Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application
Transition metal phosphides are crucial for various environmental and energy applications. In this study, porous Ni12P5 and Ni12P5-rGO were synthesized using a one-step solvothermal method. Red phosphorus served as the phosphorus source, while ethylene glycol acted as a capping agent to promote the...
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Elsevier
2025-02-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025007947 |
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| author | Anil M. Palve Omkar V. Vani Rishabh Srivastava Wang Lin Ram K. Gupta |
| author_facet | Anil M. Palve Omkar V. Vani Rishabh Srivastava Wang Lin Ram K. Gupta |
| author_sort | Anil M. Palve |
| collection | DOAJ |
| description | Transition metal phosphides are crucial for various environmental and energy applications. In this study, porous Ni12P5 and Ni12P5-rGO were synthesized using a one-step solvothermal method. Red phosphorus served as the phosphorus source, while ethylene glycol acted as a capping agent to promote the formation of nanomaterials within a nitrogen-rich atmosphere. The catalytic performance of these materials was evaluated through their hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and capacitance properties. Notably, Ni12P5-rGO exhibited Tafel slopes of 66 mV/dec for OER and 33 mV/dec for HER, indicating enhanced charge transfer efficiency compared to Ni12P5, which showed slopes of 78 mV/dec and 102 mV/dec, respectively. This improvement suggests that Ni12P5-rGO facilitates faster electron transfer, resulting in superior catalytic performance. Additionally, the synergistic effect of reduced graphene oxide (rGO) contributes to improved charge storage capabilities. The Ni12P5-rGO demonstrated a specific capacitance of 192 F/g, significantly higher than the 110 F/g observed for Ni12P5 at a current density of 1 A/g. Remarkably, these materials maintained their capacity over 5000 cycles, achieving a commendable 98 % coulombic efficiency. These findings highlight the potential of Ni12P5-rGO as an effective material for energy conversion and storage applications, showcasing its promising role in advancing the efficiency of related technologies. |
| format | Article |
| id | doaj-art-41ec48095a6e41daaefe424e7cf9da3f |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
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| series | Heliyon |
| spelling | doaj-art-41ec48095a6e41daaefe424e7cf9da3f2025-02-05T04:32:21ZengElsevierHeliyon2405-84402025-02-01113e42414Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor applicationAnil M. Palve0Omkar V. Vani1Rishabh Srivastava2Wang Lin3Ram K. Gupta4Department of Chemistry, Mahatma Phule ASC College, Panvel, Navi-Mumbai, MH, 410206, India; Corresponding author.Department of Chemistry, Mahatma Phule ASC College, Panvel, Navi-Mumbai, MH, 410206, IndiaDepartment of Physics, Pittsburg State University, Pittsburg, KS, 66762, USA; National Institute of Material Advancement, Pittsburg State University, Pittsburg, KS, 66762, USANational Institute of Material Advancement, Pittsburg State University, Pittsburg, KS, 66762, USANational Institute of Material Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA; Department of Chemistry, Pittsburg State University, Pittsburg, KS, 66762, USATransition metal phosphides are crucial for various environmental and energy applications. In this study, porous Ni12P5 and Ni12P5-rGO were synthesized using a one-step solvothermal method. Red phosphorus served as the phosphorus source, while ethylene glycol acted as a capping agent to promote the formation of nanomaterials within a nitrogen-rich atmosphere. The catalytic performance of these materials was evaluated through their hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and capacitance properties. Notably, Ni12P5-rGO exhibited Tafel slopes of 66 mV/dec for OER and 33 mV/dec for HER, indicating enhanced charge transfer efficiency compared to Ni12P5, which showed slopes of 78 mV/dec and 102 mV/dec, respectively. This improvement suggests that Ni12P5-rGO facilitates faster electron transfer, resulting in superior catalytic performance. Additionally, the synergistic effect of reduced graphene oxide (rGO) contributes to improved charge storage capabilities. The Ni12P5-rGO demonstrated a specific capacitance of 192 F/g, significantly higher than the 110 F/g observed for Ni12P5 at a current density of 1 A/g. Remarkably, these materials maintained their capacity over 5000 cycles, achieving a commendable 98 % coulombic efficiency. These findings highlight the potential of Ni12P5-rGO as an effective material for energy conversion and storage applications, showcasing its promising role in advancing the efficiency of related technologies.http://www.sciencedirect.com/science/article/pii/S2405844025007947Nickel pnictidesEnergy applicationsSupercapacitorHydrogen and oxygen evolution reaction |
| spellingShingle | Anil M. Palve Omkar V. Vani Rishabh Srivastava Wang Lin Ram K. Gupta Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application Heliyon Nickel pnictides Energy applications Supercapacitor Hydrogen and oxygen evolution reaction |
| title | Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application |
| title_full | Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application |
| title_fullStr | Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application |
| title_full_unstemmed | Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application |
| title_short | Ni12P5 and Ni12P5-rGO for multifunctional electrocatalyst and supercapacitor application |
| title_sort | ni12p5 and ni12p5 rgo for multifunctional electrocatalyst and supercapacitor application |
| topic | Nickel pnictides Energy applications Supercapacitor Hydrogen and oxygen evolution reaction |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025007947 |
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