Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction
Support materials are very crucial in noble metal electrocatalyst synthesis. They improve the catalytic activity of the noble metal by increasing their conductivity, surface area, and interactions. This report investigates the effect of support material on palladium nanoparticles’ electrochemical ac...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abdf1c |
| _version_ | 1797746765506543616 |
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| author | Mengistu Woldetinsay Tesfaye R Soreta Thandavarayan Maiyalagan Olu Emmanuel Femi |
| author_facet | Mengistu Woldetinsay Tesfaye R Soreta Thandavarayan Maiyalagan Olu Emmanuel Femi |
| author_sort | Mengistu Woldetinsay |
| collection | DOAJ |
| description | Support materials are very crucial in noble metal electrocatalyst synthesis. They improve the catalytic activity of the noble metal by increasing their conductivity, surface area, and interactions. This report investigates the effect of support material on palladium nanoparticles’ electrochemical activity towards hydrogen evolution reaction. The structural and morphological study was conducted using x-ray diffraction (XRD), Raman Spectroscopy, and Field Emission Scanning Electron Microscope (FE-SEM) that confirmed the support material has a significant effect on the structure of nanocomposite. The hydrogen evolution (HER) performance of the synthesized electrocatalyst was evaluated in 0.5 M H _2 SO _4 . The Pd-Ni/g-C _3 N _4 has higher catalytic activity with a lower overpotential of 55 mV at 10 mA cm ^2 current density and Tafel slope value 56 mV.dec ^−1 than other support material studied. The overpotential at 10 mA cm ^2 and Tafel slope value for electrocatalyst studied respectively are:- Pd/MoS _2 /CB( 78 mV at 10 mA cm ^2 and 57 mV.dec ^−1 ), Pd/g-C _3 N _4 (105 mV at 10 mA cm ^2 and 69 mV.dec ^−1 ) and Pd/CB(117 mV at 10 mA cm ^2 and 68 mV.dec ^−1 ). The impedance spectroscopy study shows Pd-Ni/g-C3N4 demonstrated the smallest semicircle. Further, the Chronoamparometry(CP) and linear sweep voltammetry (LSV) stability study of the highest performing electrocatalyst demonstrates negligible loss in current density for 12 h and minor change in the polarization curve after10,000 cycles. This study shows how the support material influences noble metal catalysts’ activity and stability via the support- metal interactions. |
| first_indexed | 2024-03-12T15:42:27Z |
| format | Article |
| id | doaj.art-c498a270584849309b144211f237fd8c |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:42:27Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-c498a270584849309b144211f237fd8c2023-08-09T15:56:56ZengIOP PublishingMaterials Research Express2053-15912021-01-018202550110.1088/2053-1591/abdf1cEffect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reactionMengistu Woldetinsay0Tesfaye R Soreta1Thandavarayan Maiyalagan2Olu Emmanuel Femi3https://orcid.org/0000-0002-6069-7968Faculty of Material Science and Engineering, Jimma Institute of Technology (JIT), Jimma University , PO Box 378 Jimma, Ethiopia; Department of Chemistry, Wollega University , PO Box 395 Nekemte, EthiopiaCenter for Materials Engineering, Addis Ababa Institute of Technology, Addis Ababa University , PO Box 1176 Addis Ababa, EthiopiaElectrochemical Energy Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, IndiaFaculty of Material Science and Engineering, Jimma Institute of Technology (JIT), Jimma University , PO Box 378 Jimma, EthiopiaSupport materials are very crucial in noble metal electrocatalyst synthesis. They improve the catalytic activity of the noble metal by increasing their conductivity, surface area, and interactions. This report investigates the effect of support material on palladium nanoparticles’ electrochemical activity towards hydrogen evolution reaction. The structural and morphological study was conducted using x-ray diffraction (XRD), Raman Spectroscopy, and Field Emission Scanning Electron Microscope (FE-SEM) that confirmed the support material has a significant effect on the structure of nanocomposite. The hydrogen evolution (HER) performance of the synthesized electrocatalyst was evaluated in 0.5 M H _2 SO _4 . The Pd-Ni/g-C _3 N _4 has higher catalytic activity with a lower overpotential of 55 mV at 10 mA cm ^2 current density and Tafel slope value 56 mV.dec ^−1 than other support material studied. The overpotential at 10 mA cm ^2 and Tafel slope value for electrocatalyst studied respectively are:- Pd/MoS _2 /CB( 78 mV at 10 mA cm ^2 and 57 mV.dec ^−1 ), Pd/g-C _3 N _4 (105 mV at 10 mA cm ^2 and 69 mV.dec ^−1 ) and Pd/CB(117 mV at 10 mA cm ^2 and 68 mV.dec ^−1 ). The impedance spectroscopy study shows Pd-Ni/g-C3N4 demonstrated the smallest semicircle. Further, the Chronoamparometry(CP) and linear sweep voltammetry (LSV) stability study of the highest performing electrocatalyst demonstrates negligible loss in current density for 12 h and minor change in the polarization curve after10,000 cycles. This study shows how the support material influences noble metal catalysts’ activity and stability via the support- metal interactions.https://doi.org/10.1088/2053-1591/abdf1csupport effectelectrocatalysthydrogen evolutionpalladium nanoparticleMoS2g-C3N4 |
| spellingShingle | Mengistu Woldetinsay Tesfaye R Soreta Thandavarayan Maiyalagan Olu Emmanuel Femi Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction Materials Research Express support effect electrocatalyst hydrogen evolution palladium nanoparticle MoS2 g-C3N4 |
| title | Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction |
| title_full | Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction |
| title_fullStr | Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction |
| title_full_unstemmed | Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction |
| title_short | Effect of support material on the electrocatalytic activity of palladium Nanoparticle toward hydrogen evolution reaction |
| title_sort | effect of support material on the electrocatalytic activity of palladium nanoparticle toward hydrogen evolution reaction |
| topic | support effect electrocatalyst hydrogen evolution palladium nanoparticle MoS2 g-C3N4 |
| url | https://doi.org/10.1088/2053-1591/abdf1c |
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