Microscopy Morphology — High Proton Mobility with High Directionality in Isolated Channels of MOF-74

Measurement evidence

Microscopy Morphology

High Proton Mobility with High Directionality in Isolated Channels of MOF-74 · Hwang S., Lee E.J., Song D. et al. · ACS Applied Materials and Interfaces · 2018 · 35354-35660

5 measurement groups · 30 results

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

Optical microscopy and geometric dimension measurement for conductivity calculations

Electrical conductivity

pH 11 NH4OH-treated Co-MOF-74 crystals before electrode configuration · Single Crystal

Dimensions used in sigma = l/(R*A) for c-axis single crystal, a-axis single crystal, and pellet EIS geometries.

Geometry: c-axis, a-axis, and pellet dimensions reported in Table S2
Context: pristine Co-MOF-74 framework with pH-controlled guest/proton carriers
Measurement source: S-7 · Section S4 · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
a-axis crystal length	1.08 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
a-axis electrode cross-sectional area	11.264 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis crystal length	3.86 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis electrode cross-sectional area	1.52 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet electrode area	0.4072 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet thickness/length	6.9 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2

Optical microscopy and geometric dimension measurement for conductivity calculations

Electrical conductivity

pH 3 H2SO4-treated Co-MOF-74 crystals before electrode configuration · Single Crystal

Dimensions used in sigma = l/(R*A) for c-axis single crystal, a-axis single crystal, and pellet EIS geometries.

Geometry: c-axis, a-axis, and pellet dimensions reported in Table S2
Context: pristine Co-MOF-74 framework with pH-controlled guest/proton carriers
Measurement source: S-7 · Section S4 · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
a-axis crystal length	0.93 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
a-axis electrode cross-sectional area	6.712 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis crystal length	2.41 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis electrode cross-sectional area	3.579 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet electrode area	0.4072 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet thickness/length	5.1 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2

Optical microscopy and geometric dimension measurement for conductivity calculations

Electrical conductivity

pH 5 H2SO4-treated Co-MOF-74 crystals before electrode configuration · Single Crystal

Dimensions used in sigma = l/(R*A) for c-axis single crystal, a-axis single crystal, and pellet EIS geometries.

Geometry: c-axis, a-axis, and pellet dimensions reported in Table S2
Context: pristine Co-MOF-74 framework with pH-controlled guest/proton carriers
Measurement source: S-7 · Section S4 · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
a-axis crystal length	0.73 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
a-axis electrode cross-sectional area	8.832 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis crystal length	3.28 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis electrode cross-sectional area	3.642 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet electrode area	0.4072 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet thickness/length	5.8 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2

Optical microscopy and geometric dimension measurement for conductivity calculations

Electrical conductivity

pH 7 H2O-coordinating Co-MOF-74 crystals before electrode configuration · Single Crystal

Dimensions used in sigma = l/(R*A) for c-axis single crystal, a-axis single crystal, and pellet EIS geometries.

Geometry: c-axis, a-axis, and pellet dimensions reported in Table S2
Context: pristine Co-MOF-74 framework with pH-controlled guest/proton carriers
Measurement source: S-7 · Section S4 · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
a-axis crystal length	0.88 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
a-axis electrode cross-sectional area	14.62 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis crystal length	4.65 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis electrode cross-sectional area	3.84 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet electrode area	0.4072 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet thickness/length	7.5 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2

Optical microscopy and geometric dimension measurement for conductivity calculations

Electrical conductivity

pH 9 NH4OH-treated Co-MOF-74 crystals before electrode configuration · Single Crystal

Dimensions used in sigma = l/(R*A) for c-axis single crystal, a-axis single crystal, and pellet EIS geometries.

Geometry: c-axis, a-axis, and pellet dimensions reported in Table S2
Context: pristine Co-MOF-74 framework with pH-controlled guest/proton carriers
Measurement source: S-7 · Section S4 · Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
a-axis crystal length	0.98 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
a-axis electrode cross-sectional area	12.475 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis crystal length	3.19 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
c-axis electrode cross-sectional area	2.897 x10^-5 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet electrode area	0.4072 cm2	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2
pellet thickness/length	6.7 x10^-2 cm	—	—	SI Table Exact Reported	S-7 · Section S4 · Table S2