalyst synthesis · Supplementary Figure 2
oxidised sulfur XPS peakpeak at 168 eVText
Rounded Reported
2 · Results - Electrocatalyst synthesis · Supplementary Figure 2