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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="/styles/millironx.min.css" rel=stylesheet></head><body><header><object data=/graphics/millironx.svg>
<img src=/graphics/millironx.svg alt="Milliron X"></object><h1 class=font-small-caps>Milliron X</h1></header><div class=row><aside><nav><a href=/><span class="fa-container fa-fw"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"><path d="M511.8 287.6H576V240L288.4.0.0 240v47.6H64.1V512H224V352H352V512H512.8l-1-224.4z"/></svg></span>Home</a>
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<a href=/academia/><span class="fa-container fa-fw"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M0 144 256 0 512 144v48H0V144zM0 512V464l64-48V224h64V416h40V224h64V416h48V224h64V416h40V224h64V416l64 48v48H0zM256 144a32 32 0 100-64 32 32 0 100 64z"/></svg></span>Academia</a>
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<a href=/websites/><span class="fa-container fa-fw"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M0 32H512V480H0V32zm160 72v48H448V104H160zm-32-8H64v64h64V96z"/></svg></span>Websites</a></nav></aside><main><section><h5>University of Idaho: Moscow, Idaho</h5><h2>Polyoxometalate Incorporation and Effects on Proton Transport in Hydrogel Polymers</h2><h3><small><a href=/people/thomas-a.-christensen-ii/ class="card-link
bolder"><span class="fa-container fa-fw"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path d="M224 256A128 128 0 10224 0a128 128 0 100 256zM448 512 384 304H64L0 512H448z"/></svg></span>Thomas A. Christensen II</a></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
trichloroethylene by acting as buffers and reducing protons to hydrogen gas. In
this thesis, the challenges posed by systems that contain both diffusion and
reaction processes for protons are considered mathematically, and a computer
simulation to was developed to prove the relationship between diaphragm cell lag
period and reactive capabilities of membranes. Two polyoxometalate compounds,
sodium decavanadate and alumina sulfate, were successfully incorporated into a
poly(vinyl alcohol) hydrogel membrane, and the diffusivity changes associated
with each compound was determined. It was found that the diffusivity of protons
through an unmodified 10% w/v poly(vinyl alcohol) membrane was 1.76 ×
10<sup>-5</sup>
cm<sup>2</sup>
s<sup>-1</sup>
, the diffusivity through a
10%/2% w/w/v poly(vinyl alcohol)/sodium decavanadate membrane was 3.10 ×
10<sup>-6</sup>
cm<sup>2</sup>
s<sup>-1</sup>
, and the diffusivity through a
10%/2% w/w/v poly(vinyl alcohol)/alumina sulfate membrane was 3.32 ×
10<sup>-7</sup>
cm<sup>2</sup>
s<sup>-1</sup>
. Through analysis of the
diaphragm cell lag period, it was found the incorporation of sodium decavanadate
did not increase the reactivity of a poly(vinyl alcohol) hydrogel, and
incorporation of alumina sulfate lowered the reactivity. These results indicate
that polyoxometalate integration into hydrogel membranes is feasible, but does
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not provide any advantage to a bioremediation scenario.</p><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>
<iframe src=https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2 style=width:100%;height:75vh></iframe></section></main></div><footer><img src=/graphics/brandedbull.min.svg height=95rem><p>&copy; 2020 Thomas A. Christensen II<br>Licensed
<a rel=license href=http://creativecommons.org/licenses/by/4.0/>CC-BY 4.0</a><br>Built with <a href=https://gohugo.io>Hugo</a> v0.111.3</p></footer><script data-goatcounter=https://millironx.goatcounter.com/count async src=//gc.zgo.at/count.js></script></body></html>
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