Spectroscopy — Unraveling the Electrical, Dielectric, and Electrocatalytic Properties of Bimetallic Cobalt-Based Metal–Organic Frameworks

4 measurement groups · 15 results

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

1:2 Mn:Co cold-pressed pellet · Pellet

SI Figure S3 EDS spectra for Mn-BTC, 2:1 Mn:Co, 1:1 Mn:Co, 1:2 Mn:Co, and Co-BTC; atomic percent values read from rendered figure tables.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
1:1 Mn:Co EDS atomic percentages	C 60.2 at%, O 29.3 at%, Mn 4.4 at%, Co 6.1 at%	—	—	Visual Estimate Exact Reported	SI pp.S4-S5 · Supporting Information · Figure S3
1:2 Mn:Co EDS atomic percentages	C 60.2 at%, O 32.5 at%, Mn 2.0 at%, Co 5.3 at%	—	—	Visual Estimate Exact Reported	SI pp.S4-S5 · Supporting Information · Figure S3
2:1 Mn:Co EDS atomic percentages	C 61.7 at%, O 31.5 at%, Mn 5.0 at%, Co 1.9 at%	—	—	Visual Estimate Exact Reported	SI pp.S4-S5 · Supporting Information · Figure S3
Co-BTC EDS atomic percentages	C 60.3 at%, O 34.3 at%, Co 5.4 at%	—	—	Visual Estimate Exact Reported	SI pp.S4-S5 · Supporting Information · Figure S3
Mn-BTC EDS atomic percentages	C 61.3 at%, O 31.2 at%, Mn 7.5 at%	—	—	Visual Estimate Exact Reported	SI pp.S4-S5 · Supporting Information · Figure S3

1:2 Mn:Co cold-pressed pellet · Pellet

Nicolet iS50 FTIR; as-synthesised MOF pellets.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Metal-oxygen FTIR band	M-O bond identified at about 540-550 cm^-1.	—	—	Text Range	main p.3 · MOF Characterization · Figure 1b
O-H stretching band range	Broad IR band between 3200 and 3600 cm^-1 assigned to O-H stretching.	—	—	Text Range	main p.3 · MOF Characterization · Figure 1b

1:2 Mn:Co cold-pressed pellet · Pellet

Metal concentrations in bimetallic MOF samples measured by Perkin Elmer Optima 8300DV.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Measured Mn/Co concentration ratio for 1:1 Mn:Co	1.13	—	—	Text Exact Reported	main p.3 · MOF Characterization
Measured Mn/Co concentration ratio for 1:2 Mn:Co	0.31	—	—	Text Exact Reported	main p.3 · MOF Characterization
Measured Mn/Co concentration ratio for 2:1 Mn:Co	6.38	—	—	Text Exact Reported	main p.3 · MOF Characterization

1:2 Mn:Co MOF ink on carbon paper for OER stability · Electrode

High-resolution Mn 2p, Co 2p, and O 1s spectra of 1:2 Mn:Co before and after OER stability test.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co oxidation-state surface concentrations before and after OER	Before OER: Co2+ 55 at%, Co3+ 45 at%; after OER: Co2+ 73 at%, Co3+ 27 at%.	—	read from figure annotation	Visual Estimate Exact Reported	main p.7 · OER mechanism discussion · Figure 6b
Co 2p binding energies before OER	Co2+ peaks at 779.11 and 795.61 eV; Co3+ peaks at 780.47 and 796.97 eV.	—	—	Text Exact Reported	main p.6 · OER mechanism discussion · Figure 6b
Mn oxidation-state surface concentrations after OER	Mn2+ 20 at%, Mn3+ 27 at%, Mn4+ 53 at%	—	—	Text Exact Reported	main p.6 · OER mechanism discussion · Figure 6a
Mn oxidation-state surface concentrations before OER	Mn2+ 36 at%, Mn3+ 39 at%, Mn4+ 25 at%	—	—	Text Exact Reported	main p.6 · OER mechanism discussion · Figure 6a
O 1s binding energies after OER	529.49, 531.35, and 532.92 eV attributed to M-O, O-H, and C=O.	—	—	Text Exact Reported	main p.6 · OER mechanism discussion · Figure 6c