Electrochemistry Application — Efficient oxygen evolution using conductive cobalt-based metal-organic framework

9 measurement groups · 19 results

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

Co3O4 control catalyst ink on conductive carbon paper · Electrode

CVs recorded at scan rates from 25 to 200 mV s-1 to estimate electrochemically active surface area.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
double-layer capacitance	6.0 x 10-3 mF cm-2	0.006 mF cm-2	—	Text Exact Reported	6 · Result and discussion · Figure 7c

Co-BTB catalyst ink on conductive carbon paper · Electrode

CVs recorded at scan rates from 25 to 200 mV s-1 to estimate electrochemically active surface area.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
double-layer capacitanceMarked as a best value within this paper	1.3 mF cm-2	1.3 mF cm-2	—	Text Exact Reported	6 · Result and discussion · Figure 7c
CV scan-rate upper bound	200 mV s-1	—	range upper bound	Text Range	6 · Result and discussion · Figure 7a,b
CV scan-rate lower bound	25 mV s-1	—	range lower bound	Text Range	6 · Result and discussion · Figure 7a,b

Co3O4 control catalyst ink on conductive carbon paper · Electrode

Co3O4 control electrode measured under identical 1 M KOH conditions.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
current density at 1.8 V	15 mA cm-2 at 1.8 V	—	—	Text Rounded Reported	5 · Result and discussion · Figure 6b
OER overpotential at 10 mA cm-2	500 mV at 10 mA cm-2	0.5 V	—	Text Rounded Reported	5 · Result and discussion · Figure 6a

Co-BTB catalyst ink on conductive carbon paper · Electrode

Three-electrode cell in 1 M KOH; saturated Ag/AgCl reference electrode, graphite rod counter electrode, carbon-paper working electrode.

Geometry: Co-BTB ink on 1 cm2 conductive carbon paper
Context: Co-BTB/Nafion/carbon-paper electrode; active component is pristine Co-BTB MOF
Measurement source: SI text · 2.4 The electrochemical evaluation

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
current density at 1.8 VMarked as a best value within this paper	120 mA cm-2 at 1.8 V	—	—	Text Rounded Reported	5 · Result and discussion · Figure 6b
OER onset potentialMarked as a best value within this paper	1.40 V vs RHE	—	—	Text Rounded Reported	5 · Result and discussion · Figure 6a
OER overpotential at 10 mA cm-2Marked as a best value within this paper	170 mV at 10 mA cm-2	0.17 V	—	Text Rounded Reported	5 · Result and discussion · Figure 6a and Figure S2

IrO2 benchmark electrode · Electrode

Benchmark IrO2 electrode measured under identical 1 M KOH conditions.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
current density at 1.8 V	43 mA cm-2 at 1.8 V	—	—	Text Rounded Reported	5 · Result and discussion · Figure 6b
OER onset/reference potential	1.45 V vs RHE	—	—	Text Rounded Reported	5 · Result and discussion · Figure 6a
OER overpotential at 10 mA cm-2	290 mV at 10 mA cm-2	0.29 V	abstract says 250 mV	Text Uncertain	5 · Result and discussion · Figure 6a
OER overpotential at 10 mA cm-2, abstract value	250 mV at 10 mA cm-2	0.25 V	conflicts with discussion value 290 mV	Text Uncertain	1 · Abstract

Co-BTB catalyst ink on conductive carbon paper · Electrode

Long-term durability investigated at 20 and 30 mA cm-2 for 24 h in 1 M KOH.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
OER stability current density step	30 mA cm-2	—	—	Text Exact Reported	5 · Result and discussion · Figure 6d
OER stability current density step	20 mA cm-2	—	—	Text Exact Reported	5 · Result and discussion · Figure 6d
OER stability test duration	24 h at 20 and 30 mA cm-2	24 h	—	Text Exact Reported	5 · Result and discussion · Figure 6d