Microscopy Morphology — Electrocatalytic oxygen evolution reaction at IrOx supported by Ni/Co-ZIF-67: Controlled ratio of metallic Ir and Ir3+ states

5 measurement groups · 16 results

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

Ni/Co-ZIF-67-2 / Ni/Co-ZIF-67 · Nanosheet

EDS spectrum/inset table for Ni/Co-ZIF-67-2 in Figure S3; values read from rendered SI page image.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EDS C K weight percentage	17.63 wt% (C K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS Co K weight percentage	40.54 wt% (Co K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS Ni K weight percentage	5.92 wt% (Ni K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS N K weight percentage	0.2 wt% (N K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS O K weight percentage	35.71 wt% (O K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3

ZIF-67 nanosheet powder/control · Nanosheet

EDS spectrum/inset table for ZIF-67 in Figure S3; values read from rendered SI page image.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EDS C K weight percentage	26.26 wt% (C K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS Co K weight percentage	43.23 wt% (Co K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS N K weight percentage	0.22 wt% (N K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3
EDS O K weight percentage	30.29 wt% (O K)	—	—	Visual Estimate Rounded Reported	SI p3 · Figure S3 · Figure S3

Ni/Co-ZIF-67-2 / Ni/Co-ZIF-67 · Nanosheet

FESEM at 15 kV; EDS mapping used for elemental composition and distribution.

Context: mixed-metal support control
Measurement source: article p3 · Results and discussion · Figure 1c; Figures S3-S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EDS elemental distribution	uniform distribution of elements over ZIF sample surface	—	—	Text Qualitative	article p3 · Results and discussion · Figures S3-S4
Ni incorporation morphology effect	Ni-incorporation almost banished granular aggregation and continuously formed flat nanosheets	—	—	Text Qualitative	article p3 · Results and discussion · Figure 1c

ZIF-67 nanosheet powder/control · Nanosheet

Field-emission SEM at 15 kV with EDS available; morphology comparison for ZIF-67 and Ni/Co-ZIF-67-2.

Context: pristine support control
Measurement source: article p3 · Results and discussion · Figure 1c; Figure S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Morphology	nanosheet shape; crumbled nanosheets stacked	—	—	Text Qualitative	article p3 · Results and discussion · Figure 1c

2.8-IrOx@Ni/Co-ZIF-67 / IrOx@Ni/Co-ZIF-67 · Nanosheet

HR-TEM at 200 kV; STEM elemental mapping for 2.8-IrOx@Ni/Co-ZIF-67.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Metallic Ir (111) lattice spacing	0.22 nm	—	—	Text Exact Reported	article p4 · Results and discussion · Figure 2c
IrO2 (101) lattice spacing	0.25 nm	—	—	Text Exact Reported	article p4 · Results and discussion · Figure 2c
Average IrOx nanoparticle sizeMarked as a best value within this paper	~2.3 nm with a narrow size distribution	—	—	Text Approximate	article p4 · Results and discussion · Figure 2b
Particle dispersion	well-dispersed on Ni/Co-ZIF-67 without noticeable aggregation	—	—	Text Qualitative	article p4 · Results and discussion · Figure 2b-d