Spectroscopy — Solvothermal preparation of an electrocatalytic metalloporphyrin MOF thin film and its redox hopping charge-transfer mechanism

3 measurement groups · 7 results

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

attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR)

Infrared spectroscopy

CoPIZA/FTO thin film electrode · Electrode

Varian 670 FT-IR with diamond Specac Golden Gate attachment; 6000 scans for thin films; 4000-400 cm^-1 range; 4 cm^-1 resolution.

Atmosphere: background spectrum collected on air
Geometry: thin film on FTO
Context: target CoPIZA/FTO compared with TCPP and CoTCPP powders
Measurement source: 7 · Experimental Section - ATR-FTIR · Figure 3A

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CoPIZA/FTO shifted carboxylate stretching band	1664 cm^-1	—	—	Text Rounded Reported	3 · Results and Discussion · Figure 3A

steady-state UV-vis absorption spectroscopy

UV-visible and optical absorption spectroscopy

CoPIZA/FTO thin film electrode · Electrode

Cary Series UV-vis NIR spectrophotometer; wavelength scanned from 800 to 200 nm, 1.00 nm data interval, 600 nm/min scan rate.

Atmosphere: DMF spectra before/after nitrogen purge for selected measurements
Geometry: CoPIZA/FTO in DMF where specified
Context: target CoPIZA/FTO compared with TCPP in DMF
Measurement source: 7 · Experimental Section - Steady-State UV-vis Absorption Spectroscopy · Figures 3B and 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CoPIZA/FTO lower-energy Q band 1	548 nm	—	—	Text Rounded Reported	3 · Results and Discussion · Figure 3B
CoPIZA/FTO lower-energy Q band 2	595 nm	—	—	Text Rounded Reported	3 · Results and Discussion · Figure 3B
CoPIZA/FTO Soret band	436 nm	—	—	Text Rounded Reported	3 · Results and Discussion · Figure 3B

X-ray photoelectron spectroscopy (XPS)

X-ray photoelectron spectroscopy

CoPIZA/FTO thin film electrode · Electrode

PHI 5300 spectrometer; Mg Kalpha radiation, 13 kV, 250 W, pass energy 17.9 eV, 0.025 eV step, 180 sweeps; N 1s scan 410-390 eV and Co 2p scan 765-815 eV.

Atmosphere: sampling chamber below 1 x 10^-7 Torr
Geometry: thin film on FTO
Context: target CoPIZA/FTO compared with FTO and TCPP SAM/FTO controls
Measurement source: 7 · Experimental Section - X-ray Photoelectron Spectroscopy (XPS) · Figure 2A-B

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CoPIZA Co2p binding energy lower peak	782 eV	—	—	Text Rounded Reported	2 · Results and Discussion · Figure 2B
CoPIZA Co2p binding energy higher peak	798 eV	—	—	Text Rounded Reported	2 · Results and Discussion · Figure 2B
TCPP SAM N1s binding energy	401 eV	—	—	Text Rounded Reported	2 · Results and Discussion · Figure 2A