Journal
ACS CATALYSIS
Volume 6, Issue 8, Pages 5095-5102Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.5b02721
Keywords
doped carbon; porous structure; bimodal porous; oxygen reduction reaction; acid medium
Categories
Funding
- International Collaborative Energy Technology R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy, Republic of Korea [20138520030800]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20138520030800] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Doped carbon nanomaterials as non-precious-metal catalysts for the oxygen reduction reaction (ORR) in polymer electrolyte membrane fuel cells have received intense attraction. The improvement of ORR performance for the doped porous carbon nanostructures with high specific surface areas is mainly attributed to multidoped electrochemical active sites provided by the metallic (Fe, Co) and nonmetallic species (N, B, and S). Here, we prepared porous iron/nitrogen-doped carbon nanostructured materials via a simple synthesis process using silicate beads (500 and 50 nm diameter) as templates in the presence of 5,10,15,20-tetrakis(4-methoxyphenyl)-21H,23H-porphyrin (TMPP) or (5,10,15,20-tetrakis(4-methowhenyl)-21H,23H-porphyrin)iron(111) chloride (FeTMPP). The resulting samples exhibited a bimodal porous structure, homogeneous heteroatomic doping, and a fairly large specific surface area. In particular, the sample prepared using both 500 and 50 nm silicate beads with FeTMPP (FeTMPP-C-500/50) exhibited much improved ORR performance in an acid solution. The enhanced ORR properties of FeTMPP-C-500/50 could result from the fairly large specific surface area, mixed macro-/mesoporous structure, high crystallinity, and codoping of metal and nitrogen.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available