• 0
  • 0

Advanced Materials:Fe Co existing Fe and Ni atoms on ordered porous carbon surface promote oxygen reduction efficiently

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email:

proton exchange membrane fuel cell has the advantages of high energy conversion environmental protection. It has great potential in solving energy environmental problems. Its device efficiency cost greatly depend on its cathode electrocatalyst for oxygen reduction reaction. At present carbon supported metal single atom electrocatalyst is the most promising alternative to platinum. However this kind of electrocatalyst still has some problems such as insufficient catalytic activity difficult mass transfer of reactants in the cathode so on. Recent studies have shown that by introducing a second metal atom optimizing the nanostructure it is expected to further enhance the performance of carbon supported metal atom electrocatalysts. However it is still a challenge to develop a general method to prepare electrocatalysts with the above advantages.

recently Professor Zhao Huijun of Griffith University in Australia reported a heteroatom (h-sas) oxygen reduction (ORR) electrocatalyst. In this work nitrogen coordinated Fe Ni atoms are Co doped on ordered hierarchical porous carbon support which is composed of highly ordered macropores interconnected by micro / mesoporous. Xaner EXAFS confirmed that Fe - Ni SAS were anchored on carbon supports by fe-n4 ni-n4 coordination bonds. The prepared Fe / ni-h-sa electrocatalyst showed excellent orr activity which was superior to the electrocatalyst containing only Fe - or Ni SAS the benchmark Pt / C catalyst. The experimental theoretical results show that the high catalytic activity comes from the synergistic effect of co existing fe-n4 ni-n4 sites the ordered porous carbon supports promote the mass transfer ability of the materials. Based on this the electrocatalyst has significantly enhanced orr performance can be used as cathode material to enhance the device performance of zinc air cells proton exchange membrane fuel cells. This article was published in the international top material journal advanced materials (DOI: 10.1002/adma.202004670). The work of

not only provides a feasible way for efficient orr electrocatalysts zinc air cells proton exchange membrane fuel cells but also provides a reference for the rational design of other electrocatalysts involving the reaction of dissolved gases (such as N2 CO2). In addition it is expected to be applied in other metal air batteries metal sulfur batteries other fields.

MIS-ASIA is an online content marketing platform that has a large number of visitors worldwide. It is considered to be the leading IT, mechanical, chemical, and nanomaterial information distributor in the Asia-Pacific region. The MIS-ASIA website provides high-quality articles and news on digital information technology, mechanical technology, nanotechnology, biology and science for scientists, engineers and industry experts, machinery suppliers and buyers, chemical suppliers and laboratories. If you need advertising and posting service, or you need to start sponsorship, please contact us.

Inquiry us

  • tags

SCR Thyristor: Principles, Characteristics and Maintenance of Semiconductor Switches

High Purity Chromium Chip Chromium Sheet Chromium Flake CAS 7440-47-3,99.95%

Metal Alloy 8.92g/Cm3 High Purity Polished Copper Plate

Metal Alloy 18.5g/cm3 Polished Tungsten Heavy Alloy Plate

High Purity Antimony Sulfide Sb2S3 Powder CAS 1314-87-0, 99.99%

Metal Alloy 18g/cm3 High Density Tungsten Alloy Ball

High Purity Molybdenum Boride MoB2 Powder CAS 12006-99-4, 99%

High Purity Nano Hafnium Hf powder CAS 7440-58-6, 99%

Metal Alloy High Density Tungsten Alloy Rod Grind Surface Tungsten Alloy Bar

High Purity Germanium Sulfide GeS2 Powder CAS 12025-34-2, 99.99%

High Purity Chromium Diboride CrB2 Powder CAS 12007-16-8, 99%

High Purity Tungsten Silicide WSi2 Powder CAS 12039-88-2, 99%

High Purity Titanium Sulfide TiS2 Powder CAS 2039-13-3, 99.99%

High Purity 3D Printing Powder 15-5 Stainless Steel Powder

High Purity Nano Ag Silver powder cas 7440-22-4, 99%

High Purity Silicon Sulfide SiS2 Powder CAS 13759-10-9, 99.99%

High Purity Zirconium Nitride ZrN Powder CAS 25658-42-8, 99.5%

Supply Magnesium Granules Mg Granules 99.95%

High Purity 3D Printing 304 Stainless Steel Powder

High Purity Colloidal Silver Nano Silver Solution CAS 7440-22-4

Our Latest Products

SCR Thyristor: Principles, Characteristics and Maintenance of Semiconductor Switches

A brief introduction to thyristorsA thyristor is a powerful electronic device. It is a three-terminal component composed of four layers of PNPN semiconductor materials. Its forward working voltage is equal to the reverse breakdown voltage. This is re…

Metal Alloy 8.92g/Cm3 High Purity Polished Copper Plate

Copper products exhibit good electrical conductivity as well as thermal conductivity. They are also ductile, resistant to corrosion, and have a high wear resistance. They are widely used by the electricity, electronics and energy industries. Metal…

Metal Alloy 18.5g/cm3 Polished Tungsten Heavy Alloy Plate

Tungsten alloy heavy plate has low thermal expansion. It is also known for its high density, high radiation absorption, and high electrical and thermal conductivity. It is used widely in the aerospace and military industries. About Metal Alloy 18.5…