cMOF Evidence Base
Electrochemistry Application — Atomically Precise Integration of Multiple Functional Motifs in Catalytic Metal-Organic Frameworks for Highly Efficient Nitrate Electroreduction

Measurement evidence

Electrochemistry Application

Atomically Precise Integration of Multiple Functional Motifs in Catalytic Metal-Organic Frameworks for Highly Efficient Nitrate Electroreduction · Lv Y., Su J., Gu Y. et al. · JACS Au · 2022 · 2765-2777

3 measurement groups · 40 results

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

LSV and square-wave voltammetry

Voltammetry

In8 catalyst ink on carbon paper electrode · Electrode

pH 1-5 H2SO4 electrolyte with or without 0.5 g L-1 KNO3; optimal comparison at -0.7 V vs RHE.

Temperature
room temperature
Atmosphere
Ar-purged electrolyte for NO3RR tests
Geometry
H-type electrochemical cell / carbon paper electrode
Context
In8 on carbon paper
Measurement source
main p.4, article p.2768 · pH Dependence of In Situ Characteristics · Fig. 2c-f
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
InIII/InII SWV redox peak range0.18-0.25 V——Text
Range		main p.4, article p.2768 · pH Dependence · Fig. 2e

Control nitrate electroreduction measurements

In4 catalyst ink on carbon paper electrode · Electrode

In4, 3D In-MOF, ligands, carbon paper and soluble salts tested under comparable H2SO4/KNO3 conditions.

Temperature
room temperature
Atmosphere
Ar-purged electrolyte
Geometry
carbon paper electrodes / H-type cell
Context
control electrodes and soluble controls
Measurement source
main p.7-8, article pp.2771-2772 · Performance of Multifunctional MOF · Figs. S35-S51
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
3D In-MOF NO3RR activityno electrocatalytic nitrate reduction activity observed——Qualitative
Qualitative		main p.7, article p.2771 · Performance · Figs. S42-S44
Carbon paper / no nitrate NH3 backgroundnegligible NH3——Qualitative
Qualitative		main p.7, article p.2771 · Performance · Figs. S35-S37
Cu(OAc)2 FE(NH3)43.6%——Text
Exact Reported		main p.8, article p.2772 · Performance · Fig. S51; Table S1
Cu(OAc)2 NH3 yield rate109.0 ug h-1 mgcat-1——Text
Rounded Reported		main p.8, article p.2772 · Performance · Fig. S51; Table S1
In4 FE(NH3) at pH 216.9%——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40; Table S1
In4 FE(NH3) at pH 339.1%——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40
In4 NH3 yield at pH 260.48 ug h-1 mgcat-1——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40; Table S1
In4 NH3 yield at pH 37.67 ug h-1 mgcat-1——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40
In4 FE(NO2-) at pH 20.226%——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40
In4 FE(NO2-) at pH 340.1%——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40
In4 NO2- yield at pH 21.38 ug h-1 mgcat-1——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40
In4 NO2- yield at pH 385.09 ug h-1 mgcat-1——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S38-S40
In4 NH3 yield normalised to In site671.6 ug h-1 mgIn-1——Text
Exact Reported		main p.8, article p.2772 · Performance · Fig. S52; Table S1
In4 TOF4.54 h-1——Text
Exact Reported		main p.8, article p.2772 · Performance · Fig. S52
In(NO3)3 FE(NH3)31.2%——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S49-S50; Table S1
In(NO3)3 NH3 production rate118.7 ug h-1 mgcat-1——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S49-S50
In(OAc)3 FE(NH3)33.0%——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S49-S50
In(OAc)3 NH3 production rate124.9 ug h-1 mgcat-1——Text
Exact Reported		main p.7, article p.2771 · Performance · Figs. S49-S50; Table S1

Potentiostatic nitrate electroreduction with UV-vis/NMR product quantification

UV-visible and optical absorption spectroscopyNuclear magnetic resonance

In8 catalyst ink on carbon paper electrode · Electrode

H-type cell, Nafion 211 membrane, H2SO4 pH 1-5, KNO3 0.5-50 g L-1, Ar purge, typically -0.7 V vs RHE for 1 h.

