Microscopy Morphology — Trimetallic conductive metal-organic frameworks as precatalysts for the oxygen evolution reaction with enhanced activity

Measurement evidence

Microscopy Morphology

Trimetallic conductive metal-organic frameworks as precatalysts for the oxygen evolution reaction with enhanced activity · Shi X., Hua R., Xu Y. et al. · Sustainable Energy and Fuels · 2020 · 4589-4597

4 measurement groups · 4 results

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

HAADF-STEM/EDX mapping

FeCo0.6Ni0.4-CAT powder/electrode, Fe/(Co+Ni) about 0.32 · Electrode

Elemental mapping for Co, Ni and Fe in FeCo0.6Ni0.4-CAT nanorods.

Context
trimetallic target MOF
Measurement source
3 · Results and discussion · Fig. 1e
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Co/Ni/Fe distributionCo, Ni, and Fe homogeneously distributed in FeCo0.6Ni0.4-CAT nanorodsQualitative
Qualitative
3 · Results and discussion · Fig. 1e

HRTEM

FeCo0.6Ni0.4-CAT powder/electrode, Fe/(Co+Ni) about 0.32 · Electrode

FEI Tecnai F20 TEM with EDX, accelerating voltage 200 kV.

Context
trimetallic target MOF
Measurement source
3 · Results and discussion · Fig. 1d
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Lattice fringe spacing1.91 nmText
Exact Reported
3 · Results and discussion · Fig. 1d

SEM

Co0.6Ni0.4-CAT powder/electrode · Electrode

Zeiss Supra 55 SEM, accelerating voltage 5 kV.

Context
bimetallic parent MOF
Measurement source
3 · Results and discussion · Fig. 1b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Average nanorod diameter70 nmText
Rounded Reported
3 · Results and discussion · Fig. 1b-c

SEM

FeCo0.8Ni0.2-CAT powder/electrode · Electrode

SI SEM images compare Co-CAT, FeCo-CAT, Ni-CAT, FeNi-CAT, Co0.8Ni0.2-CAT, FeCo0.8Ni0.2-CAT, Co0.4Ni0.6-CAT and FeCo0.4Ni0.6-CAT.

Context
M-CAT powder morphology controls and Fe-exchanged samples
Measurement source
S-3 · Supporting Information · Figure S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
SEM morphology comparison across Co/Ni and Fe-exchanged variantsSEM images show rod-like particles for the listed M-CAT variantsVisual Estimate
Qualitative
S-3 · Supporting Information · Figure S2