Room temperature and atmospheric pressure aqueous partial oxidation of ethane to oxygenates over AuPd catalysts

Abstract

New modes of chemical manufacturing based on small-scale, distributed facilities have been proposed to supplement many existing production operations in the chemical industry, including the synthesis of value-added products from...

Rutile TiO2-Supported Pt Nanoparticle Catalysts for the Low-Temperature Oxidation of Ethane to Ethanol

“…It is well-known that C 2 H 5 OOH is produced via the reaction of H 2 O 2 and ethane. 7,11 Therefore, the observation of C 2 H 5 OOH in this system suggests that H 2 O 2 is formed under the reaction, and the supported Pt catalyst uses it as an oxidant to catalyze the ethane oxidation. To verify this hypothesis, Ce(SO 4 ) 2 titration was performed on the postreaction solutions (Table 2).…”

“…The former system, especially with O 2 as an oxidant, is an attractive reaction system because the target product can be easily separated from the catalytic system. However, the reaction requires high temperatures, and the reaction rate and ethanol selectivity are extremely low. − Oxidation of ethane to ethanol using H 2 O 2 as an oxidant has also been reported. − The H 2 O 2 generates the reactive oxygen species and boosts the partial oxidation of ethane. However, the ethanol selectivity is 53% at the highest. − Since H 2 O 2 is expensive, a reaction system using O 2 as the oxidant is more desirable.…”

“…However, the reaction requires high temperatures, and the reaction rate and ethanol selectivity are extremely low. − Oxidation of ethane to ethanol using H 2 O 2 as an oxidant has also been reported. − The H 2 O 2 generates the reactive oxygen species and boosts the partial oxidation of ethane. However, the ethanol selectivity is 53% at the highest. − Since H 2 O 2 is expensive, a reaction system using O 2 as the oxidant is more desirable. There are also reports of photocatalysts for ethane oxidation to ethanol using O 2 . − The reactions are promoted via in situ-generated radicals, and high activity is observed even at low temperatures.…”

Commercial Gold Complexes Supported on Functionalised Carbon Materials as Efficient Catalysts for the Direct Oxidation of Ethane to Acetic Acid

“…Gold catalysts have been widely used in many reactions as shown by several reviews [46][47][48][49]. However, the only references found in the literature for the use of gold in ethane oxidation are from the work of Wang et al, dealing with non-supported Au-Pd nanoparticles in water, but the main product obtained was ethyl hydroperoxide [50] and our own work dealing with homogeneous N-heterocyclic carbene and oxo-carbene Au(I) compounds [51]. Therefore, to the best of our knowledge, the present work reports the first use of commercial gold complexes supported on carbon nanomaterials in the oxidation of ethane to produce acetic acid.…”

Water-participated mild oxidation of ethane to acetaldehyde

“…Therefore, it is of great significance to develop a direct conversion path of ethane under lower temperature conditions. There have been not so many reports on the direct conversion of ethane under mild conditions [2][3][4][21][22][23][24] . Hutchings et al found that ethane could be directly converted to ethanol and ethyl hydroperoxide, which would be further oxidized to acetaldehyde and acetic acid at 323 K on Fe-ZSM-5 catalyst using H 2 O 2 21 .…”