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Guerbet Reaction over Strontium‐Substituted Hydroxyapatite Catalysts Prepared at Various (Ca+Sr)/P Ratios
Author(s) -
Silvester Lishil,
Lamonier JeanFrançois,
Lamonier Carole,
Capron Mickaël,
Vannier RoseNoëlle,
Mamede AnneSophie,
Dumeignil Franck
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201601480
Subject(s) - hydroxyapatites , chemistry , stoichiometry , strontium , ethanol , selectivity , catalysis , alcohol , base (topology) , reactivity (psychology) , nuclear chemistry , inorganic chemistry , organic chemistry , calcium , medicine , mathematical analysis , alternative medicine , mathematics , pathology
The Guerbet reaction of ethanol to heavier products was performed over a series of extensively characterized Sr‐substituted hydroxyapatites (HAPs) with different (Ca+Sr)/P ratios, and thus different structural, textural, and acid–base properties. The acid–base properties were correlated with the reactivity of the solids and an optimal ratio between the amount of acid and basic sites was determined (ca. 4), whereas the ethanol conversion was mainly depending on the specific surface area of the solids. The stoichiometric 100 mol % Sr‐substituted sample (SrAp‐100) was especially efficient in higher alcohols production, which can be illustrated by a total alcohol selectivity (76.4 %) higher than that of all the other solids at a 13 % ethanol isoconversion.