Spectroscopy — Enhanced cobalt MOF electrocatalyst for oxygen evolution reaction via morphology regulation

7 measurement groups · 22 results

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

Co-MOF-C electrode after OER testing · Electrode

FTIR spectra of Co-MOF-C before and after OER test

Context: post-OER Co-MOF-C electrode
Measurement source: p006 / journal page 6 · 2. Result and discussion · Fig. S13

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
symmetric -COO- stretching	1354 cm-1	—	—	Text Exact Reported	p006 / journal page 6 · 2. Result and discussion · Fig. S13
asymmetric -COO- stretching	1621 cm-1	—	—	Text Exact Reported	p006 / journal page 6 · 2. Result and discussion · Fig. S13

Co-MOF-A powder · Powder

FTIR comparison of Co-MOF-A/B/C

Context: pristine MOF powders
Measurement source: p003 / journal page 3 · 2. Result and discussion · Fig. 2b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
para-aromatic C-H stretching	1004 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b
para-aromatic C-H stretching	1092 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b
para-aromatic C-H stretching	1140 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b
para-aromatic C-H stretching	812 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b
carboxylate stretching band	1359 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b
carboxylate stretching band	1585 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b
OH stretching vibration	3590 cm-1	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2b

Co-MOF-A powder · Powder

Co content of Co-MOF-A powder from SI Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ICP measured Co content	37.34 wt.%	—	—	SI Table Exact Reported	p012 / SI page S12 · Table S1 · Table S1
Co molar ratio agreement	each Co-MOF agrees with the theoretical molar ratio of the raw materials	—	—	Text Qualitative	p003 / journal page 3 · 2. Result and discussion · Table S1

Co-MOF-B powder · Powder

Co content of Co-MOF-B powder from SI Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ICP measured Co content	37.29 wt.%	—	—	SI Table Exact Reported	p012 / SI page S12 · Table S1 · Table S1

Co-MOF-C powder · Nanosheet

Co content of Co-MOF-C powder from SI Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
ICP measured Co contentMarked as a best value within this paper	37.51 wt.%	—	—	SI Table Exact Reported	p012 / SI page S12 · Table S1 · Table S1

Co-MOF-C powder · Nanosheet

Survey and high-resolution Co 2p spectrum of representative fresh Co-MOF-C

Context: pristine Co-MOF-C powder
Measurement source: p003 / journal page 3 · 2. Result and discussion · Fig. 2c-d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co 2p1/2 binding energy	797.7 eV	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2d
Co 2p3/2 binding energy	781.8 eV	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2d
cobalt oxidation state	cobalt metal centres mainly exist as Co2+ ions	—	—	Text Qualitative	p003 / journal page 3 · 2. Result and discussion · Fig. 2d
satellite shake-up peak	786.7 eV	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2d
satellite shake-up peak	803.7 eV	—	—	Text Exact Reported	p003 / journal page 3 · 2. Result and discussion · Fig. 2d

Co-MOF-C electrode after OER testing · Electrode

Co 2p XPS before/after electrolysis of Co-MOF-C

Context: post-OER Co-MOF-C electrode
Measurement source: p005-p006 / journal pages 5-6 · 2. Result and discussion · Fig. 5d; Fig. S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
post-test Co2+ Co 2p1/2 binding energy	797.70 eV	—	—	Text Exact Reported	p005-p006 / journal pages 5-6 · 2. Result and discussion · Fig. 5d
post-test Co2+ Co 2p3/2 binding energy	781.80 eV	—	—	Text Exact Reported	p005-p006 / journal pages 5-6 · 2. Result and discussion · Fig. 5d
post-test Co3+ binding energy	777.0 eV	—	—	Text Exact Reported	p005-p006 / journal pages 5-6 · 2. Result and discussion · Fig. 5d
active-species inference	surface-oxidized Co3+ indicates CoOOH likely generated as active species	—	—	Text Qualitative	p006 / journal page 6 · 2. Result and discussion · Fig. 5d