Platinum Nanoarrays Directly Grown onto a 3D-Carbon Felt Electrode as a Bifunctional Material for Garden Compost Microbial Fuel Cell - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of The Electrochemical Society Année : 2021

Platinum Nanoarrays Directly Grown onto a 3D-Carbon Felt Electrode as a Bifunctional Material for Garden Compost Microbial Fuel Cell

Widya Ernayati Kosimaningrum
  • Fonction : Auteur
Mekhaissia Ouis
  • Fonction : Auteur
Yaovi Holade
Buchari Buchari
  • Fonction : Auteur
Indra Noviandri
  • Fonction : Auteur
Mostefa Kameche
  • Fonction : Auteur
Marc Cretin
  • Fonction : Auteur
  • PersonId : 753971
  • IdHAL : marc-cretin
Widya Ernayati Kosimaningrum
  • Fonction : Auteur

Résumé

The practical implementation of air-breathing microbial fuel cell (MFC) is critically linked to the development of efficient materials as cathode and electrochemically active biofilm-based anode. In this contribution, we demonstrate the feasibility by decorating a 3D carbon felt electrode with Pt nanoarrays (CF@Pt) as a bifunctional electrode material as efficient garden compost bioanode and airbreathing cathode. Half-cell electrochemical characterizations reveal that the onset potential of the anode reaction negatively shifts of about 800 mV to reach −0.4 V vs Ag/AgCl after the growth of the biofilm onto CF@Pt. The investigation before and after the biofilm formation shows that Pt nanoarrays act as excellent electron relays, reducing significantly the charge transfer resistance. For MFC application (with a proton exchange membrane), the use of CF@Pt as bioanode' scaffold and CF@Pt air-cathode enables a drastically enhanced power density of P max = 292.3 mW m −2 , and a high short-circuit current density j sc = 1.9 A m −2 .

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Chimie
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Dates et versions

hal-03367381 , version 1 (06-10-2021)

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Widya Ernayati Kosimaningrum, Mekhaissia Ouis, Yaovi Holade, Buchari Buchari, Indra Noviandri, et al.. Platinum Nanoarrays Directly Grown onto a 3D-Carbon Felt Electrode as a Bifunctional Material for Garden Compost Microbial Fuel Cell. Journal of The Electrochemical Society, 2021, 168 (2), pp.025501. ⟨10.1149/1945-7111/abde7c⟩. ⟨hal-03367381⟩
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