cMOF Evidence Base
Electrochemistry Application — A Triptycene-Based 2D MOF with Vertically Extended Structure for Improving the Electrocatalytic Performance of CO2 to Methane

Measurement evidence

Electrochemistry Application

A Triptycene-Based 2D MOF with Vertically Extended Structure for Improving the Electrocatalytic Performance of CO2 to Methane · Lv J., Li W., Li J. et al. · Angewandte Chemie - International Edition · 2023 · e202217958

2 measurement groups · 15 results

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

CO2 electroreduction in H-type cell with LSV, chronoamperometry, GC, and 1H NMR product analysis

Nuclear magnetic resonanceVoltammetryChronoamperometry

2D-vc-MOF(Cu) glassy carbon working electrode · Electrode

Two-compartment H-cell, Nafion-117 membrane, CO2-saturated 0.1 M KCl, Pt counter, Ag/AgCl reference; CO2 continuously purged.

Atmosphere
CO2-saturated or Ar-saturated 0.1 M KCl
Geometry
5 mm GC disk working electrode with 5 uL catalyst ink
Context
2D-vc-MOF(Cu)/Nafion on GC electrode; pristine MOF active catalyst
Measurement source
4 · 2.4 The electrochemical reduction of CO2 · Figure 4; Figures S26-S31
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
CO2RR onset potential-0.55 V vs. RHE——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4a
Electrochemical surface area of 2D-vc-MOF(Cu)Marked as a best value within this paper0.0264 mF cm-2——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4d
FE(C2H4) decrease with potentialFE(C2H4) decreased from 26% to 0.8% as potential increased——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S26
FE(CH4) for 2D-vc-MOF(Cu) at -1.2 Vabout 20% at -1.2 V vs. RHE——Text
Rounded Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S26
FE(CH4) for 2D-vc-MOF(Cu) at -1.6 V33% at -1.6 V vs. RHE——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S26
Best FE(CH4) for 2D-vc-MOF(Cu)Marked as a best value within this paper65% at -1.4 V vs. RHE——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4b; Figure S26
FE(CO) for 2D-vc-MOF(Cu)around 1% at all tested potentials——Text
Approximate		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S26
Chronoamperometry current density at -1.4 Vstable current density of 7.5 mA cm-2 over 4 h——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S29
Average FE(CH4) during 4 h stability test55%——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S29
Tafel slope for 2D-vc-MOF(Cu)Marked as a best value within this paper258.8 mV dec-1——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4c
Maximum turnover number for 2D-vc-MOF(Cu)Marked as a best value within this paperTON = 165 at -1.4 V vs. RHE——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S37

CO2 electroreduction comparator measurements

Cu3(HHTP)2 comparison electrode · Electrode

Measured under the same CO2RR conditions as 2D-vc-MOF(Cu).

Atmosphere
CO2-saturated 0.1 M KCl
Geometry
glassy carbon working electrode
Context
Cu3(HHTP)2/Nafion on GC comparison electrode
Measurement source
4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4; Figures S36-S37
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Electrochemical surface area of Cu3(HHTP)20.0164 mF cm-2——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4d
Approximate maximum FE(CH4) for Cu3(HHTP)2about 34% near -1.3 to -1.4 V vs. RHE——Figure Axis
Approximate		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4b; Figure S36
Tafel slope for Cu3(HHTP)2303.9 mV dec-1——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure 4c
Maximum turnover number for Cu3(HHTP)2Marked as a best value within this paperTON = 93 at -1.5 V vs. RHE——Text
Exact Reported		4 · The e-CO2RR Performance of 2D-vc-MOF(Cu) · Figure S37