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Zheming Wang

Institution
Pacific Northwest National Laboratory
ORCID
ORCID logo 0000-0002-1986-4357

Projects

Microscopic Mass Transfer on U(VI) and Tc(VIII) in Subsurface sediments

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Chongxuan Liu
Project type
Limited Scope
This project will investigate microscopic mass transfer process and its influence on and coupling with geochemical and biogeochemical reactions in subsurface sediments. The research will focus on…

Characterization of Synthetic Mixed Valence U Compounds

Lead Institution
The George Washington University
Principal Investigator
Christopher Cahill
Project type
Exploratory Research
The efforts proposed herein will explore the synthetic reaction conditions necessary to produce and stabilize pentavalent uranium oxide species under hydrothermal conditions. U(V) is a fleeting…

Microscopic Mass Transfer of U and Tc in Subsurface Sediments

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Chongxuan Liu
Project type
Exploratory Research
This project will investigate microscopic mass transfer process and its influence on and coupling with geochemical and biogeochemical reactions in subsurface sediments. The research will focus on…

Remediation & Closure Science Project/ Subsurface Science Tasks (Zachara/Freshly, EM-closure, PNNL Scope #47040). [was aka S & T Road Mapping for Needs From All Sources (PNNL Scope #30998)].

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
John Zachara
Project type
Exploratory Research
Hanford Remediation and Closure Science Project The Hanford Site Groundwater Protection Program, formerly the Groundwater/ Vadose Zone Integration Project, was established in 1997 to develop the…

300 Area Post-Treatment Uranium Solubility

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Zheming Wang
The objective of this study is to investigate the mobility of uranium after reaction of contaminated sediments with phosphate solutions injected at the 300 Area. Boreholes samples that were collected…

Zero Emission Research & Technology (ZERT) CO2 Sequestration Leakage Evaluation Task: Parameterization of Leakage from Geologically Sequestered CO2 (PNNL Scope # 46379).

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Christopher Thompson
Project type
Exploratory Research
Understanding, characterizing, and ultimately quantifying leakage rates of geologically sequestered CO2 through the confining layers (caprock) is critical to site monitoring and verification (SMV),…

The Organic Surfactant Pool on Secondary Organic Aerosol Particles

Lead Institution
Northwestern University
Principal Investigator
Franz Geiger
Project type
Large-Scale EMSL Research
Secondary organic aerosol (SOA) particles particles rank among the least understood atmospheric constituents in the climate system. Key questions concern their poorly quantified roles in cloud…

CONTROLLED DEFECT GENERATION IN POROUS SILICON

Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Donald Baer
Project type
Exploratory Research
Nanoporous silicon surface has been subject to considerable study because of its photoemmsion properties and possible opto-chemical, gas and bio sensing applications. The ability to get controlled…

Crystal Perfection in Cadmium Zinc Telluride Radiation Detectors

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Mary Bliss
Project type
Exploratory Research
This effort is to collect high resolution x-ray diffraction data to correlate with thermally stimulated current measurements. The samples are cadmium zinc telluride which have the potential to be…

Building a Predictive Understanding of Particle-Based Mineral Growth

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James De Yoreo
Project type
Large-Scale EMSL Research
Traditional models of mineral formation through monomer-by-monomer addition have been challenged by recent evidence for crystallization through the addition of "particles," ranging from…

Development of an integrated atomic force / fluorescence microscope at EMSL

Lead Institution
The Ohio State University
Principal Investigator
Brian Lower
Project type
Large-Scale EMSL Research
We propose to develop a new spectroscopic/microscopic capability at EMSL that combines atomic force microscopy (AFM) with fluorescence microscopy allowing for simultaneous force and fluorescence…

Structure and Catalytic Activity of Supported Early Transition Metal Oxide Clusters (Kay's BES/Chemical Physics-Catalysis WBS0502 of Peden's BES-Chemical Transformations at Complex Interfaces, PNNL Scope #47319)

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Zdenek Dohnalek
Project type
Exploratory Research
Current commercial heterogeneous catalysts are structurally and chemically complex and measurements on them can seldom be interpreted with atomic-level precision. This is especially so for supported…

photo-luminescence of nano-oxides

Lead Institution
Motorola
Principal Investigator
Yong Liang
Project type
Exploratory Research
to determine the photo-luminescence property and the lifetime of photo-excited electrons and holes. Need to conduct PL measurements (both regular and time-resolved) on SrTiO3 and Cu2O samples.

Influence of Speciation on the Transport of U(VI) through Hanford Sediments

Lead Institution
Oak Ridge National Laboratory
Principal Investigator
Melanie Mayes
Project type
Exploratory Research
Uranium(VI) in the subsurface at the Department of Energy's (DOE) Hanford site poses a significant risk to the quality of the Columbia River and to future populations. Coupled hydrological and…

Chemically-selective Sensor Film Characterization

Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Zheming Wang
Project type
Exploratory Research
A new film material comprised of quaternized poly(4-vinylpyridine) cross-linked with 1,10-diiododecane (herein QPVP) has been developed for possible use in the spectroelectrochemical sensor for…