Aryl diazonium modification for improved graphite fibre brush in microbial fuel cell
Aryl diazonium salts are coupling agents that assist in molecules attachment to interfaces for sensing purposes. Despite not being fully explored and not yet widely applicable for cell-based sensors, the high stability of aryl diazonium salt formed sensing system is highly favorable in biological ap...
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Penerbit Universiti Kebangsaan Malaysia
2018
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| Online Access: | http://journalarticle.ukm.my/12923/ http://journalarticle.ukm.my/12923/ http://journalarticle.ukm.my/12923/1/11%20Siti%20Farah%20Nadiah%20Rusli%2C.pdf |
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eprints |
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ukm-129232019-05-15T11:03:55Z http://journalarticle.ukm.my/12923/ Aryl diazonium modification for improved graphite fibre brush in microbial fuel cell Siti Farah Nadiah Rusli, Mimi Hani Abu Bakar, Seratul Jemiah Abdul Rani, Loh, Kee Shyuan Mohd Shahbudin Mastar, Aryl diazonium salts are coupling agents that assist in molecules attachment to interfaces for sensing purposes. Despite not being fully explored and not yet widely applicable for cell-based sensors, the high stability of aryl diazonium salt formed sensing system is highly favorable in biological applications. Carbon-based electrodes are the most commonly used in aryl diazonium modification due to its post grafting stable C-C bond formation. Here, salt bridge based microbial fuel cells (MFCs) were used to study on the effect of aryl diazonium modification on the anode graphite fibre brush. Aryl diazonium salts were in situ generated by the diazonation of p-phenylenediamine with NaNO2 in HCl solution. The electrochemical performance of the aryl diazonium modified graphite brush MFC was measured and compared with the unmodified graphite brush MFC. The power output of the modified graphite brush bioanode was higher (8.33 W/m3) than the unmodified graphite brush (7.60 W/m3) after 20 days of operation with ferricyanide as the catholyte. After 70 days of operation using phosphate buffer solution as the catholyte, the Pmax of modified brush was three times higher (0.06 W/m3) than of the unmodified brush (0.02 W/m3), which indicates an enhanced binding towards the substrate that facilitates a better electron transfer between the microbial and electrode surface. Penerbit Universiti Kebangsaan Malaysia 2018-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12923/1/11%20Siti%20Farah%20Nadiah%20Rusli%2C.pdf Siti Farah Nadiah Rusli, and Mimi Hani Abu Bakar, and Seratul Jemiah Abdul Rani, and Loh, Kee Shyuan and Mohd Shahbudin Mastar, (2018) Aryl diazonium modification for improved graphite fibre brush in microbial fuel cell. Sains Malaysiana, 47 (12). pp. 3017-3023. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid47bil12_2018/KandunganJilid47Bil12_2018.html |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
Universiti Kebangasaan Malaysia |
| building |
UKM Institutional Repository |
| collection |
Online Access |
| language |
English |
| description |
Aryl diazonium salts are coupling agents that assist in molecules attachment to interfaces for sensing purposes. Despite not being fully explored and not yet widely applicable for cell-based sensors, the high stability of aryl diazonium salt formed sensing system is highly favorable in biological applications. Carbon-based electrodes are the most commonly used in aryl diazonium modification due to its post grafting stable C-C bond formation. Here, salt bridge based microbial fuel cells (MFCs) were used to study on the effect of aryl diazonium modification on the anode graphite fibre brush. Aryl diazonium salts were in situ generated by the diazonation of p-phenylenediamine with NaNO2 in HCl solution. The electrochemical performance of the aryl diazonium modified graphite brush MFC was measured and compared with the unmodified graphite brush MFC. The power output of the modified graphite brush bioanode was higher (8.33 W/m3) than the unmodified graphite brush (7.60 W/m3) after 20 days of operation with ferricyanide as the catholyte. After 70 days of operation using phosphate buffer solution as the catholyte, the Pmax of modified brush was three times higher (0.06 W/m3) than of the unmodified brush (0.02 W/m3), which indicates an enhanced binding towards the substrate that facilitates a better electron transfer between the microbial and electrode surface. |
| format |
Article |
| author |
Siti Farah Nadiah Rusli, Mimi Hani Abu Bakar, Seratul Jemiah Abdul Rani, Loh, Kee Shyuan Mohd Shahbudin Mastar, |
| spellingShingle |
Siti Farah Nadiah Rusli, Mimi Hani Abu Bakar, Seratul Jemiah Abdul Rani, Loh, Kee Shyuan Mohd Shahbudin Mastar, Aryl diazonium modification for improved graphite fibre brush in microbial fuel cell |
| author_facet |
Siti Farah Nadiah Rusli, Mimi Hani Abu Bakar, Seratul Jemiah Abdul Rani, Loh, Kee Shyuan Mohd Shahbudin Mastar, |
| author_sort |
Siti Farah Nadiah Rusli, |
| title |
Aryl diazonium modification for improved graphite fibre
brush in microbial fuel cell |
| title_short |
Aryl diazonium modification for improved graphite fibre
brush in microbial fuel cell |
| title_full |
Aryl diazonium modification for improved graphite fibre
brush in microbial fuel cell |
| title_fullStr |
Aryl diazonium modification for improved graphite fibre
brush in microbial fuel cell |
| title_full_unstemmed |
Aryl diazonium modification for improved graphite fibre
brush in microbial fuel cell |
| title_sort |
aryl diazonium modification for improved graphite fibre
brush in microbial fuel cell |
| publisher |
Penerbit Universiti Kebangsaan Malaysia |
| publishDate |
2018 |
| url |
http://journalarticle.ukm.my/12923/ http://journalarticle.ukm.my/12923/ http://journalarticle.ukm.my/12923/1/11%20Siti%20Farah%20Nadiah%20Rusli%2C.pdf |
| first_indexed |
2023-09-18T20:03:42Z |
| last_indexed |
2023-09-18T20:03:42Z |
| _version_ |
1777407017135112192 |