Research progress on the anode electrocatalysts for direct formic acid fuel cells such as Changchun Yinghua Institute

The Direct Formic Acid Fuel Cell (DFAFC) is a new generation of mobile and portable power supplies because of its simple manufacturing process, high specific energy and specific power. This technology is a power generation device that directly converts chemical energy stored in formic acid and oxygen into electrical energy. However, the stability and durability of the DFAFC are still poor, precious metal loading is still high, precious metal utilization is still low, and commercial technical requirements cannot be achieved. Therefore, the development of high activity, high stability anode electrocatalyst is the core of the current research.

Recently, under the strong support of the National Natural Science Foundation of China, the Ministry of Science and Technology, and the Chinese Academy of Sciences, the research team of the Xing Chang Researcher of the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences and the team led by Prof. Hu Xile of the Federal Institute of Technology in Lausanne, Paris, Switzerland, have conducted international cooperation. Aiming at the forefront of the field, through unremitting efforts, we successfully completed rational design and controlled the preparation of DFAFC high-efficiency anode non-platinum catalyst.

The team obtained a simple and inexpensive composite carrier by doping nickel dioxide (Ni2P) into common carbon black, and then loaded palladium on the composite carrier to obtain an anode electrocatalyst for direct formic acid fuel cells. This type of catalyst is superior to commercial catalysts and other reported catalysts in terms of activity, lifespan, anti-poisoning ability and long-term work stability in an acidic environment. Among them, when using Pd-Ni2P/C as the DFAFC catalyst in this system, the power density is as high as 550mW/cm2, which is 2.5 times higher than commercial performance. It is the highest performance of DFAFC reported in the literature. The relevant research results were published in Angew. Chem. Int. Ed, 2014, 53, 122-126. Selected as "hot paper" and "frontispiece". At present, mass production of related catalysts is underway.

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