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Surya Kiran A, Ramulu B, Junied Arbaz S, Girija Shankar E, Nagaraju M, Yu JS. Rational construction of porous marigold flower-like nickel molybdenum phosphates via ion exchange for high-performance long-lasting hybrid supercapacitors. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02697j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
The assembled hybrid supercapacitor device using the urea-based nickel molybdenum phosphate nanopetals embedded microspheres electrode exhibits outstanding long-term cycling stability, demonstrating its practical applications.
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Affiliation(s)
- Ampasala Surya Kiran
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-aero, Gihung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Bhimanaboina Ramulu
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-aero, Gihung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Shaik Junied Arbaz
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-aero, Gihung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Edugulla Girija Shankar
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-aero, Gihung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Manchi Nagaraju
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-aero, Gihung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Jae Su Yu
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, 1732 Deogyeong-aero, Gihung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea
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Sharma P, Hasan MR, Mehto NK, Deepak, Bishoyi A, Narang J. 92 years of zinc oxide: has been studied by the scientific community since the 1930s- An overview. SENSORS INTERNATIONAL 2022. [DOI: 10.1016/j.sintl.2022.100182] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Developing Conductive Highly Ordered Zinc Oxide Nanorods by Acetylacetonate-Assisted Growth. MATERIALS 2020; 13:ma13051136. [PMID: 32143385 PMCID: PMC7084973 DOI: 10.3390/ma13051136] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/13/2020] [Accepted: 02/21/2020] [Indexed: 11/30/2022]
Abstract
Highly ordered vertically grown zinc oxide nanorods (ZnO NRs) were synthesized on ZnO-coated SiO2/Si substrate using zinc acetylacetonate hydrate as a precursor via a simple hydrothermal method at 85 °C. We used 0.05 M of ZnO solution to facilitate the growth of ZnO NRs and the immersion time was varied from 0.5 to 4 h. The atomic force microscopy revealed the surface roughness of ZnO seed layer used to grow the ZnO NRs. The morphology of vertically grown ZnO NRs was observed by field emission scanning electron microscopy. X-ray diffraction examination and transmission electron microscopy confirmed that the structure of highly ordered ZnO NRs was crystalline with a strong (002) peak corresponded to ZnO hexagonal wurtzite structure. The growth of highly ordered ZnO NRs was favorable due to the continuous supply of Zn2+ ions and chelating agents properties obtained from the acetylacetonate-derived precursor during the synthesis. Two-point probe current–voltage measurement and UV–vis spectroscopy of the ZnO NRs indicated a resistivity and optical bandgap value of 0.44 Ω.cm and 3.35 eV, respectively. The photoluminescence spectrum showed a broad peak centered at 623 nm in the visible region corresponded to the oxygen vacancies from the ZnO NRs. This study demonstrates that acetylacetonate-derived precursors can be used for the production of ZnO NRs-based devices with a potential application in biosensors.
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Youssry SM, El-Hallag I, Kumar R, Kawamura G, Matsuda A, El-Nahass MN. Synthesis of mesoporous Co(OH)2 nanostructure film via electrochemical deposition using lyotropic liquid crystal template as improved electrode materials for supercapacitors application. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113728] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pu T, Li J, Jiang Y, Huang B, Wang W, Zhao C, Xie L, Chen L. Size and crystallinity control of two-dimensional porous cobalt oxalate thin sheets: tuning surface structure with enhanced performance for aqueous asymmetric supercapacitors. Dalton Trans 2018; 47:9241-9249. [DOI: 10.1039/c8dt01920g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous cobalt oxalate thin sheets with enhanced performance were synthesized under hydrothermal condition.
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Affiliation(s)
- Tao Pu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Jie Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Yuqian Jiang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Biao Huang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Wensong Wang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Chenglan Zhao
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Li Xie
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Lingyun Chen
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- China
- National-Municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction
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