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PdCu nanoparticles modified free-standing reduced graphene oxide framework as a highly efficient catalyst for direct borohydride-hydrogen peroxide fuel cell

Author

Listed:
  • Yin, Xianzhi
  • Hou, Meiling
  • Zhu, Kai
  • Ye, Ke
  • Yan, Jun
  • Cao, Dianxue
  • Zhang, Dongming
  • Yao, Jiaxin
  • Wang, Guiling

Abstract

A novel electrode of PdCu nanoparticles modified free-standing reduced graphene oxide (rGO) framework (PdCu@rGOF) is fabricated via electrodeposition and chemical reduction and employed to the direct sodium borohydride-hydrogen peroxide fuel cell (DBHPFC). The resultant catalyst reveals excellent catalytic performance towards hydrogen peroxide (H2O2) electroreduction reaction (HPRR) and sodium borohydride (NaBH4) electrooxidation reaction (BOR) along with low activation energy (Ea). Numerically, the PdCu@rGOF electrode delivers an HPRR current density of 455.2 mA cm−2 at 0 V (2 mol L−1 H2SO4+1.3 mol L−1 H2O2). Additionally, the current density of BOR reaches up to 1065.3 mA cm−2 at 0 V for 2 mol L−1 NaOH and 0.3 mol L−1 NaBH4. Meanwhile, the mechanism studies show that HPRR and BOR catalyzed by PdCu@rGOF mainly relates 2-electron-transfer process and quasi-8-electron-transfer process, respectively. Subsequently, PdCu@rGOF is assembled into a fuel cell, yielding the optimal power density of 188.9 mW cm−2. The open circuit potential (OCP) of DBHPFC is about 1.70 V at 293.15 K. The superior electrochemical performance of the optimized electrode can be attributed to the distinctive architecture and the strong adsorption and bond-breaking ability of Pd nanoparticles. This work indicates that the as-prepared PdCu@rGOF can be a promising catalyst for DBHPFC.

Suggested Citation

  • Yin, Xianzhi & Hou, Meiling & Zhu, Kai & Ye, Ke & Yan, Jun & Cao, Dianxue & Zhang, Dongming & Yao, Jiaxin & Wang, Guiling, 2022. "PdCu nanoparticles modified free-standing reduced graphene oxide framework as a highly efficient catalyst for direct borohydride-hydrogen peroxide fuel cell," Renewable Energy, Elsevier, vol. 201(P1), pages 160-170.
    • Handle: RePEc:eee:renene:v:201:y:2022:i:p1:p:160-170
    DOI: 10.1016/j.renene.2022.10.076
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    References listed on IDEAS

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    1. Oh, Taek Hyun & Jang, Bosun & Kwon, Sejin, 2014. "Performance evaluation of direct borohydride–hydrogen peroxide fuel cells with electrocatalysts supported on multiwalled carbon nanotubes," Energy, Elsevier, vol. 76(C), pages 911-919.
    2. Oh, Taek Hyun, 2021. "Gold-based bimetallic electrocatalysts supported on multiwalled carbon nanotubes for direct borohydride–hydrogen peroxide fuel cell," Renewable Energy, Elsevier, vol. 163(C), pages 930-938.
    3. Uzundurukan, Arife & Akça, Elif Seda & Budak, Yağmur & Devrim, Yılser, 2021. "Carbon nanotube-graphene supported bimetallic electrocatalyst for direct borohydride hydrogen peroxide fuel cells," Renewable Energy, Elsevier, vol. 172(C), pages 1351-1364.
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