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Synthesis of a novel one-dimensional ternary MOF-on-MOF in form of direct and carbonization derived structure towards promising catalytic efficiency of HER

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  • Nami-Ana, Seyedeh Fatemeh
  • Zeinali, Sedigheh

Abstract

Exploring and designing efficient, cost-effective, and stable non-noble catalysts for the hydrogen evolution reaction (HER) is of critical importance for clean energy applications. Metal-organic frameworks (MOFs) have recently emerged as promising precursors to construct efficient non-noble metal electrocatalysts. Herein, An Assembly of MoMOF/ Zif67/MoMOF as a hybrid of MOF-on-MOF heterostructure has been synthesized. The one dimensional MoMOF was used as precursor to continue the step-by-step synthesis. In order to overwhelm the poor electrical conductivity the synthesized MOF-on-MOF was carbonized. The electrocatalyst with unique design and properties revealed impressively low onset overpotentials of 44 mV and 68 mV at a current density of 10 mA cm−2 towards HER. It also demonstrated a good working stability for the HER in acidic media could be considered as a good alternative of noble metal electrocatalyst. The designed MoMOF/ Zif67/MoMOF showed a satisfactory result of 154 mV overvoltage at a current density of 10 mA cm−2 may be originate from the synthesis strategy and open a new window to direct use of MOF by MOF-on-MOF design.

Suggested Citation

  • Nami-Ana, Seyedeh Fatemeh & Zeinali, Sedigheh, 2023. "Synthesis of a novel one-dimensional ternary MOF-on-MOF in form of direct and carbonization derived structure towards promising catalytic efficiency of HER," Applied Energy, Elsevier, vol. 350(C).
    • Handle: RePEc:eee:appene:v:350:y:2023:i:c:s0306261923011194
    DOI: 10.1016/j.apenergy.2023.121755
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    References listed on IDEAS

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    1. Chao Liu & Qiang Sun & Lina Lin & Jing Wang & Chaoqi Zhang & Chunhong Xia & Tong Bao & Jingjing Wan & Rong Huang & Jin Zou & Chengzhong Yu, 2020. "Ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity via multiple selective assembly," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
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