Spectroscopy — Electrochemical oxygen reduction catalysed by Ni3 (hexaiminotriphenylene)2

2 measurement groups · 3 results

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

Ni3(HITP)2 thin film on indium tin oxide electrode · Electrode

Ni3(HITP)2 on ITO, unused, KOH-submerged, N2-cycled and O2-cycled; 457 nm excitation.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Raman band retention	No missing or additional Raman bands for altered films compared with unused film.	—	—	Text Qualitative	main p.3 · Characterization before and after ORR · Supplementary Fig. 9

Ni3(HITP)2 thin film on glassy carbon electrode · Electrode

Unused and used Ni3(HITP)2 film on GCE, Ni2p and N1s regions.

Geometry: film on GCE
Context: pristine framework film before/after ORR
Measurement source: main p.3 · Characterization of Ni3(HITP)2 before and after ORR · Supplementary Figs. 7-8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
N1s shoulder peak before ORR	shoulder peak present before ORR at 399 eV and disappears after catalysis	—	—	Text Exact Reported	main p.3 · Characterization before and after ORR · Supplementary Fig. 8
Ni2p binding-energy shift after ORR	+1.0 eV	—	—	Text Exact Reported	main p.3 · Characterization before and after ORR · Supplementary Fig. 7