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<!doctype html><html class=no-js lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="ie=edge"><meta name=viewport content="width=device-width,initial-scale=1"><title>Polyoxometalate Incorporation and Effects on Proton Transport in Hydrogel Polymers - MillironX</title><link href="https://millironx.com/styles/mix-twbs.min.css" rel=stylesheet></head><body><div class=container-fluid><div class="row wrapper min-vh-100 flex-column flex-sm-row"><aside class="col-12 col-md-3 p-0 bg-dark flex-shrink-1"><nav class="navbar navbar-expand-md navbar-dark bg-dark align-items-start flex-md-column flex-row"><div class=container-fluid><a class="navbar-brand d-block d-md-none" href=#><object class="d-inline-block align-text-top" width=80 height=24 style=filter:invert(100%) data=https://millironx.com/graphics/millironx.svg>
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  Milliron X</h1></header></div><section class="container-fluid list-main"><div class="container px-5"><h5>University of Idaho: Moscow, Idaho</h5><h2>Polyoxometalate Incorporation and Effects on Proton Transport in Hydrogel Polymers</h2><h3><small><ul class=list-inline><li class=list-inline-item>Thomas A. Christensen II</li></ul></small></h3><h4>August 7, 2020</h4><p>Polyoxometalate clusters embedded into hydrogel biobeads may be able to solve
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the challenges posed by free proton generation during remediation of
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trichloroethylene by acting as buffers and reducing protons to hydrogen gas. In
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this thesis, the challenges posed by systems that contain both diffusion and
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reaction processes for protons are considered mathematically, and a computer
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simulation to was developed to prove the relationship between diaphragm cell lag
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period and reactive capabilities of membranes. Two polyoxometalate compounds,
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sodium decavanadate and alumina sulfate, were successfully incorporated into a
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poly(vinyl alcohol) hydrogel membrane, and the diffusivity changes associated
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with each compound was determined. It was found that the diffusivity of protons
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through an unmodified 10% w/v poly(vinyl alcohol) membrane was 1.76 ×
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10<sup>-5</sup>
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cm<sup>2</sup>
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s<sup>-1</sup>
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, the diffusivity through a
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10%/2% w/w/v poly(vinyl alcohol)/sodium decavanadate membrane was 3.10 ×
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10<sup>-6</sup>
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cm<sup>2</sup>
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s<sup>-1</sup>
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, and the diffusivity through a
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10%/2% w/w/v poly(vinyl alcohol)/alumina sulfate membrane was 3.32 ×
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10<sup>-7</sup>
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cm<sup>2</sup>
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s<sup>-1</sup>
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. Through analysis of the
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diaphragm cell lag period, it was found the incorporation of sodium decavanadate
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did not increase the reactivity of a poly(vinyl alcohol) hydrogel, and
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incorporation of alumina sulfate lowered the reactivity. These results indicate
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that polyoxometalate integration into hydrogel membranes is feasible, but does
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not provide any advantage to a bioremediation scenario.</p><div class="card border-dark m-3 p-3"><a href=https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2>https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2</a>
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<iframe src=https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2 style=width:100%;height:75vh></iframe></div></div></section><footer><div class="container-fluid footer-contents"><img src=https://millironx.com/images/brandedbull_hufc3ef4d1bebcd0898802af378829db58_10410_0x95_resize_box_3.png></div></footer></main></div></div><script src=https://millironx.com/js/fontawesome.min.6bc2dd5568cf8d07e2b66db77311aec6816cce50f3477ceac674c711fd4ec8eb.js></script>
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