Projects

Characterization of Bio-inspired Photonic Crystals for Enhancing Solar Energy Conversion by Single-Molecule Spectroscopy

Lead Institution

Oregon State University

Principal Investigator

Greg Rorrer

Project type

Large-Scale EMSL Research

Currently, there is a need for more efficient and cost-effective conversion of solar energy to electricity. The efficiency of photovoltaic solar cells is compromised by the mismatch between the…

Michael Knoblauch's Proposal
Molecular Structure and Interaction of Forisome Filaments

Lead Institution

Washington State University

Principal Investigator

Michael Knoblauch

Project type

Large-Scale EMSL Research

Emerging technologies are creating increasing interest in smart materials that may serve as actuators in micro- and nanodevices. Mechanically active polymers currently studied include a variety of…

Impact of Reactive Halogen Species on the Air Quality in Southern California Coastal Areas

Lead Institution

Washington State University

Principal Investigator

Bertram Jobson

Project type

Large-Scale EMSL Research

Air pollution in coastal urban centers remains one of the most serious environmental challenges in the State of California, and further efforts to improve air quality are a priority. Mitigation…

Analysis of Organic Oligomers Forming Secondary Aerosol from Wood Combustion-Derived Phenols

Lead Institution

University of California, Davis

Principal Investigator

Cort Anastasio

Project type

Large-Scale EMSL Research

Aqueous reactions of phenols will be studied in the laboratory using well defined solutions over a range of conditions (e.g., phenol mixture, oxidant and pH) as surrogates for atmospheric drops. The…

Location of Probes in Membrane and Model Membrane Systems and Their Effects on Lipid Reorangization

Lead Institution

Colorado State University

Principal Investigator

Debbie Crans

Project type

Large-Scale EMSL Research

This proposal investigate how probes and metal complexes interact with lipid interfaces by studying location and their interaction with lipid interfaces as a launching point for studies relating to…

High Resolution Fourier Transform Infrared Spectroscopy Studies of Multidimensional H Transfer in Tropolone/Tropolonoid Molecules-a Bridge to the Behavior in Biological Systems

Lead Institution

Texas Technical University

Principal Investigator

Richard Redington

Project type

Large-Scale EMSL Research

In the year 2000 high resolution infrared spectroscopy experiments conducted in EMSL at PNNL were initiated on the nonrigid gaseous tropolone molecule (2-hydroxy-2,4,6-cycloheptatrien-1-one). On the…

Fabrication of a Carbon Nanotube Thermionic Cathode

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kyle Bunch

Project type

Large-Scale EMSL Research

We propose to fabricate a thermionic cathode based on carbon nanotubes as an emitting material. Electron sources compatible with microfabrication processes are critical for the advancement of…

Atomically Resolved Studies of Catalytic and Photocatalytic Processes on TiO2(110)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zdenek Dohnalek

Project type

Large-Scale EMSL Research

This proposal is a continuation of research under EMSL User Proposal #14591. In the last two decades, titanium dioxide has emerged as an extremely promising material with numerous applications in…

Effect of Changing Rainfall and Temperature on Biochemical Composition of Soil Organic Matter

Lead Institution

University of California, Merced

Principal Investigator

Asmeret Berhe

Project type

Large-Scale EMSL Research

We are proposing to use 13C-NMR spectroscopy to analyze the relative abundance of organic functional groups in soil organic matter (SOM) in order to better understand the stability of SOM under…

Global Cloud Resolving Model: Benchmarking, Data Access, and Model Testing

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Karen Schuchardt

Project type

Large-Scale EMSL Research

This EMSL Science Theme proposal is targeting use of the EMSL MPP2 cluster, Lustre file system, and visualization server to support the recently funded SciDAC proposal Community Access to Global…

Addressing Challenges in Nanoscale Characterization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Daniel Gaspar

Project type

Large-Scale EMSL Research

Nanoscale materials offer the promise of significant advances in fields as diverse as the production, storage and efficient use of energy, sensing and environmental remediation. The characterization…

The Relationship between Particle Properties and Ice Nucleation:
Laboratory and Field Investigation and Parameterization Development

Lead Institution

University of Wyoming

Principal Investigator

Xiaohong Liu

Project type

Large-Scale EMSL Research

Atmospheric aerosols impact the climate by scattering and absorbing solar radiation and in their role as cloud condensation nuclei (CCN). Cloud properties are strongly dependent on the number of CCNs…

The Role of Ice and Aerosol Surfaces in Halogen Activation in the Arctic Springtime Boundary Layer

Lead Institution

University of Alaska Fairbanks

Principal Investigator

William Simpson

Project type

Large-Scale EMSL Research

The UAF research group of Prof. Simpson is performing an intensive field campaign in Barrow, Alaska during March 2007. The goal of this field campaign is to quantify the amounts of reactive bromine …

Undoped and n-type doped TiO2 Anatase Surface Structures and Reactivity with Water.

Lead Institution

University of Wisconsin, Milwaukee

Principal Investigator

Carol Hirschmugl

Project type

Large-Scale EMSL Research

Of all the crystallographic forms of TiO2, anatase is technologically the most interesting. N-type doped TiO2 is useful for photocatalytic reactions, and in particular N-doped TiO2 has been…

Reductive Transformation of Iron Oxides: Coupled Solution and Solid-State Pathways

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kevin Rosso

Project type

Large-Scale EMSL Research

Reductive transformation of Fe(III)-oxides such as &#61537; Fe2O3 (hematite) by aqueous dissolution / re precipitation is a central part of the natural biogeochemical iron cycle in the…

Solid-State NMR Characterization of Semiconductor Nanoparticle/Polymer Interfaces

Lead Institution

The University of Akron

Principal Investigator

Matthew Espe

Project type

Large-Scale EMSL Research

Cadmium chalcogenide (CdX; X = S, Se, Te) semiconducting nanoparticles have unique optical, catalytic and energy transfer properties as a result of their nanoscale size diameters. These particles…

Chemistry and Microphysics of Small Particles

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Alla Zelenyuk-Imre

Project type

Large-Scale EMSL Research

This proposal is a continuation of research under EMSL User Proposal #17498. Atmospheric aerosol particles impact the global climate by scattering solar radiation to space and in their role as cloud…

Gregory Szulczewski's Proposal

Lead Institution

University of Alabama

Principal Investigator

Gregory Szulczewski

Project type

Large-Scale EMSL Research

Hydrogenation of 1-nitro-1-cyclohexene on an Au/TiO2 model catalyst Titanium dioxide is a well-known material for metal-supported catalysis and photocatalysis. In particular, the use of Au…

Hygroscopic Properties of Aerosol Organics

Lead Institution

Desert Research Institute

Principal Investigator

Douglas Lowenthal

Project type

Large-Scale EMSL Research

While organics constitute a large fraction of ambient aerosol mass, their role and effect on particle hygroscopic growth and cloud nucleation remains unclear. Organics are most often present in…

The Effect of Surface Active Organic Molecules on the Water Uptake, Shape and Density of Hygroscopic Particles of Atmospheric Importance

Lead Institution

University of Colorado at Boulder

Principal Investigator

Gayfree Ellison

Project type

Large-Scale EMSL Research

This proposal is a continuation of research under EMSL User Proposal #16741. Field measurements of aerosol compositions consistently reveal that organics make up a significant fraction of the…