Paul Thoen

Title: Paul Thoen: Innovator in Palladium Membrane Technology

Introduction

Paul Thoen is a notable inventor based in Littleton, CO (US), recognized for his contributions to the field of membrane technology. With a focus on palladium alloy membranes, he has developed innovative methods that enhance the performance and efficiency of these materials. Thoen holds 2 patents, showcasing his commitment to advancing technology in this area.

Latest Patents

Thoen's latest patents include "Unsupported Palladium Alloy Membranes and Methods of Making Same." This invention provides support-free palladium membranes and methods for their production. Single-gas testing of the unsupported foils produced hydrogen permeabilities equivalent to thicker membranes created by cold-rolling. Defect-free films as thin as 7.2 microns can be fabricated, achieving ideal H/N selectivities as high as 40,000. Additionally, homogeneous membrane compositions may also be produced using these methods.

Another significant patent is "Method of Making Sulfur-Resistant Composite Metal Membranes." This invention offers thin, hydrogen-permeable, sulfur-resistant membranes formed from palladium or palladium-alloy coatings on porous ceramic or metal supports. The methods disclosed involve sequential electroless plating techniques, which include decomposing any organic ligands present on the substrate, reducing the palladium crystallites, depositing a palladium film, and then adding a second gold film. These two metal films are subsequently annealed at temperatures between about 200°C and about 1200°C to create a sulfur-resistant, composite PdAu alloy membrane.

Career Highlights

Thoen is affiliated with the Trustees of the Colorado School of Mines, where he continues to contribute to research and development in membrane technology. His work has significant implications for various applications, particularly in hydrogen separation and purification processes.

Collaborations

Thoen has collaborated with notable colleagues, including J Douglas Way and Mark Thomas Lusk, enhancing the impact of his research through teamwork and shared expertise.

Conclusion

Paul Thoen's innovative work in palladium membrane technology exemplifies the importance of research and development in advancing materials science. His patents reflect a commitment to creating efficient solutions that address contemporary challenges in the field.