Synthesis of Metal-free Electrocatalyst Obtained from Different Biomass Sources with High Performance for Oxygen Reduction Reaction in Fuel Cells

被引：3

作者：

Alonso-Lemus, I. L. ^{[1
]}

Escobar-Morales, B. ^{[2
]}

Rodriguez-Varela, F. J. ^{[3
]}

Gonzalez-Quijano, D. ^{[3
]}

Lardizabal-Gutierrez, D. ^{[4
]}

Pacheco-Saucedo, K. ^{[2
]}

de la Torre-Saenz, L. ^{[4
]}

机构：

[1] CONACyT, CINVESTAV Saltillo, Grp Sutentabilidad Recursos Nat & Energia, Ramos Arizpe 25900, Coahuila, Mexico

[2] CONACyT, Ctr Invest Cient Yucatan, Grp Energias Renovables, Merida 97200, Yucatan, Mexico

[3] CINVESTAV Saltillo, Grp Sutentabilidad Recursos Nat & Energia, Ramos Arizpe 25900, Coahuila, Mexico

[4] CIMAV SC, Dept Quim Mat, Chihuahua 31109, Mexico

来源：

POLYMER ELECTROLYTE FUEL CELLS 16 (PEFC 16) | 2016年 / 75卷 / 14期

关键词：

CARBON;

D O I：

10.1149/07514.1035ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work, the synthesis and characterization of novel metal-free electrocatalysts obtained from biomass source is reported. Sargassum and waste leather has been subjected to simple thermochemical treatments, obtaining high performance electrocatalysts for the Oxygen Reduction Reaction (ORR) in KOH. A higher catalytic activity has been determined for the electrocatalyst from leather (PAL), compared to electrocatalyst obtained from sargassum (PAS). Furthermore, PAL delivers a higher current density compared with commercial 20% Pt/C (j = 9.0 and 4.5 mA cm(-2), respectively), while its on-set potential shifts only 145 mV to more negative values. The metal-free catalysts are a promising eco-friendly and scalable alternative as cathode materials for alkaline fuel cells and other electrochemical energy devices.

引用

页码：1035 / 1040

页数：6

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