Temperature
room temperature
Atmosphere
atmospheric pressure; high-purity Ar purged/fed during potentiostatic tests
Geometry
carbon paper working electrode in H-type cell
Context
In8 on carbon paper
Measurement source
SI p.6-9 · Electro-catalytic nitrate reduction measurements; Product detection · Fig. 4; Figs. S25-S59; Tables S1-S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
In8 optimised FE(NH3)Marked as a best value within this paper90.1%——Text
Exact Reported		main p.2, article p.2766 · Introduction · Fig. 4f,g; Table S1
In8 optimised areal NH3 yieldMarked as a best value within this paper278.8 ug h-1 cm-2 at 3 mg cm-2 in 15 g L-1 nitrate——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4f
In8 optimised NH3 yield normalised to catalyst massMarked as a best value within this paper256.9 ug h-1 mgcat-1 at 15 g L-1 KNO3——Text
Exact Reported		main p.2, article p.2766 · Abstract/Introduction · Fig. 4e; Table S1
In8 optimised NH3 selectivityMarked as a best value within this paper99.3%——Text
Exact Reported		main p.2, article p.2766 · Introduction · Fig. 4f,g; Table S1
In8 optimised NH3 yield normalised to In siteMarked as a best value within this paper3627.12 ug h-1 mgIn-1——Text
Exact Reported		main p.2, article p.2766 · Introduction · Fig. 4g; Table S1
In8 optimised NH3 yield normalised to In site (alternate text value)3627.18 ug h-1 mgIn-1——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4g
In8 optimised TOFMarked as a best value within this paper24.43 h-1——Text
Exact Reported		main p.2, article p.2766 · Introduction · Fig. 4g; Table S1
In8 FE(NH3) at 0.5 mg cm-2 and 15 g L-1 nitrate72.96%——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4e
In8 FE(NH3) at pH 2, 0.5 g L-1 KNO353.1%——Text
Exact Reported		main p.7, article p.2771 · Performance · Fig. 4a,b; Table S1
In8 maximum FE(NH3) at pH 3, 0.5 g L-1 KNO356.57% at -0.7 V vs RHE——Text
Exact Reported		main p.7, article p.2771 · Performance · Fig. 4a,b
In8 FE(NH3) at 3 mg cm-2 and 15 g L-1 nitrate92.0%——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4f
In8 NH3 selectivity at 3 mg cm-2 and 15 g L-1 nitrate99.3%——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4f
In8 areal NH3 yield at 4 mg cm-2 and 5 g L-1 nitrate85.86 ug h-1 cm-2——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4f
In8 FE(NH3) at 4 mg cm-2 and 5 g L-1 nitrate90.1%——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4f
In8 NH3 selectivity at 4 mg cm-2 and 5 g L-1 nitrate95.0%——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4f
In8 NH3 yield at 0.5 mg cm-2 and 15 g L-1 nitrate256.9 ug h-1 mgcat-1——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4e
In8 NH3 yield at pH 2, 0.5 g L-1 KNO392.98 ug h-1 mgcat-1 at -0.7 V vs RHE——Text
Exact Reported		main p.7, article p.2771 · Performance · Fig. 4a,b; Table S1
In8 NH3 rate quantified by NMR251.34 ug h-1 mgcat-1——Text
Exact Reported		main p.9, article p.2773 · Performance · Fig. 4i; Fig. S59
In8 NH3 selectivity at pH 2, 0.5 g L-1 KNO393.08%——SI Table
Exact Reported		SI p.76 · Table S1 · Table S1
In8 NH3 yield normalised to In site at 0.5 g L-1 KNO31312.8 ug h-1 mgIn-1——Text
Exact Reported		main p.8, article p.2772 · Performance · Fig. S52; Table S1
In8 TOF at 0.5 g L-1 KNO38.94 h-1——Text
Exact Reported		main p.8, article p.2772 · Performance · Fig. S52