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Pt–NiO–Al2O3/G derived from graphene-supported layered double hydroxide as efficient catalyst for p-nitrophenol reduction

Akbarzadeh, E ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s11164-017-2965-9
  3. Abstract:
  4. The present work reports the synthesis of a Pt-modified NiO–Al2O3 nanocomposite derived from graphene-supported layered double hydroxide (Pt–NiO/G) and demonstrates its catalytic activity. The resulting Pt–NiO/G nanocomposite was characterized by FT-IR, XRD, FE-SEM, TEM and XPS techniques and used for catalytic reduction of p-nitrophenol (P-NP) to p-aminophenol (P-AP). The influence of graphene on catalytic activity was comparatively considered by preparation of Pt–NiO nanoparticles derived from layered double hydroxide. The superior catalytic performance of Pt–NiO/G was ascribed to the synergistic effect between Pt and NiO. Furthermore, reduction of P-NP was considered to follow a pseudo-first-order kinetic and a Langmuir–Hinshelwood model was suggested for the mechanism of reduction reaction. © 2017, Springer Science+Business Media Dordrecht
  5. Keywords:
  6. Langmuir–hinshelwood model ; Layered double hydroxide ; Aluminum ; Graphene ; Nanocomposites ; Nickel oxide ; Phenols ; Platinum ; Reduction ; Catalytic performance ; Catalytic reduction ; Efficient catalysts ; Langmuirs ; Layered double hydroxides ; P-Nitrophenol ; Pseudo-first order kinetics ; Synergistic effect ; Catalyst activity
  7. Source: Research on Chemical Intermediates ; Volume 43, Issue 10 , 2017 , Pages 5829-5839 ; 09226168 (ISSN)
  8. URL: https://link.springer.com/article/10.1007%2Fs11164-017-2965-9