cMOF Evidence Base
Spectroscopy — CoP nanoparticles embedded in P and N co-doped carbon as efficient bifunctional electrocatalyst for water splitting

Measurement evidence

Spectroscopy

CoP nanoparticles embedded in P and N co-doped carbon as efficient bifunctional electrocatalyst for water splitting · Zhou Z., Mahmood N., Zhang Y. et al. · Journal of Energy Chemistry · 2017 · 1223-1230

3 measurement groups · 19 results

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

Post-OER TEM/HRTEM and XPS

X-ray photoelectron spectroscopyTransmission electron microscopy

CoP@PNC after 10 h OER in 1 M KOH · Electrode

CoP@PNC/CoP@NC after 10 h electrocatalytic OER in 1 M KOH; SI Figures S9-S10.

Atmosphere
1 M KOH during OER
Geometry
post-test electrode material
Context
CoP@PNC after OER durability testing
Measurement source
p010 · Supporting Information · Figures S9-S10
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Post-OER Co 2p low-energy shiftCo 2p peak shifts from 779.1 eV to 780.3 eV——Text
Exact Reported		p006 / article p.1228 · OER alkaline media · Figure S10
Post-OER HRTEM lattice fringe0.283 nm (011) facet fringe——Figure Axis
Rounded Reported		p010 · Supporting Information · Figure S9
Post-OER phosphate P 2p peak133.2 eV——Text
Exact Reported		p006 / article p.1228 · OER alkaline media · Figure S10
Post-OER phosphide feature disappearanceoriginal phosphide feature at 129.5 eV disappears completely——Text
Exact Reported		p006 / article p.1228 · OER alkaline media · Figure S10

Raman spectroscopy

Raman spectroscopy

CoP@PNC · Powder

DXR Microscope Raman spectrometer with 532 nm green semiconductor laser.

Geometry
powder
Context
MOF-derived CoP@PNC target
Measurement source
p002-p004 / article pp.1224-1226 · Characterizations; Results · Figure 1b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Raman D band position1328 cm-1——Text
Exact Reported		p004 / article p.1226 · Physico-chemical characters · Figure 1b
Raman G band position1577 cm-1——Text
Exact Reported		p004 / article p.1226 · Physico-chemical characters · Figure 1b

X-ray photoelectron spectroscopy

X-ray photoelectron spectroscopy

CoP@PNC · Powder

PHI-5000 XPS equipped with Al Kalpha radiation.

Geometry
powder surface
Context
MOF-derived CoP@PNC target
Measurement source
p002-p004 / article pp.1224-1226 · Characterizations; Results · Figure 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
XPS carbon atom content49 atom%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS carbon mass content28.1%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS cobalt atom content9.2 atom%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS cobalt mass content26.0%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS nitrogen atom content3.1 atom%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS nitrogen mass content2.1%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
Graphitic N XPS binding energy401.7 eV——Text
Exact Reported		p004 / article p.1226 · Physico-chemical characters · Figure 3c
Pyridinic N XPS binding energy400.1 eV——Text
Exact Reported		p004 / article p.1226 · Physico-chemical characters · Figure 3c
XPS oxygen atom content18.6 atom%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS oxygen mass content14.2%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
XPS phosphorus atom content20 atom%——SI Table
Exact Reported		p012 · Supporting Information · Table S2
P-C XPS binding energy132.3 eV——Text
Exact Reported		p004 / article p.1226 · Physico-chemical characters · Figure 3b
XPS phosphorus mass content29.7%——SI Table
Exact Reported		p012 · Supporting Information · Table S2