https://www.selleckchem.com/
Designing a low-cost, high-efficiency and robust doped-carbon-based oxygen reduction reaction electrocatalyst for large-scale implementations of fuel cells is highly desirable but challenging. In this work, we report a new type of hollow Fe3O4 with oxygen vacancy incorporating on mesoporous carbon prepared by pyrolyzing mesoporous carbon enriched with oxygen-containing functional groups, in combination with ferric acetylacetonate. The catalysts possess high specific surface area with predominantly mesoporous architecture and ultrahigh nitrogen content (up t

https://www.hometreadmills.uk/....products/costway-2-i
Best Foldable Inclinable Treadmills A treadmill can be an exciting option for anyone who works at home and wants to stay fit. The treadmill is equipped with dials that are attached to the rails on the grips of the hand that regulate the speed and the incline. It's not necessary to fiddle with buttons if you're sweaty. You also receive 30 days of NordicTrack IFit workouts at no cost. 1. Xterra Treadmill The XTERRA TR150 treadmill is part of the Compact series, which comes with smaller footprin