The Hybrid Organic Inorganic Materials
group specializes in polymer and polymer-inorganic composite
materials synthesis and characterization. We embrace the
“membranes by design” philosophy of the Chemical
& Biological Systems Department. Our strengths are
new material synthesis, membrane transport characterization,
and developing structure-property relationships to guide material
optimization. We are primarily an experimental group although
we collaborate with theorists and materials modeling experts.
approach is driven by the specific needs of the target application.
Current application areas of interest are
Exchange Membranes for Fuel Cells
Transport Membranes for Water Purification by Reverse Osmosis
We also undertake specialized projects in sensor coatings, nanoparticle
encapsulation, functional gels, and other materials research.
group collaborates with a wide range of scientists at Sandia,
other National Labs, academia, and industry spanning from the
fundamental to applied technology.
primary facilities consist of:
two wet chemistry labs, one gas permeation lab with three automated
permeators, a fuel cell lab including facilities for preparing
MEAs with our membranes and other experimental materials such
as catalyst and gas diffusion layers, and a membrane transport
possess or have regular access to most major analytical techniques
including: a full thermal analysis suite, nuclear magnetic resonance
spectrometers for chemical identification and diffusion measurements,
confocal and electron microscopy, membrane proton conductivity,
electrochemical characterization, impedance spectroscopy, membrane
separated cells for permeation measurements in liquid and gas,
a gas chromatograph, electrophoretic membrane cell, stirred
and crossflow cells for measuring salt rejection, fouling, and
water transport of water purification membranes.