Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance
In this paper, we report the optimization of nickel cobalt phosphate (NiCoP) as a positive electrode material by response surface methodology and central composite design (RSM/CCD) for electrochromic energy storage applications. The NiCoP composite was prepared using the facile electrodeposition tec...
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| Format: | Article |
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Elsevier
2023
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| _version_ | 1825939704607932416 |
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| author | Mustafa, Muhammad Norhaffis Mohd Abdah, Muhammad Amirul Aizat Numan, Arshid Sulaiman, Yusran Walvekar, Rashmi Mohammad Khalid |
| author_facet | Mustafa, Muhammad Norhaffis Mohd Abdah, Muhammad Amirul Aizat Numan, Arshid Sulaiman, Yusran Walvekar, Rashmi Mohammad Khalid |
| author_sort | Mustafa, Muhammad Norhaffis |
| collection | UPM |
| description | In this paper, we report the optimization of nickel cobalt phosphate (NiCoP) as a positive electrode material by response surface methodology and central composite design (RSM/CCD) for electrochromic energy storage applications. The NiCoP composite was prepared using the facile electrodeposition technique, where four input variables (concentration of precursors, number of CV cycles, and scan rate) were optimized simultaneously towards the surface response (specific capacity). The statistical analysis showed that all four factors have significantly affected the specific capacity of NiCoP. The reduced quadratic model obtained can accurately predict the specific capacity of NiCoP electrode material up to 97% with a 3% residual standard error. The novel NiCoP electrode materials display remarkable electrochromic properties (67.57 cm2/C) with reversible color changes from light green (0 V) to dark brown (0.5 V) and outstanding supercapacitive performance (323.74 C/g) owing to the synergistic effect of bimetallic oxides (NiCo) that help to produce more active sites, as well as increase the electrical conductivity and high surface area phosphate, which is advantageous to the transport of ions. Furthermore, the as-prepared NiCoP//Ac device shows a remarkably high specific energy of 10.88 Wh/kg at a specific power of 750 W/kg (1 A/g), and the NiCoP//Ac device is capable of retaining up to 70% of its capacity even after 5000 cycles, demonstrating good energy storage performances. |
| first_indexed | 2024-12-09T02:21:17Z |
| format | Article |
| id | upm.eprints-109062 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-12-09T02:21:17Z |
| publishDate | 2023 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-1090622024-10-14T03:55:48Z http://psasir.upm.edu.my/id/eprint/109062/ Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance Mustafa, Muhammad Norhaffis Mohd Abdah, Muhammad Amirul Aizat Numan, Arshid Sulaiman, Yusran Walvekar, Rashmi Mohammad Khalid In this paper, we report the optimization of nickel cobalt phosphate (NiCoP) as a positive electrode material by response surface methodology and central composite design (RSM/CCD) for electrochromic energy storage applications. The NiCoP composite was prepared using the facile electrodeposition technique, where four input variables (concentration of precursors, number of CV cycles, and scan rate) were optimized simultaneously towards the surface response (specific capacity). The statistical analysis showed that all four factors have significantly affected the specific capacity of NiCoP. The reduced quadratic model obtained can accurately predict the specific capacity of NiCoP electrode material up to 97% with a 3% residual standard error. The novel NiCoP electrode materials display remarkable electrochromic properties (67.57 cm2/C) with reversible color changes from light green (0 V) to dark brown (0.5 V) and outstanding supercapacitive performance (323.74 C/g) owing to the synergistic effect of bimetallic oxides (NiCo) that help to produce more active sites, as well as increase the electrical conductivity and high surface area phosphate, which is advantageous to the transport of ions. Furthermore, the as-prepared NiCoP//Ac device shows a remarkably high specific energy of 10.88 Wh/kg at a specific power of 750 W/kg (1 A/g), and the NiCoP//Ac device is capable of retaining up to 70% of its capacity even after 5000 cycles, demonstrating good energy storage performances. Elsevier 2023-02-10 Article PeerReviewed Mustafa, Muhammad Norhaffis and Mohd Abdah, Muhammad Amirul Aizat and Numan, Arshid and Sulaiman, Yusran and Walvekar, Rashmi and Mohammad Khalid (2023) Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance. Electrochimica Acta, 441. art. no. 141765. pp. 1-14. ISSN 0013-4686 https://linkinghub.elsevier.com/retrieve/pii/S0013468622019211 10.1016/j.electacta.2022.141765 |
| spellingShingle | Mustafa, Muhammad Norhaffis Mohd Abdah, Muhammad Amirul Aizat Numan, Arshid Sulaiman, Yusran Walvekar, Rashmi Mohammad Khalid Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
| title | Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
| title_full | Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
| title_fullStr | Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
| title_full_unstemmed | Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
| title_short | Specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
| title_sort | specific capacity optimization of nickel cobalt phosphate using response surface methodology for enhanced electrochromic energy storage performance |
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