Rational Synthesis of Porous Graphitic-like Carbon Nitride Nanotubes Codoped with Au and Pd as an Efficient Catalyst for Carbon Monoxide Oxidation

Kamel Eid; Mostafa H Sliem; Halema Al-Kandari; Mohammed A Sharaf; Aboubakr M Abdullah

doi:10.1021/acs.langmuir.8b03588

Rational Synthesis of Porous Graphitic-like Carbon Nitride Nanotubes Codoped with Au and Pd as an Efficient Catalyst for Carbon Monoxide Oxidation

Langmuir. 2019 Mar 5;35(9):3421-3431. doi: 10.1021/acs.langmuir.8b03588. Epub 2019 Feb 8.

Authors

Kamel Eid¹, Mostafa H Sliem¹, Halema Al-Kandari², Mohammed A Sharaf³, Aboubakr M Abdullah¹

Affiliations

¹ Center for Advanced Materials , Qatar University , Doha 2713 , Qatar.
² Department of Health Environment , College of Health Sciences, Public Authority for Applied Education and Training , P.O. Box 1428, Faiha 72853 , Kuwait.
³ Department of Maritime Transportation Management Engineering , İstanbul University-Cerrahpaşa , Avcilar, Istanbul 34320 , Turkey.

PMID: 30715897
DOI: 10.1021/acs.langmuir.8b03588

Abstract

The precise fabrication of efficient catalysts for CO oxidation is of particular interest in a wide range of industrial and environmental applications. Herein, a scalable method is presented for the controlled synthesis of graphitic-like porous carbon nitride nanotubes (gC₃N₄NTs) codoped with Au and Pd (Au/Pd/gC₃N₄NTs) as efficient catalysts for carbon monoxide (CO) conversion. This includes the activation of melamine with nitric acid in the presence of ethylene glycol and metal precursors followed by consecutive polymerization and carbonization. This drives the formation of porous one-dimensional gC₃N₄NT with an outstanding surface area of (320.6 m² g^-1) and an atomic-level distribution of Au and Pd. Intriguingly, the CO conversion efficiency of Au/Pd/gC₃N₄NTs was substantially greater than that for gC₃N₄NTs. The approach thus presented may provide new avenues for the utilization of gC₃N₄ doped with multiple metal-based catalysts for CO conversion reactions which had been rarely reported before.