Iron and tin phosphide as polymer electrolyte membrane fuel cell cathode catalysts

Sapkota, Prabal; Aguey‐Zinsou, Kondo‐François

doi:10.1016/j.ijhydene.2022.09.230

Cited by 4 publications

(2 citation statements)

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“…Among the various nonnoble metal catalysts, Fe–N–C catalysts have shown great potential as ORR catalysts in fuel cells due to their excellent ORR activity, good stability, and low cost. It has been reported through both experimental and simulation work that the electrocatalytic activity of metal–nitrogen–carbon towards the ORR is in the order of Fe > Co > Mn > Cu > Ni 7,8 …”

Section: Introductionmentioning

confidence: 99%

“…It has been reported through both experimental and simulation work that the electrocatalytic activity of metal-nitrogen-carbon towards the ORR is in the order of Fe > Co > Mn > Cu > Ni. 7,8 The United States Department of Energy (DOE) has set the goal of developing more cost-effective and efficient PGM electrocatalysts for fuel cells. 9 Various approaches have been applied to find the best Fe-N-C catalyst to achieve the desired performance as required by the DOE, such as controlling the morphology of the catalyst.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Fe–N–C morphologies on the oxygen reduction reaction in acidic and alkaline media

Junaidi

Tan

Wong

et al. 2023

Asia-Pacific J Chem Eng

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The development of nonnoble metal oxygen reduction reaction (ORR) catalysts for fuel cells has been motivated by the high cost and limited supply of noble metals, as well as the desire to improve the performance and durability of this type of energy conversion device. In this study, nonnoble Fe–N–C catalyst was synthesized using a zeolitic imidazole framework (ZIF‐8), poly (aniline), and 10,10′‐dibromo‐9,9′‐bianthry as precursors to produce Fe–N–C with hollow sphere (HS), amorphous bulky structure (B), and sheet‐like thin sheet (N) structure. The Fe–N–C catalyst was analysed in terms of their shape, crystal structure, pore characteristics, and elemental composition. Among all the Fe–N–C catalysts, Fe–N–C_HS had the highest total surface area, followed by Fe–N–C_B and Fe–N–C_N. To evaluate their ORR catalytic activity, a half‐cell electrochemical experiment with .1 M KOH and .1 M HClO4 as the alkaline and acidic electrolytes was conducted. This study revealed that Fe–N–C_HS exhibited the highest onset potential but the Fe–N–C_B has the highest limiting current density in alkaline medium; meanwhile, in acidic media, Fe–N–C_HS shows the best ORR performance with the highest onset potential and limiting current. This highly porous Fe–N–C_HS catalyst also demonstrated active site activation and excellent stability compared with the other samples as well as commercial Pt/C in acidic electrolyte, which suggests its potential for application in proton exchange membrane fuel cells (PEMFCs).

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Section: Introductionmentioning

confidence: 99%