Microscopy Morphology — Composition-dependent electrocatalytic activities of NiFe-based selenides for the oxygen evolution reaction

Measurement evidence

Microscopy Morphology

Composition-dependent electrocatalytic activities of NiFe-based selenides for the oxygen evolution reaction · Xuan C., Xia K., Lei W. et al. · Electrochimica Acta · 2018 · 64-72

2 measurement groups · 6 results

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

FESEM and TEM

Scanning electron microscopy Transmission electron microscopy

NiFe-PBA · Powder

Morphology imaging of NiFe-PBA precursor.

Context: pristine precursor
Measurement source: p003 · Results and discussion · Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
NiFe-PBA nanocube average size	100 to 150 nm	—	—	Text Range	p003 · Results and discussion · Fig. 1

SEM, DF-STEM, elemental mapping, TEM and HRTEM

Scanning electron microscopy Transmission electron microscopy Elemental microanalysis and mapping

Ni-Fe-Se1:1-180 · Powder

Morphology, elemental distribution and lattice spacing of target selenide.

Context: target selenide
Measurement source: p005 · Results and discussion · Fig. 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
HRTEM lattice spacing NiFe2Se4 (011)	0.34 nm	—	—	Text Exact Reported	p004 · Results and discussion · Fig. 3h-i
HRTEM lattice spacing NiFe2Se4 (211)	0.23 nm	—	—	Text Exact Reported	p004 · Results and discussion · Fig. 3h-i
HRTEM lattice spacing cubic NiSe2 (200)	0.3 nm	—	—	Text Exact Reported	p004 · Results and discussion · Fig. 3h-i
HRTEM lattice spacing cubic NiSe2 (221)	0.2 nm	—	—	Text Exact Reported	p004 · Results and discussion · Fig. 3h-i
Ni-Fe-Se1:1-180 morphology	collapsed/non-cubic structure; Ni, Fe and Se uniformly distributed	—	—	Text Qualitative	p004 · Results and discussion · Fig. 3/S5