Spectroscopy

ECL emission spectrum and photoluminescence spectrum

Ru@Ni3(HITP)2/GCE · Electrode

Ru@Ni3(HITP)2/GCE in 2 mL PBS (0.1 M, pH 7.0) including 10 uL TPrA; potential 0.2-1.25 V at 0.2 V/s for ECL spectrum.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Maximum ECL emissionMarked as a best value within this paper	638 nm	—	—	Text Exact Reported	p004 · 3.2 · Fig. 2B-C
ECL red-shift relative to PL	25 nm	—	—	Text Exact Reported	p004 · 3.2 · Fig. 2C
Maximum PL emission	613 nm	—	—	Text Exact Reported	p004 · 3.2 · Fig. 2C

Ru@Ni3(HITP)2 powder · Powder

Characterisation of Ru grafting, charge reversal, particle size and Ru/Ni ratio.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni3(HITP)2 average DLS diameter	255 nm	—	—	Text Approximate	p004 · 3.1 · Fig. S7C
Ru@Ni3(HITP)2 average DLS diameter	around 955 nm	—	—	Text Approximate	p004 · 3.1 · Fig. S7C
Protonated carboxyl FTIR peak absent after grafting	1717 cm-1 peak disappeared	—	—	Text Exact Reported	p004 · 3.1 · Fig. S5
ICP-OES Ru/Co molar ratio	0.08917	—	—	Text Exact Reported	SI text · S-11
ICP-OES Ru/Cu molar ratio	0.1097	—	—	Text Exact Reported	SI text · S-11
ICP-OES Ru/Ni molar ratioMarked as a best value within this paper	0.265:1	—	—	Text Rounded Reported	p004 · 3.1 · Section S10/S11
ICP-OES Ru/Ni molar ratio precise	0.2648	—	—	Text Exact Reported	SI text · S-11
UV-vis Ru(bpydc) absorption peak	302 nm	—	—	Text Exact Reported	p004 · 3.1 · Fig. S6
UV-vis Ru(bpydc) absorption peak	467 nm	—	—	Text Exact Reported	p004 · 3.1 · Fig. S6
Ni 2p1/2 binding-energy reduction after Ru grafting	0.65 eV	—	—	Text Exact Reported	SI text · S-12 · Fig. S8
Ni 2p3/2 binding-energy reduction after Ru grafting	0.55 eV	—	—	Text Exact Reported	SI text · S-12 · Fig. S8
Ni3(HITP)2 zeta potential	20.5 mV	—	—	Text Exact Reported	p004 · 3.1 · Fig. S7A-B
Ru@Ni3(HITP)2 zeta potential	-21.1 mV	—	—	Text Exact Reported	p004 · 3.1 · Fig. S7A-B