ARTICLES

Development of a piston expander for Rankine cycles: Tribological challenges
Summary Rankine cycles using piston expanders are a promising technology for waste heat recovery in heavy-duty vehicles. Piston expanders present tribological challenges however, as they must operate reliably at high temperature and with little or […]

Conversion of carbon dioxide to ethylene
By Dr. Neil Canter, Contributing Editor | TLT Tech Beat May 2023 A new type of catalyst has been developed that produces a five-fold enhancement in selectivity for producing ethylene from carbon dioxide. HIGHLIGHTS • […]

Improving the efficiency of catalytic converters
By Dr. Neil Canter, Contributing Editor | TLT Tech Beat May 2023 Placement of platinum atoms in a metal oxide is important in maximizing catalytic activity. HIGHLIGHTS • Positioning of single platinum atoms in certain […]

Tribology in renewable energy
Introduction Renewable energies and their technologies are the essential components for developing sustainable energy generation for the future. There are different ways technical difficulties are involved in these techniques which involve mechanical failures. The friction […]

Tribology of gears
Introduction Gears are the mechanical transmission elements that are toothed to transfer the motion and power between any mechanical components. They are widely used in various devices such as automobile parts, clocks, mechanical machines, bicycles, […]

Microtubular flow battery
HIGHLIGHTS • The volumetric power density of a redox flow battery was increased through the development of a submillimeter bundled microtubular membrane (SBMT). • By using a zinc iodide redox, the volumetric power density for […]

Sustainable conversion of asphaltenes to graphene
HIGHLIGHTS • A process has been developed to convert asphaltenes, a byproduct of petroleum refining, to graphene using flash joule heating. • To show the utility of the asphaltene-derived graphene, this material was combined with […]