Nanomaterials Chemistry

Nanomaterials Chemistry

The Nanomaterials Chemistry Group conducts fundamental research related to the synthesis and characterization of nanostructured materials, ionic liquids, and liquid and polymer electrolytes for fundamental investigations in separations, catalysis, and energy storage. The group also conducts applied research related to the application of nanomaterials and electrolytes in catalysts for energy conversion, novel electrodes for energy storage, electroplating, advanced scintillators for radiation sensing, and sensing devices for biological agents as well as the development of fibrous and nanoporous adsorbents for the extraction of valuable metals from extreme environments, such as seawater.

Publications

Solid-state synthesis of ordered mesoporous carbon catalysts via a mechanochemical assembly through coordination cross-linking

Ordered mesoporous carbons (OMCs) have demonstrated great potential in catalysis, and as supercapacitors and adsorbents. Since the introduction of the organic–organic self-assembly approach in 2004/...

Surfactant-Assisted Stabilization of Au Colloids on Solids for Heterogeneous Catalysis

The stabilization of surfactant-assisted synthesized colloidal noble metal nanoparticles (NPs, such as Au NPs) on solids is a promising strategy for preparing supported nanocatalysts for...

Ion-Gated Gas Separation through Porous Graphene

Porous graphene holds great promise as a one-atom-thin, high-permeance membrane for gas separation, but to precisely control the pore size down to 3–5 Å proves challenging. Here we propose an ion-...

Research

We employ computational chemical approaches to understand experimental results related to separations and other interfacial processes, as well as in the rational design of advanced nanomaterials and task specific ionic liquids.   Our research program takes advantage of the unique resources at ORNL, such as small-angle x-ray scattering at the Center for Nanophase Materials Sciences; small-angle neutron scattering at the High Flux Isotope Reactor and the Spallation Neutron Source; and structural analysis by a variety of electron microscopes (SEM, TEM, STEM, HRTEM) and powdered X-ray diffraction techniques.  Extensive synthetic capabilities exist within the group for the preparation of mesoporous materials, low-dimensional materials, sol-gel materials, and inorganic and hybrid materials or monoliths.  Solution phase synthesis, solvothermal, ionothermal, templating synthesis, chemical vapor deposition and atomic layer deposition methods are extensively utilized for tailored synthesis of nanostructured materials. An array of techniques for characterizing physical and chemical properties related to separation, catalysis, and energy storage are in place or are currently being developed. We extensively utilize DOE-BES User Facilities such as the Advanced Photon Source and Stanford Synchrotron Radiation Lightsource for performing advanced material characterization techniques. EndFragment