Do Heui Kim | Environmental Molecular Sciences Laboratory

NOx Adsorber Materials: Fundamental Studies, and Investigations of Sulfur Poisoning and Thermal Deactivation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Charles Peden

Project type

Large-Scale EMSL Research

One of the key challenges facing the catalysis community is the elimination of harmful gases emitted by internal combustion engines. In particular, the reduction of NOx from an exhaust gas mixture…

Visualization of soot-trapped diesel particulate filters (DPF) using nuclear magnetic resonance imaging

Lead Institution

Ulsan National Institute of Science and Technology

Principal Investigator

Ja Hun Kwak

Project type

Capability Research

Legislators in the United States and Europe have been aggressive in the pursuit of diesel engine particulate control, especially focusing on the reduction of particulate matter below 2.5 microns in…

Changes of surface area of diesel soot as a function of oxidation

Lead Institution

Seoul National University

Principal Investigator

Do Heui Kim

Project type

Exploratory Research

Soot is unwanted product from diesel engine emission. In order to remove the soot by combustion effectively, information about its characteristics are required. Among those, the changes of surface…

NOx Adsorber Materials: Fundamental Studies, and Investigations of Sulfur Poisoning and Thermal Deactivation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Charles Peden

Project type

Large-Scale EMSL Research

Catalysits systems related to automotive exhaust control will be investigated. Specifically, the focus will be on catalysts that are important in lean NOx emission control (NOx storage/reduction …

XPS characterization of diesel soot materials

Lead Institution

Seoul National University

Principal Investigator

Do Heui Kim

Project type

Exploratory Research

The soot material from diesel engine is the primary concern environmentally. The researchers are trying to reduce the soot emission by using the "Diesel particulate filter" or soot…

Investigation of cobalt active sites in cobalt-based catalyst for higher alcohol synthesis from synga

Lead Institution

Seoul National University

Principal Investigator

Do Heui Kim

Project type

Exploratory Research

The higher alcohol synthesis, which produces higher alcohol (C6-C18 alpha alcohol) for transportation fuel or fuel additives by reacting synthesis gas (CO and H2), is at the heart of the gas-to…

Investigation of role of lanthanum oxide in cobalt/cobalt carbide active cobalt-based catalyst for higher alcohol synthesis from biomass derived syngas

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Vanessa Dagle

Project type

Exploratory Research

With the depletion of petroleum reserves and increasing concern about the global climate change, catalytic conversion of coal and biomass derived syngas into mixed alcohols may play an important role…

Elucidation of Catalyst Fouling Mechanisms in Bio-Oil Hydroprocessing

Lead Institution

Seoul National University

Principal Investigator

Do Heui Kim

Project type

Exploratory Research

As a part of the scope of work for the project, "Catalytic Deoxygenation of Pyrolysis Oils," which was funded through the DOE-EERE Office of the Biomass Program solicitation DE-FOA-0000342,…

Understanding NOx SCR Mechanisms and Activity on Cu/Chabazite Structures throughout the Catalyst Life Cycle

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Charles Peden

Project type

Large-Scale EMSL Research

This proposed EMSL use will enable research that has been recently funded at PNNL by the Department of Energy (DOE), and at the remainder of the partner institutions by a joint DOE/National Science…

Understanding NOx SCR Mechanisms and Activity on Cu/Chabazite Structures throughout the Catalyst Life Cycle

Lead Institution

Washington State University

Principal Investigator

Jean-Sabin McEwen

Project type

Large-Scale EMSL Research

This proposed EMSL use will enable research that has been recently funded at PNNL by the Department of Energy (DOE), and at the remainder of the partner institutions by a joint DOE/National Science…

Fundamental Studies of NOx Adsorber Materials (Chuck Peden's EE Project - 47120)

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Charles Peden

Project type

Exploratory Research

This program is a multi-year effort at Pacific Northwest National Laboratory to develop a fundamental understanding of the operation of NOx adsorbers, and to share this understanding with bench…

Investigation of Ba-based NOx storage-reduction catalyst by Raman spectrometer (PNNL Title: Mechanisms of sulfur poisoning of NOx adsorber materials, Scope # 43315).

Lead Institution

Seoul National University

Principal Investigator

Do Heui Kim

Project type

Exploratory Research

NOx storage-reduction (NSR) catalysts are used in engines operating alternatively under lean and rich conditions to reduce the fuel consumption of vehicles. Typical NSR catalysts consists of a NOx…

Investigation of soot morphology and microstructure with respect to the oxidation

Lead Institution

Cummins, Inc.

Principal Investigator

Aleksey Yezerets

Project type

Capability Research

It was found that initial stages of oxidation of diesel soot are accompanied by the high reaction rate. However, upon oxidation of the first several percent of carbon, initial high reactivity is lost…

Olefins by High-Intensity Oxidation (Scope 46868)

Lead Institution

Washington State University

Principal Investigator

Yong Wang

Project type

Exploratory Research

Velocys, Inc., the Dow Chemical Company, and Battelle, management and operations contractor of the Pacific Northwest National Laboratory (PNNL), will develop processes to create Olefins by High…

Hydrogen Production - (Steam reforming of Biomass Scope 46621)

Lead Institution

Washington State University

Principal Investigator

Yong Wang

Project type

Exploratory Research

The work on this task will focus on steam reforming of ethanol for the direct production of H2 and CO2. This work addresses the following tasks of the Hydrogen, Fuel Cells & Infrastructure…

Early Transition Metal Oxides as Catalysts: Crossing Scales from Clusters to Single Crystals to Functioning Materials

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Charles Peden

Project type

Large-Scale EMSL Research

Current commercial heterogeneous catalysts are structurally and chemically complex and their experimental assessment can seldom be interpreted with atomic-level precision. We seek to reduce the…

Projects