Solvothermal synthesis of mesoporous manganese oxide with enhanced catalytic activity for veratryl alcohol oxidation

Ajay Jha, Tejansh Chandole, Rajan Pandya, Hyun Seog Roh, Chandrashekhar V. Rode

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Catalyst activities of manganese and cobalt oxides prepared by solvothermal and co-precipitation methods were studied for veratryl alcohol oxidation. Manganese oxides showed higher activity performance than that of cobalt oxides irrespective of the method of preparation. The solvothermal method yielded mesoporous manganese oxide without using any template giving mixed phases of monoclinic Mn5O8 and hausmannite Mn3O 4. The mesoporous manganese oxide exhibited excellent activity for liquid phase aerobic oxidation of veratryl alcohol under base free conditions, with 90% conversion and almost complete selectivity towards veratraldehyde. The detailed characterization results on morphology, size and composition of the prepared mesoporous manganese oxide obtained by XRD, XPS, H2-TPR, N2 adsorption-desorption isotherms, FE-SEM and HR-TEM techniques were used to understand the role of morphological and structural features in enhancement of the observed catalytic activity.

Original languageEnglish
Pages (from-to)19450-19455
Number of pages6
JournalRSC Advances
Volume4
Issue number37
DOIs
Publication statusPublished - 2014

Fingerprint

Manganese oxide
Catalyst activity
Alcohols
Oxidation
Cobalt
Oxides
Coprecipitation
Manganese
Isotherms
Desorption
X ray photoelectron spectroscopy
Transmission electron microscopy
Adsorption
Scanning electron microscopy
manganese oxide
veratryl alcohol
Liquids
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Jha, Ajay ; Chandole, Tejansh ; Pandya, Rajan ; Roh, Hyun Seog ; Rode, Chandrashekhar V. / Solvothermal synthesis of mesoporous manganese oxide with enhanced catalytic activity for veratryl alcohol oxidation. In: RSC Advances. 2014 ; Vol. 4, No. 37. pp. 19450-19455.
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abstract = "Catalyst activities of manganese and cobalt oxides prepared by solvothermal and co-precipitation methods were studied for veratryl alcohol oxidation. Manganese oxides showed higher activity performance than that of cobalt oxides irrespective of the method of preparation. The solvothermal method yielded mesoporous manganese oxide without using any template giving mixed phases of monoclinic Mn5O8 and hausmannite Mn3O 4. The mesoporous manganese oxide exhibited excellent activity for liquid phase aerobic oxidation of veratryl alcohol under base free conditions, with 90{\%} conversion and almost complete selectivity towards veratraldehyde. The detailed characterization results on morphology, size and composition of the prepared mesoporous manganese oxide obtained by XRD, XPS, H2-TPR, N2 adsorption-desorption isotherms, FE-SEM and HR-TEM techniques were used to understand the role of morphological and structural features in enhancement of the observed catalytic activity.",
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Solvothermal synthesis of mesoporous manganese oxide with enhanced catalytic activity for veratryl alcohol oxidation. / Jha, Ajay; Chandole, Tejansh; Pandya, Rajan; Roh, Hyun Seog; Rode, Chandrashekhar V.

In: RSC Advances, Vol. 4, No. 37, 2014, p. 19450-19455.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Solvothermal synthesis of mesoporous manganese oxide with enhanced catalytic activity for veratryl alcohol oxidation

AU - Jha, Ajay

AU - Chandole, Tejansh

AU - Pandya, Rajan

AU - Roh, Hyun Seog

AU - Rode, Chandrashekhar V.

PY - 2014

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N2 - Catalyst activities of manganese and cobalt oxides prepared by solvothermal and co-precipitation methods were studied for veratryl alcohol oxidation. Manganese oxides showed higher activity performance than that of cobalt oxides irrespective of the method of preparation. The solvothermal method yielded mesoporous manganese oxide without using any template giving mixed phases of monoclinic Mn5O8 and hausmannite Mn3O 4. The mesoporous manganese oxide exhibited excellent activity for liquid phase aerobic oxidation of veratryl alcohol under base free conditions, with 90% conversion and almost complete selectivity towards veratraldehyde. The detailed characterization results on morphology, size and composition of the prepared mesoporous manganese oxide obtained by XRD, XPS, H2-TPR, N2 adsorption-desorption isotherms, FE-SEM and HR-TEM techniques were used to understand the role of morphological and structural features in enhancement of the observed catalytic activity.

AB - Catalyst activities of manganese and cobalt oxides prepared by solvothermal and co-precipitation methods were studied for veratryl alcohol oxidation. Manganese oxides showed higher activity performance than that of cobalt oxides irrespective of the method of preparation. The solvothermal method yielded mesoporous manganese oxide without using any template giving mixed phases of monoclinic Mn5O8 and hausmannite Mn3O 4. The mesoporous manganese oxide exhibited excellent activity for liquid phase aerobic oxidation of veratryl alcohol under base free conditions, with 90% conversion and almost complete selectivity towards veratraldehyde. The detailed characterization results on morphology, size and composition of the prepared mesoporous manganese oxide obtained by XRD, XPS, H2-TPR, N2 adsorption-desorption isotherms, FE-SEM and HR-TEM techniques were used to understand the role of morphological and structural features in enhancement of the observed catalytic activity.

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