Methane dry reforming over ni supported on pine sawdust activated carbon: Effects of support surface properties and metal loading

Rafael García, Gabriela Soto, Néstor Escalona, Catherine Sepúlveda, María José Orellana, Natalia Morales, Ljubisa R. Radovic, Robison Buitrago-Sierra, Francisco Rodriguez-Reinoso, Antonio Sepúlveda-Escribano

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The influence of metal loading and support surface functional groups (SFG) on methane dry reforming (MDR) over Ni catalysts supported on pine-sawdust derived activated carbon were studied. Using pine sawdust as the catalyst support precursor, the smallest variety and lowest concentration of SFG led to best Ni dispersion and highest catalytic activity, which increased with Ni loading up to 3 Ni atoms nm-2. At higher Ni loading, the formation of large metal aggregates was observed, consistent with a lower "apparent" surface area and a decrease in catalytic activity. The H2/CO ratio rose with increasing reaction temperature, indicating that increasingly important side reactions were taking place in addition to MDR.

Original languageEnglish (US)
Pages (from-to)506-509
Number of pages4
JournalQuimica Nova
Volume38
Issue number4
DOIs
StatePublished - May 1 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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