Evidence map›Paper›PMID 35756106›Full record

ArticleHeliyon2022

Modification of SBA-15 mesoporous silica as an active heterogeneous catalyst for the hydroisomerization and hydrocracking of n-heptane.

Nisreen S Ali, Ziad T Alismaeel, Hasan Sh Majdi, Hussein G Salih, Mahir A Abdulrahman, Noori M Cata Saady, Talib M Albayati

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Heliyon, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
5.5field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 75 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Nisreen S AliMustansiriyah University, College of Engineering, Materials Engineering Department Baghdad-Iraq, Iraq.
Ziad T AlismaeelDepartment of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Al-Jadryah, 47008, Baghdad, Iraq.
Hasan Sh MajdiDepartment of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University College, Babylon 51001, Iraq.
Hussein G SalihDepartment of Chemical Engineering, University of Technology- Iraq, 52 Alsinaa St., P.O. Box 35010, Baghdad, Iraq.
Mahir A AbdulrahmanDepartment of Chemical Engineering, University of Technology- Iraq, 52 Alsinaa St., P.O. Box 35010, Baghdad, Iraq.
Noori M Cata SaadyDepartment of Civil Engineering, Memorial University of Newfoundland, St. John's, NL A1B 3X5, Canada.
Talib M AlbayatiDepartment of Chemical Engineering, University of Technology- Iraq, 52 Alsinaa St., P.O. Box 35010, Baghdad, Iraq.
University of Technology - Iraq · IQMemorial University of Newfoundland · CAMustansiriyah University · IQUniversity of Baghdad · IQ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, a mesoporous SBA-15 silica catalyst was prepared and modified with encased 1% platinum (Pt) metal nanoparticles for the hydrocracking and hydroisomerization of n-heptane in a heterogeneous reaction. The textural and structural characteristics of the nanostructured silica, including both encased and non-encased nanoparticles, were measured using small-angle X-ray diffraction (XRD), nitrogen adsorption-desorption porosimetry, Brunauer-Emmett-Teller (BET) surface area analysis, Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Catalytic testing was carried out in a plug-flow reactor under highly controlled operating conditions involving the reactant flow rate, pressure, and temperature. Gas chromatography was used to analyze the species as they left the reactor. The results demonstrated that 1% Pt/SBA-15 has a high n-heptane conversion activity (approximately 85%). Based on the results of this experimental work, there is no selectivity in the SBA-15 catalysts for isomerization products because they are inactive at the relatively low temperature that is essential for hydroisomerization. On the other hand, the SBA-15 catalysts have a considerable selectivity for products that have cracks, owing to their ability to withstand extremely high temperatures (300-400 ​°C) as well as the availability of Lewis acid sites within the catalyst structure.

Indexed as

Catalytic testingCharacterization of SBA-15HydroisomerizationLong-chain n-alkanesNanoporous materialsOctane numberPlatinum catalystPlatinum precursorsSynthesis of SBA-15Zeolite

Identifiers

PMID35756106
PMCPMC9218147
OpenAlexW4282974829

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.