The sustainable development of human society is the subject of many countries, organizations and enterprises, and the ultimate goal of scientific research. Earth's various types of energy is the support of human society, to occupy a dominant position in the sustainable development strategy.Because the earth's oil, mineral resources is limited, and the demand for energy is very large, so now the energy problem has gradually revealed, there are statistics showing that human beings will use the total oil reserves on Earth 40 % until 2040.It can be seen in order to achieve sustainable development of society, how to use the limited energy in a more efficient way is a very critical issue.

   One of the important materials for fuel cells is the electrocatalyst used on the electrodes to catalyze the electrochemical reaction of fuels or oxidants. At present, platinum (Pt) is seen as the active material of the catalyst with extensive research and application, such as platinum carbon catalyst (Pt/C). Platinum is proved to be the best catalyst active component of the fuel cell, but the platinum catalyst has several problems:（1）catalytic activity can not meet the existing needs；（2）poor anti-drug ability, short life.（3）lack of platinum resources, expensive. So how to prepare high-performance, long-life and low-cost electrocatalyst is an urgent problem to be solved.

  Now for the fuel cell electrocatalyst research is divided into platinum-based catalyst and non-platinum catalyst, and platinum-based catalyst is divided into three categories:(1) platinum monomer catalyst, mainly by regulating the morphology of platinum particles, crystal surface to improve performance; (2) platinum alloy catalyst, mainly by the platinum into other metals made of alloy to improve performance; (3) platinum/Metal catalysts, such as core-shell heterodimers, using the role of the metal to improve the performance of the catalyst. Non-platinum catalysts are non-noble metal catalysts, palladium-based catalysts, transition metal macrocyclic derivatives and non-metallic catalysts. The nitrogen-doped graphene has received some attention because of its good activity and stability of ORR.

Platinum-based catalysts are expensive and even account for one-third of the total cost of fuel cells in 2005. Because of the lack of cheap and efficient catalyst, so the high price of catalyst has become a key issue in restricting the development of fuel cells. Therefore, our group mainly use platinum and other metals as a catalyst to reduce the platinum load, in order to reduce the cost of platinum-based catalyst and maintain its high performance.

The deactivation of platinum-based catalyst will reduce the stability of the catalyst, there are several reasons for its inactivation: (1) carrier corrosion, platinum nanoparticles fall off; (2) platinum nanoparticles agglomeration; (3) platinum dissolved and reprecipitated, the occurrence of Ostwald ripening. Our group tries to avoid the occurrence of reunion and inactivation by the nanoparticles mounted on the carrier, because the particles will be anchored on the carrier.