His research is based around heterogeneous catalysis, with a focus on oxidation, both for environmental applications and chemical production. He collaborates widely nationally and internationally with a number of research groups and research institutes. He also interacts extensively with industry; some examples of recent and current partners are ExxonMobil, Dow, Johnson Matthey, Jaguar Land Rover, Invista, General Motors, Sabic, Henkel and Sasol.