Daniel Perea

Development of Atmospheric Pressure Environmental (APE) Chamber for Chemical Imaging of Aerosol, Plant, and Soil Samples

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Zezhen Cheng

Maintaining low-pressure (∼2×10−6-10 Torr) inside the Environmental Scanning Electron Microscope (ESEM) chamber is the major challenge in pressure- and/or relative humidity (RH)-sensitive sample (e.g…

Investigation of Field-Assisted Surface Chemistry by Atom Probe Tomography

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sten Lambeets

Addressing the negative impact of CO2 on the global environment requires a multifaceted mitigation strategy which includes CO2 conversion to higher value compounds, satisfying both economic and…

Site specific atomic resolution chemical imaging to probe structure-property relationship under dynamic and/or operando conditions using in-situ and ex-situ methods based on multi-instrument approach

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Chongmin Wang

The goal of this proposal is to develop chemical imaging capabilities that drive the atomic-level imaging and spectroscopic analysis of materials related to energy and environmental issues under in…

Correlative Imaging and Spectroscopy of Biological Systems and Structural Dynamics

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

James Evans

The overall objective of this project is to create an integrative capability for combining dynamic transmission electron microscopy with femtosecond x-ray diffraction, in situ and automated secondary…

Extracellular Research Thrust for EMSL SSA

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Kirsten Hofmockel

This project will develop a conceptual framework that defines the biotic and abiotic mechanisms regulating the persistence of mineral associated organic matter (OM). The specific goals are to…

Electronic and Optical Properties of Doped Complex Oxide Epitaxial Films and Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Scott Chambers

Project type

Large-Scale EMSL Research

The effect of A-cation site and anion-site doping, as well as heteroepitaxial interface formation, on the electronic and optical properties of La-based perovskites will be investigated. Specimens…

Atom-probe tomography of epitaxial complex oxide nanocomposites

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

The goal of this proposal is to study the interfacial composition of between immiscible complex oxides and spinel oxide nanostructures using atom probe tomography in order to understanding the…

Probing the mechanism of CO2 hydrogenation over Co and Fe single nanoparticles: Route to nanoparticle structural intimacy by Atom Probe Tomography

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

Addressing the negative impact of CO2 on the global environment requires a multifaceted mitigation strategy which includes CO2 conversion to higher value compounds, satisfying both economic and…

Improving Geochemical Source-term Models though an Increased Understanding of the Structure, Reactivity, and Dynamics of Nuclear Waste Form Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Joseph Ryan

Project type

Large-Scale EMSL Research

EMSL resources are requested to enable an international team of collaborators to solve fundamental problems in interfacial glass corrosion chemistry. With the recent dismissal of Yucca Mountain as…

Carbon, Oxide, Metal Sequestration Mechanisms of Hot Springs Microbial Communities: Establishing a Technical Platform for Chemical Imaging Investigation

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Sherry Cady

Though microbes can indirectly and metabolically transform, sequester, and transport (i) ions, (ii) organic and inorganic complexes, and (iii) precipitates via a wide range of mechanisms,…

Correlated Multimodal in situ Gas-Metal Alloy Surface Reaction Studies

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Arun Devaraj

This project will bring together a technically-diverse group of early career staff scientists across all directorates, for a comprehensive demonstration of PNNL capabilities for multimodal in situ…

Correlative compositional mapping and electronic transport of p-n heterostructured semiconductor nanowires for photovoltaic applications

Lead Institution

Los Alamos National Laboratory

Principal Investigator

Samuel Picraux

Project type

Large-Scale EMSL Research

The p-n junction can be regarded as the most important electronic structure that is responsible for the ubiquity of semiconductor microelectronics today and are found in a wide range of devices from…

Characterization of Nb Films

Lead Institution

Hewlett-Packard Company

Principal Investigator

Douglas Ohlberg

3-D chemical imaging of HP supplied Nb oxide and Nb nitride thin films. These films will be prepared using the EMSL FEI Helios Nanolab dual-beam focused ion beam/scanning electron microscopy (FIB/SEM…

Characterization of Interfacial Reactivity, Geochemistry, Transport, and Biodegradation for Nuclear Waste Forms

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Joseph Ryan

This research is part of an international collaborative effort to address the wide diversity of environmental roles that radionuclides can play during their lifetime within corroding nuclear wastes…

Development of Catalysts for the Selective Conversion of Biomass Derived Products to Fuels

Lead Institution

Virginia Polytechnic Institute

Principal Investigator

Ayman Karim

The large increase in energy demand by emerging economies and the environmental concerns over the use of fossil fuels has led to the focus on renewable energy sources such as biomass. Several…

Investigation of Thermal Aging Effects on the Evolution of Microstructure and
Mechanical Properties of Cast Duplex Stainless Steels

