Dual-mode transport of molecular oxygen in a membrane containing a cobalt porphyrin complex as a fixed carrier

Nishide, Hiroyuki; Ohyanagi, Manshi; Okada, Osamu; Tsuchida, Eishura

doi:10.1021/ma00168a032

Cited by 120 publications

(37 citation statements)

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“…[9] Our experimental results were also consistent with the above-cited theoretical predictions except for the POZ/AgCF 3 SO 3 system. According to this model, P f increases linearly with C 0 B , demonstrating the importance of carrier concentration.…”

Section: Methodssupporting

confidence: 90%

Polymer-Salt Complexes Containing Silver Ions and Their Application to Facilitated Olefin Transport Membranes

et al. 2000

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Section: Methodssupporting

confidence: 90%

Polymer-Salt Complexes Containing Silver Ions and Their Application to Facilitated Olefin Transport Membranes

et al. 2000

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“…16 The mechanism of oxygen transport through the polymer membranes containing the cobalt complex has been described by some literature. [5][6][7] It has been reported that oxygen sorption and desorption to and from the cobalt complex in the membranes is rapid and reversible and that oxygen transport is facilitated by this additional pass. This process can be detected by means of an ESR spectroscopy or a high-sensitivity UV spectrophotometer.…”

Section: Effects Of Gas Pressure Difference On the Permeability And Smentioning

confidence: 99%

Oxygen/nitrogen transport in ionomer composite membranes containing a cobalt Schiff base complex

Zhang¹,

Lin²

1999

J. Appl. Polym. Sci.

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Different amounts of (N,NЈ-disalicylideneethylenediamin)cobalt (CoS) were blended to a cobalt (II)-neutralized sulfonated EPDM (Co (II) -S-EPDM) ionomer membrane to enhance its oxygen-enriching ability. Various influence factors on permeabilities and selectivities of the composite membranes, such as the gas pressure difference, the CoS content, and the testing temperature have been investigated. Oxygen permeability coefficients (P O 2 ) and oxygen/nitrogen separation factors (␣ O 2 /N 2 ) increased simultaneously by decreasing the gas pressure difference or by increasing the CoS content. In comparison with the EPDM matrix, P O 2 and ␣ O 2 /N 2 of Co (II) -S-EPDM-CoS (85/15) composite membrane increased from 11.0 Barrer and 4.38 to 37.0 Barrer and 9.60. Obvious enhancement in the oxygen-enriching property shows that the dual actions of cobaltous ion crosslinking and addition of an abundant cobalt complex may be an effective way to improve a rubbery polymer membrane. As high as 15 wt % of the CoS could be blended.

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“…Flash photolysis measurement on the oxygenbinding and -dissociation rate to and from the CoPim complex in the membrane supports the validity of this assumption. 9 Examples of the sorption kinetic runs are shown in Figure 4. The curves indicate that the sorptions and the transports of oxygen in the membrane satisfactorily fit the Fickian diffusion model.…”

Section: Vs T 1 1 2 Fl Is Linear Is Given As Follows and The Diffusmentioning

confidence: 99%

Spectroscopic Study of Oxygen Sorption and Diffusion in a Membrane Containing a Cobalt Porphyrin Complex

Nishide

Ohyanagi

Okada

et al. 1987

Polym J

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Dual-mode transport of molecular oxygen in a membrane containing a cobalt porphyrin complex as a fixed carrier

Cited by 120 publications

References 1 publication

Polymer-Salt Complexes Containing Silver Ions and Their Application to Facilitated Olefin Transport Membranes

Polymer-Salt Complexes Containing Silver Ions and Their Application to Facilitated Olefin Transport Membranes

Oxygen/nitrogen transport in ionomer composite membranes containing a cobalt Schiff base complex

Spectroscopic Study of Oxygen Sorption and Diffusion in a Membrane Containing a Cobalt Porphyrin Complex

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