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Pt-Quantum-Dot-Modified Sulfur-Doped NiFe Layered Double Hydroxide for High-Current-Density Alkaline Water Splitting at Industrial Temperature.
Lei, Hang; Wan, Qixiang; Tan, Shaozao; Wang, Zilong; Mai, Wenjie.
Afiliación
  • Lei H; Guangdong Engineering & Technology Research Centre of Graphene-Like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China.
  • Wan Q; Guangdong Engineering & Technology Research Centre of Graphene-Like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China.
  • Tan S; Guangdong Engineering & Technology Research Centre of Graphene-Like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China.
  • Wang Z; Guangdong Engineering & Technology Research Centre of Graphene-Like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou, 510632, China.
  • Mai W; Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632, China.
Adv Mater ; 35(15): e2208209, 2023 Apr.
Article en En | MEDLINE | ID: mdl-36680489
Suitable electrocatalysts for industrial water splitting can veritably promote practical hydrogen applications. Rational surface design is exceptionally significant for electrocatalysts to bridge the gap between fundamental science and industrial expectation in water splitting. Here, Pt-quantum-dot-modified sulfur-doped NiFe layered double hydroxides (Pt@S-NiFe LDHs) are designed with eximious catalytic activity toward hydrogen evolution reaction (HER) under industrial condition. Benefiting from enhanced binding energy, mass transfer, and hydrogen release, Pt@S-NiFe LDHs exhibit outstanding activity in HER at high current densities. Notably, it obtains an impressively low overpotential of 71 mV and long-term stability of 200 h at 100 mA cm-2 , exceeding commercial 40% Pt/C and most reported Pt-based electrocatalysts. Its mass activity is 2.7 times higher than that of 40% Pt/C with an overpotential of 100 mV. Furthermore, at industrial temperature (65 °C), the electrolyzer based on Pt@S-NiFe LDH needs just 1.62 V to reach the current density of 100 mA cm-2 , superior to that of the commercial one of 40% Pt/C//IrO2 . This work provides rational ideas to develop electrocatalysts with exceptional performance for industrial high-temperature water splitting at high current densities.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania