Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins

Selective CO2 hydrogenation to light olefins over Fe−Co/K−Al2O3 catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly...

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Main Authors: Numpilai, Thanapha, Chanlek, Narong, Poo‐Arporn, Yingyot, Cheng, C. K., Siri‐Nguan, Nuchanart, Sornchamni, Thana, Chareonpanich, Metta, Kongkachuichay, Paisan, Yigit, Nevzat, Rupprechter, Günther, Limtrakul, Jumras, Witoon, Thongthai
Format: Article
Language:English
Published: Wiley Blackwell 2020
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Online Access:http://umpir.ump.edu.my/id/eprint/32299/1/Tuning%20interactions%20of%20surface%E2%80%90adsorbed%20species%20over%20Fe%E2%88%92Co.pdf
http://umpir.ump.edu.my/id/eprint/32299/
https://doi.org/10.1002/cctc.202000347
https://doi.org/10.1002/cctc.202000347
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spelling my.ump.umpir.322992021-11-08T03:37:58Z http://umpir.ump.edu.my/id/eprint/32299/ Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins Numpilai, Thanapha Chanlek, Narong Poo‐Arporn, Yingyot Cheng, C. K. Siri‐Nguan, Nuchanart Sornchamni, Thana Chareonpanich, Metta Kongkachuichay, Paisan Yigit, Nevzat Rupprechter, Günther Limtrakul, Jumras Witoon, Thongthai TP Chemical technology Selective CO2 hydrogenation to light olefins over Fe−Co/K−Al2O3 catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly raised upon ascending K/Fe to 2.5. The positive effect of K addition is attributed to the strong interaction of H adsorbed with the catalyst surface caused by the electron donor from K to Fe species. Although the Fe−Co/K−Al2O3 catalyst with K/Fe=2.5 reached the highest O/P ratio of 7.6, the maximum yield of light olefins of 16.4 % was achieved by the catalyst promoted with K/Fe of 0.5. This is explained by the considerable reduction of amount of H2 adsorbed on the catalyst surface with K/Fe=2.5. Wiley Blackwell 2020-03-08 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/32299/1/Tuning%20interactions%20of%20surface%E2%80%90adsorbed%20species%20over%20Fe%E2%88%92Co.pdf Numpilai, Thanapha and Chanlek, Narong and Poo‐Arporn, Yingyot and Cheng, C. K. and Siri‐Nguan, Nuchanart and Sornchamni, Thana and Chareonpanich, Metta and Kongkachuichay, Paisan and Yigit, Nevzat and Rupprechter, Günther and Limtrakul, Jumras and Witoon, Thongthai (2020) Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins. ChemCatChem, 12 (12). 3306 -3320. ISSN 1867-3899 https://doi.org/10.1002/cctc.202000347 https://doi.org/10.1002/cctc.202000347
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Numpilai, Thanapha
Chanlek, Narong
Poo‐Arporn, Yingyot
Cheng, C. K.
Siri‐Nguan, Nuchanart
Sornchamni, Thana
Chareonpanich, Metta
Kongkachuichay, Paisan
Yigit, Nevzat
Rupprechter, Günther
Limtrakul, Jumras
Witoon, Thongthai
Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins
description Selective CO2 hydrogenation to light olefins over Fe−Co/K−Al2O3 catalysts was enhanced by tuning bonding strengths of adsorbed species by varying the content of the K promotor. Increasing the K/Fe atomic ratio from 0 to 0.5 increased the olefins/paraffins (O/P) ratio by 25.4 times, but then slightly raised upon ascending K/Fe to 2.5. The positive effect of K addition is attributed to the strong interaction of H adsorbed with the catalyst surface caused by the electron donor from K to Fe species. Although the Fe−Co/K−Al2O3 catalyst with K/Fe=2.5 reached the highest O/P ratio of 7.6, the maximum yield of light olefins of 16.4 % was achieved by the catalyst promoted with K/Fe of 0.5. This is explained by the considerable reduction of amount of H2 adsorbed on the catalyst surface with K/Fe=2.5.
format Article
author Numpilai, Thanapha
Chanlek, Narong
Poo‐Arporn, Yingyot
Cheng, C. K.
Siri‐Nguan, Nuchanart
Sornchamni, Thana
Chareonpanich, Metta
Kongkachuichay, Paisan
Yigit, Nevzat
Rupprechter, Günther
Limtrakul, Jumras
Witoon, Thongthai
author_facet Numpilai, Thanapha
Chanlek, Narong
Poo‐Arporn, Yingyot
Cheng, C. K.
Siri‐Nguan, Nuchanart
Sornchamni, Thana
Chareonpanich, Metta
Kongkachuichay, Paisan
Yigit, Nevzat
Rupprechter, Günther
Limtrakul, Jumras
Witoon, Thongthai
author_sort Numpilai, Thanapha
title Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins
title_short Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins
title_full Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins
title_fullStr Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins
title_full_unstemmed Tuning interactions of surface‐adsorbed species over Fe−Co/K−Al2O3 catalyst by different K contents: selective CO2 hydrogenation to light olefins
title_sort tuning interactions of surface‐adsorbed species over fe−co/k−al2o3 catalyst by different k contents: selective co2 hydrogenation to light olefins
publisher Wiley Blackwell
publishDate 2020
url http://umpir.ump.edu.my/id/eprint/32299/1/Tuning%20interactions%20of%20surface%E2%80%90adsorbed%20species%20over%20Fe%E2%88%92Co.pdf
http://umpir.ump.edu.my/id/eprint/32299/
https://doi.org/10.1002/cctc.202000347
https://doi.org/10.1002/cctc.202000347
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score 13.211869