Porosity — Design and synthesis of hydroxide ion-conductive metal-organic frameworks based on salt inclusion

Measurement evidence

Porosity

Design and synthesis of hydroxide ion-conductive metal-organic frameworks based on salt inclusion · Sadakiyo M., Kasai H., Kato K. et al. · Journal of the American Chemical Society · 2014 · 1702-1705

6 measurement groups · 12 results

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

CO2 gas adsorption isotherm

NBu4-ZIF-8-OH powder · Powder

CO2 adsorption at 298 K compared NBu4-ZIF-8 and NBu4-ZIF-8-OH.

Temperature
298
Atmosphere
CO2 adsorbate
Context
Ion-exchanged sample compared with salt-loaded precursor.
Measurement source
1704 · Ion exchange · Figure 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Approximate CO2 adsorption of NBu4-ZIF-8 near 95 kPaabout 0.63 mmol g-1 at ca. 95 kPavisual estimate from Figure 3 axisFigure Axis
Approximate
1704 · Figure 3 · Figure 3
Approximate CO2 adsorption of NBu4-ZIF-8-OH near 95 kPaabout 0.82 mmol g-1 at ca. 95 kPavisual estimate from Figure 3 axisFigure Axis
Approximate
1704 · Figure 3 · Figure 3
OH- concentration in NBu4-ZIF-8-OH0.21 mmol g-1Text
Exact Reported
1704 · Ion exchange · Figure 3
Replacement of initially included HCO3- ions by OH-47%Text
Exact Reported
1704 · Ion exchange · Figure 3

N2 adsorption/desorption isotherm; BET surface area

NBu4-ZIF-8 powder · Powder

77 K; samples dried at room temperature under vacuum overnight.

Temperature
77
Atmosphere
N2 adsorbate
Context
Salt-loaded sample compared with pristine ZIF-8.
Measurement source
1703 · Porosity · Figure S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
BET surface area of NBu4-ZIF-8871 m2 g-1Text
Exact Reported
1703 · Porosity · Figure S7
BET surface area reduction by salt inclusionreduced by 52%Text
Exact Reported
1703 · Porosity · Figure S7
BET surface area reduction by salt inclusion on molar basis61%, calculated on the basis of units of m2 mol-1Text
Exact Reported
1703 · Porosity · Figure S7
Unoccupied cage fraction after salt inclusion30% of cages were not occupied by the saltText
Rounded Reported
1703 · Porosity · Figure S7

N2 adsorption/desorption isotherm; BET surface area

NBu4-ZIF-8-OH powder · Powder

77 K; NBu4-ZIF-8-OH transferred to measurement tube inside glovebox to avoid air exposure.

Temperature
77
Atmosphere
N2 adsorbate
Context
Ion-exchanged sample compared with NBu4-ZIF-8.
Measurement source
1704 · Porosity and ion exchange · Figure S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
BET surface area of NBu4-ZIF-8-OH868 m2 g-1Text
Exact Reported
1704 · Porosity and ion exchange · Figure S7

N2 adsorption/desorption isotherm; BET surface area

ZIF-8 powder · Powder

77 K; samples dried at room temperature under vacuum overnight.

Temperature
77
Atmosphere
N2 adsorbate
Context
Pristine ZIF-8 porosity control.
Measurement source
1703 · Porosity · Figure S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
BET surface area of ZIF-81664 m2 g-1Text
Exact Reported
1703 · Porosity · Figure S7

Water vapour adsorption/desorption isotherm

NBu4-ZIF-8-OH powder · Powder

298 K water vapour adsorption/desorption.

Temperature
298
Atmosphere
Water vapour adsorbate
Context
Ion-exchanged sample compared with pristine ZIF-8.
Measurement source
1704 · Conductivity discussion · Figure S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Approximate water vapour adsorption of NBu4-ZIF-8-OH near P/P0 0.95about 75 cm3 g-1 near P/P0 0.95visual estimate from Figure S9 axisFigure Axis
Approximate
S11 · Figure S9 · Figure S9

Water vapour adsorption/desorption isotherm

ZIF-8 powder · Powder

298 K water vapour adsorption/desorption.

Temperature
298
Atmosphere
Water vapour adsorbate
Context
Pristine framework compared with salt-included OH sample.
Measurement source
S11 · Figure S9 · Figure S9
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Approximate water vapour adsorption of ZIF-8 near P/P0 0.95about 36 cm3 g-1 near P/P0 0.95visual estimate from Figure S9 axisFigure Axis
Approximate
S11 · Figure S9 · Figure S9