Zhehao Wei

Sorption of aqueous organic molecules and amino acids on mineral surfaces: determination of binding geometry, local water structure and topological interactions

Lead Institution

Lawrence Berkeley National Laboratory

Principal Investigator

Glenn Waychunas

Project type

Large-Scale EMSL Research

A large frontier in geochemistry is the interaction of organic species with mineral surfaces. Compared to inorganic sorbates which form covalent and hydrogen bonds, organic structures may have…

Probing surface hydroxyls of iron oxides by Sum Frequency Generation Spectroscopy

Lead Institution

Umea University

Principal Investigator

Jean-Francois Boily

Project type

Large-Scale EMSL Research

This work was devised to contribute to a new basis of understanding of mineral surface reactivity using Sum Frequency Generation (SFG) spectroscopy. As it is primordially focused on iron oxide…

Well-defined Metal-Oxide Catalysts to Understand Fundamental Chemical Transformations

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Charles Peden

Project type

Large-Scale EMSL Research

Catalytic materials for the full and complex range of chemical transformations being considered for upgrading biomass-derived molecules to fuels and chemicals include metals dispersed on oxide- and…

Molecular Structure and Interaction at Aqueous, Non-Aqueous Liquid Interfaces and Catalytic Solid Surfaces

Lead Institution

Fudan University

Principal Investigator

Hongfei Wang

With the development of surface nonlinear spectroscopy in the last two decades, it is now possible to interrogate the molecular details of the structure and interactions at molecular interfaces. This…

High-Resolution Sum-Frequency Generation Vibrational Spectroscopy
Capability Development Project WBS

Lead Institution

Fudan University

Principal Investigator

Hongfei Wang

The objective of this WBS element is to further develop experimental and user service capability to perform surface nonlinear spectroscopy and dynamics measurements with both high spectral resolution…

Molecular Surface Spectroscopy of Secondary Organic Aerosol Particles

Lead Institution

Northwestern University

Principal Investigator

Franz Geiger

Project type

Large-Scale EMSL Research

This proposal focuses on applying EMSL's high-resolution vibrational spectroscopy (hr-SFG) capabilities (Hongfei Wang), nano-DESI high-resolution mass spectrometry analysis techniques (Julia and…

Structural Investigation of Crystalline Cellulose in Plant Cell Walls Using High-Resolution Non-linear Spectroscopy and Microscopy

Lead Institution

Pennsylvania State University

Principal Investigator

Seong Kim

Project type

Large-Scale EMSL Research

Plants use much of the carbon and solar energy captured during photosynthesis to produce cell walls, which are a valuable resource of renewable energy. Plant cell walls are processed for use as…

Exploring the Molecular Driving Forces for Lanthanide and Actinide Complexation and Partitioning to Mineral Interfaces

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Sue Clark

Project type

Large-Scale EMSL Research

In this project, we will use a combination of optical spectroscopy techniques (time-resolved fluorescence and sum-frequency generation) and computational methods (molecular dynamics, density…

Molecular Interactions at the Interface of Engineered Nanoparticles and Biological Membranes

Lead Institution

University of Wisconsin, Madison

Principal Investigator

Joel Pedersen

Project type

Large-Scale EMSL Research

The proposed project focuses on applying EMSL's outstanding capabilities in super resolution and single-molecule fluorescence microscopy (Galya Orr), high-resolution vibrational spectroscopy (hr…

Cooperative Interactions of Marine Macromolecules at the Air-Water Interface

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Philip Rasch

Project type

Large-Scale EMSL Research

Sea spray aerosol (SSA) particles formed from bubbles bursting at the ocean surface contain a large fraction of organic matter. The presence of this organic matter is driven by the adsorption of…

Nonlinear Vibrational Spectroscopy Characterizing Model Atmospheric, Geological, Environmental, and Biological Surfaces and Interfaces

Lead Institution

Fudan University

Principal Investigator

Hongfei Wang

We propose to use SFG-VS to study the vibrational spectroscopy at aqueous and non-aqueous solution surfaces, aqueous solution/oxides surfaces and interfaces of model molecular systems that is related…

Projects