PMID- 31799236
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200928
IS  - 2296-2646 (Print)
IS  - 2296-2646 (Electronic)
IS  - 2296-2646 (Linking)
VI  - 7
DP  - 2019
TI  - Mesoporous Silica vs. Organosilica Composites to Desulfurize Diesel.
PG  - 756
LID - 10.3389/fchem.2019.00756 [doi]
LID - 756
AB  - The monolacunary Keggin-type [PW(11)O(39)](7-) (PW(11)) heteropolyanion was 
      immobilized on porous framework of mesoporous silicas, namely SBA-15 and an 
      ethylene-bridged periodic mesoporous organosilica (PMOE). The supports were 
      functionalized with a cationic group (N-trimethoxysilypropyl-N, N, 
      N-trimethylammonium, TMA) for the successful anchoring of the anionic 
      polyoxometalate. The PW(11)@TMA-SBA-15 and PW(11)@TMA-PMOE composites were 
      evaluated as heterogeneous catalysts in the oxidative desulfurization of a model 
      diesel. The PW(11)@TMA-SBA-15 catalyst showed a remarkable desulfurization 
      performance by reaching ultra-low sulfur levels (<10 ppm) after only 60 min using 
      either a biphasic extractive and catalytic oxidative desulfurization (ECODS) 
      system (1:1 MeCN/diesel) or a solvent-free catalytic oxidative desulfurization 
      (CODS) system. Furthermore, the mesoporous silica composite was able to be 
      recycled for six consecutive cycles without any apparent loss of activity. The 
      promising results have led to the application of the catalyst in the 
      desulfurization of an untreated real diesel supplied by CEPSA (1,335 ppm S) using 
      the biphasic system. The system has proved to be a highly efficient process by 
      reaching desulfurization values higher than 90% for real diesel during three 
      consecutive cycles.
CI  - Copyright (c) 2019 Ribeiro, Granadeiro, Corvo, Pires, Campos-Martin, de Castro and 
      Balula.
FAU - Ribeiro, Susana O
AU  - Ribeiro SO
AD  - LAQV-REQUIMTE, Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 
      Universidade Do Porto, Porto, Portugal.
FAU - Granadeiro, Carlos M
AU  - Granadeiro CM
AD  - LAQV-REQUIMTE, Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 
      Universidade Do Porto, Porto, Portugal.
FAU - Corvo, Marta C
AU  - Corvo MC
AD  - CENIMAT/I3N, Departamento de Ciencia dos Materiais, Faculdade de Ciencias e 
      Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.
FAU - Pires, Joao
AU  - Pires J
AD  - Faculdade de Ciencias, Centro de Quimica e Bioquimica and CQE, Universidade de 
      Lisboa, Lisbon, Portugal.
FAU - Campos-Martin, Jose M
AU  - Campos-Martin JM
AD  - Grupo de Energia y Quimica Sostenibles (EQS), Instituto de Catalisis y 
      Petroleoquimica, CSIC, Madrid, Spain.
FAU - de Castro, Baltazar
AU  - de Castro B
AD  - LAQV-REQUIMTE, Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 
      Universidade Do Porto, Porto, Portugal.
FAU - Balula, Salete S
AU  - Balula SS
AD  - LAQV-REQUIMTE, Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 
      Universidade Do Porto, Porto, Portugal.
LA  - eng
PT  - Journal Article
DEP - 20191114
PL  - Switzerland
TA  - Front Chem
JT  - Frontiers in chemistry
JID - 101627988
PMC - PMC6868090
OTO - NOTNLM
OT  - fuels
OT  - heterogeneous catalysis
OT  - mesoporous silica
OT  - oxidative desulfurization
OT  - polyoxometalate (POM)
EDAT- 2019/12/05 06:00
MHDA- 2019/12/05 06:01
PMCR- 2019/01/01
CRDT- 2019/12/05 06:00
PHST- 2019/07/03 00:00 [received]
PHST- 2019/10/22 00:00 [accepted]
PHST- 2019/12/05 06:00 [entrez]
PHST- 2019/12/05 06:00 [pubmed]
PHST- 2019/12/05 06:01 [medline]
PHST- 2019/01/01 00:00 [pmc-release]
AID - 10.3389/fchem.2019.00756 [doi]
PST - epublish
SO  - Front Chem. 2019 Nov 14;7:756. doi: 10.3389/fchem.2019.00756. eCollection 2019.