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

This proposal spans a collaboration between EMSL and the University of Maryland under a Nuclear Energy University Program grant. The objectives of the proposed research project are to (1) develop a…

Novel Analyses of Hanford Plutonium Particles

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Dallas Reilly

Understanding the chemical speciation of plutonium particles currently in the ground at the Hanford site has major implications for nuclear forensics (looking back in time at which processes produced…

Correlative Imaging and Spectroscopy of Biological Systems and Structural Dynamics

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

James Evans

The overall objective of this project is to create an integrative capability for combining dynamic transmission electron microscopy with femtosecond x-ray diffraction, in situ and automated secondary…

Advanced Techniques for Nuclear Materials Characterization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Dallas Reilly

PNNL is home to state of the art research capabilities, which are often underutilized on radioactive samples due to non-dispersion requirements and limits on sample quantity that can enter workspaces…

Probing the mechanism of COR2R hydrogenation over Co and Fe single nanoparticles: Route to nanoparticle structural intimacy by Atom Probe Tomography

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

Addressing the negative impact of COR2R on the global environment requires a multifaceted mitigation strategy which includes COR2R conversion to higher value compounds, satisfying both economic and…

Characterization of Catalyst Materials in the Electron and Atom Probe Microscopes

Lead Institution

Argonne National Laboratory

Principal Investigator

Ilke Arslan

The overall goal of this proposal is to develop a fundamental understanding of how to predict, synthesize, and control the compositions, structures, and catalytic function of supported metal clusters…

Atom-probe tomography of epitaxial complex oxide nanocomposites

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

The goal of this proposal is to study the interfacial composition of between immiscible complex oxides and spinel oxide nanostructures using atom probe tomography in order to understanding the…

Application of machine learning to APT data to trace nanoscale protein structure

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

The objective of this project is the development and application of deep learning algorithms aimed at extracting molecular structure within Atom Probe Tomography (APT) data collected from protein…

The Role of Interfacial Water on Mineral Transformations in Wet Supercritical CO2

Lead Institution

Washington State University

Principal Investigator

Andrew Felmy

Project type

Large-Scale EMSL Research

We propose a comprehensive experimental and theoretical investigation of the molecular mechanisms governing the role of interfacial water in the reactivity of mineral phases in supercritical carbon…

Combined Surface Characterization and Computation Study of a LaxZryOz Catalyst for the Catalytic Upgrading of Biomass-derived Compounds into Biofuels and Renewable Chemicals

Lead Institution

Archer Daniels Midland Company

Principal Investigator

Karl Albrecht

Catalytic upgrading of biomass is a challenging task in part because of the presence of water. Many conventional catalysts were developed for petroleum-based feedstocks. Often these catalysts are…

Correlated Multimodal in situ Gas-Metal Alloy Surface Reaction Studies

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Arun Devaraj

This project will conduct a comprehensive demonstration of PNNL capabilities for multimodal in situ chemical imaging of structural, compositional and chemical state changes on metallic alloy surfaces…

3-D acid site determination in zeolite crystals as a function of porosity and reaction conditions

Lead Institution

Stanford Linear Accelerator Center

Principal Investigator

Simon Bare

Project type

Large-Scale EMSL Research

Zeolites are microporous aluminosilicate materials with a wide range of applications including catalysis, water purification, agriculture, and laundry detergents. In the petrochemical industry,…

Investigation of Thermal Aging Effects on the Evolution of Microstructure and
Mechanical Properties of Cast Duplex Stainless Steels

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

This proposal spans a collaboration between EMSL and the University of Maryland under a Nuclear Energy University Program grant. The objectives of the proposed research project are to (1) develop a…

Compositional and structural analysis of environmentally sensitive materials at the atomic scale by correlative APT and TEM studies

Lead Institution

E.A. Fischione Instruments, Inc.

Principal Investigator

Cecile Fitzz

Project type

Scientific Partner

The proposed work will aid in the development of a protocol that enables the preparation, handling, and transfer of samples under controlled environmental conditions for correlative analyses with…

Improving Climate Records Through a Mechanistic Understanding of Sub-Micron Heterogeneity in Environmental Materials

Lead Institution

University of Washington

Principal Investigator

Alexander Gagnon

Project type

Large-Scale EMSL Research

From the pace of the ice ages to how the carbon cycle has changed through time, much of what we know about earth history and climate dynamics is based on proxies. Recorded as trace element anomalies…

Advanced Techniques for Nuclear Materials Characterization

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Dallas Reilly

PNNL is home to state of the art research capabilities, which are often underutilized on radioactive samples due to non-dispersion requirements and limits on sample quantity that can enter workspaces…

Grain Boundary Analysis of U-6Nb Binary Uranium Alloy

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Dallas Reilly

In applications of uranium - 6 wt% niobium (U-6Nb) important to NNSA, its mechanical properties are exploited by engineers to achieve desirable mechanical response. When U-6Nb is heated for short…

