Chen G. – TechConnect Briefs

A novel nano-sized polymer microsphere as a potential shale stabilizer in water-based drilling fluids

Xu J., Qiu Z., Chen G., Zhong H., Zhao X., China University of Petroleum, CN

Borehole instability caused by pore pressure transmission and shale hydration gives rise to a number of problems, which has been a challenge during oil and gas drilling process for many years [1]. Recent years, the [...]

Development and Testing of Thermosensitive Poly(NIPAm-AA)/Nano-SiO2 Composite Blocking Agent for Shale Gas Drilling Operations

Wang W., Qiu Z., Chen G., Zhong H., Huang W., Cao J., China University of Petroleum, CN

Nanotechnology has already contributed significantly to technological advances in energy industry and has the potential to revolutionize the drilling industry. Traditional blocking agents are difficult to form effective mud cake to prevent liquid penetration due [...]

Low Temperature Plasma Surface Treatment of Catalytic Material

Miley G.H., Srivastava S., Kim K-J, Chen G., Uiversity of Illinois and NPL Associates, US

We are developing a low temperature plasma treatment to modify the surfaces of various heterogeneous catalytic materials. The plasma modification has been shown to radically change the surface morphology of various catalytic materials including nickel, [...]

Catalytic Performance Enhancement by Low Temperature Plasma Treatment

Miley G.H., Srivastava S.N., Chen G., UiUC/NPL Associates, US

Polymer Electrolyte Membrane (PEM) fuel cell electrocatalysts are composed of noble metals (e.g. platinum), which are scarce and expensive. A simple plasma-surface modification method is described to increase the performance of PEM fuel cell catalytic [...]

Role of Nanoparticles in Life Cycle of Nanocomposites

Gu X., Chen G., Zhao M., Watson S.S., Zhe D., Stutzman P.E., Nguyen T., Chin J.W., Martin J.W., NIST, US

This study is to investigate the role of ZnO nanoparticles in the life cycle of a waterborne polyurethane (PU) nanocomposite during UV exposure. The specimens were exposed to the NIST SPHERE (Simulated Photodegradation via High [...]

Subsurface characterization of high dielectric nanostructures in low dielectric polymer matrix using Electric Force Microscopy and Scanning Electron Microscopy

Zhao M., Ming B., Stutzman P., Chen G., Gu X., Park C., Jean Y.C., Nguyen T., National Institute of Standards and Technology, US

Scanning Probe Microscopy (SPM) and Scanning Electron Microscopy (SEM) are two powerful techniques for surface characterization of nanostructures. With the development of nanotechnology, there is a growing need to nondestructively characterize nanostructures at the subsurface [...]