King Fahd University of Petroleum and Minerals

Abdulmajeed Hasan Hendi

Zain Hassan Yamani

Mohammad Kamal Hossain

Qasem Ahmed Drmosh

Mohammed Ashraf Gondal

Abdullatif Mohammed Albaseer

Amar Kamal Mohamedkhair

Redhwan Abdo Moqbel

A hydrogen sensor that efficiently detects hydrogen gas at room temperature comprising a gold decorated reduced graphene oxide/zinc oxide (Au/rGO/ZnO) heterostructured composite, methods for making this sensor and a method for sensitive room temperature detection of hydrogen using the sensor.

Room temperature UV-activated hydrogen gas sensor

A room temperature nitrogen dioxide gas sensor comprising tin(IV) oxide decorated with gold nanoparticles is described. The tin(IV) oxide may have an average layer thickness of 10-1,000 nm, and is topped with dispersed gold nanoparticles having an average longest dimension of 200-650 nm. The room temperature nitrogen dioxide gas sensor may be used to detect and measure levels of nitrogen dioxide gas at room temperature and at concentrations of 100 ppb-1800 ppm, with a high stability. A method of making the room temperature nitrogen dioxide sensor is also described, and involves sputtering to deposit a tin(IV) oxide layer and a gold layer on a substrate, followed by annealing.

Room temperature nitrogen dioxide gas sensor

Growing community of inventors

Dhahran, Saudi Arabia

Abdulmajeed Hasan Hendi