<abstract abstract-type="toc"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <graphic position="anchor" id="ga" xlink:href="ark:/27927/pgjjh0x9h1" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />Highly active Mn–CeO<sub><italic>x</italic></sub>/CNTs catalysts were first fabricated by a novel redox method, and a formation mechanism was proposed.</p> </abstract>