Structural evolution and phase transformation characteristics of amorphous silicon upon lithiation and delithiation

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Scott Lea

Amorphous silicon (a-Si) has been identified as a candidate high capacity anode material for lithium ion batteries. A fundamental challenge with a-Si is the large volume change upon lithium…

Proteomic view of the iron deficiency response in Dunaliella

Lead Institution

University of California, Berkeley

Principal Investigator

Sabeeha Merchant

Project type

Large-Scale EMSL Research

Algae are responsible for half of global primary productivity and have an important role in biogeochemical cycling. Algae can thrive in nutrient-rich and nutrient-depleted environments, indicating…

Assessment of EUV Atom Probe Tomography for Mass Spectral Analysis of Biomolecules

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

A Local Electrode Atom Probe (LEAP) Atom utilizing a pulsed, coherent, extreme ultraviolet (EUV) source will be used for the first time for mass-spectral and 3D atomic-scale reconstruction analysis…

The role of organic/inorganic interfaces in a biological single crystal growth/carbon sequestration process.

Lead Institution

Northwestern University

Principal Investigator

Derk Joester

Project type

Limited Scope

In this rapid access proposal, we aim to corroborate experiments by graduate students Ching-Hsuan Wu and Emilie Campbell that challenge the currently accepted model of calcite (CaCO3) single crystal…

Mapping Deuterium in Steel via Cryogenic Atom Probe Tomography Analysis

Lead Institution

Cameca Instruments Inc.

Principal Investigator

Daniel Lawrence

The unintended incorporation of hydrogen (H) into steel is known to produce negative effects on mechanical properties, specifically causing what is known as hydrogen embrittlement. Knowing the…

Investigation of Field-Assisted Surface Chemistry by Atom Probe Tomography

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sten Lambeets

Addressing the negative impact of CO2 on the global environment requires a multifaceted mitigation strategy which includes CO2 conversion to higher value compounds, satisfying both economic and…

Correlative Imaging and Spectroscopy of Biological Systems and Structural Dynamics

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

James Evans

The overall objective of this project is to create an integrative capability for combining dynamic transmission electron microscopy with femtosecond x-ray diffraction, in situ and automated secondary…

Mapping Deuterium in Steel via Cryogenic Atom Probe Tomography Analysis

Lead Institution

Cameca Instruments Inc.

Principal Investigator

Ty Prosa

The unintended incorporation of hydrogen (H) into steel is known to produce negative effects on mechanical properties, specifically causing what is known as hydrogen embrittlement. Knowing the…

Developing Data Analytical Tools to Map Crystalline Defects from APT 3D Compositional Point Cloud Maps

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

The atom-by-atom 3D point cloud composition mapping produced by Atom Probe Tomography (APT) provides the potential to directly measure nanocrystalline structure and identify specific lattice defects,…

A multi-modal approach to understanding the structural evolution and phase transformation of amorphous silicon upon lithiation insertion and extraction

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Scott Lea

Amorphous silicon (a-Si) has been identified as a candidate high capacity anode material for lithium ion batteries. A fundamental challenge with a-Si is the large volume change upon lithium…

Improving Radiological Fate and Transport Models though an Increased Understanding of Interfacial Reactivity, Geochemistry, Transport, and Biodegradation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Joseph Ryan

This research is part of an international collaborative effort to address the wide diversity of environmental roles that radionuclides can play during their lifetime within corroding nuclear wastes…

Developing a first principles-based model of a multi-faceted single catalytic grain Fe

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

Recently, our group has developed a unique capability that allows the application of Atom Probe Tomography (APT) in a novel fashion to study chemical reactions on reactive metal surfaces with atomic…

Investigation of Thermal Aging Effects on the Evolution of Microstructure and
Mechanical Properties of Cast Duplex Stainless Steels

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

This proposal spans a collaboration between EMSL and the University of Maryland under a Nuclear Energy University Program grant. The objectives of the proposed research project are to (1) develop a…

Structure and Chemical Mapping of Soil Organic Matter on Mineral Surfaces

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Ravi Kukkadapu

Secreted and decomposing soil organic matter (SOM) containing carbon, nitrogen, phosphorus, and metals form the basis of many bio/organic matter-mineral interactions in soils. These compounds are …

Investigation of Thermal Aging Effects on the Evolution of Microstructure and
Mechanical Properties of Cast Duplex Stainless Steels

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Daniel Perea

This proposal spans a collaboration between EMSL and the University of Maryland under a Nuclear Energy University Program grant. The objectives of the proposed research project are to (1) develop a…

Visualizing pathways in cells for more accurate biodesign

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

James Evans

In this Capability Development Focus project, we plan to acquire label-free whole cell three-dimensional (3D) tomograms of the two primary organisms of interest for the FY18 Subcellular SSA thrust…

Projects