Sundus Azhar, Khuram Shahzad Ahmad, Isaac Abrahams, Wang Lin, Ram K. Gupta, Essam A. Al-Ammar, Ghulam Abbas Ashraf
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TMO based nanomaterials have vast role in energy related applications.</p>\n </section>\n \n <section>\n \n <h3> Materials & methods</h3>\n \n <p>In this study, organic compounds of A. Viridis were used as reducing and stabilizing agents in the synthesis of binary nanocomposite Sb<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub>. The synthesized nanocomposite was characterized using x-ray diffraction, Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, field emission scanning electron microscopy and energy dispersive spectroscopy. The electrode material was analyzed for supercapacitor potential using cyclic voltammetry and galvanostatic charge discharge techniques. HER and OER studies were also conducted using electrochemical impedance spectroscopy and linear sweep voltammetry. The synthesized material was also tested for stability.</p>\n </section>\n \n <section>\n \n <h3> Results & discussion</h3>\n \n <p>The crystal size was 15.9 nm. Optical band gap of 2.55 eV was obtained through Tauc plot. The capacitance value of 339.8 F/g at 2 mV/s and the specific capacitance of 100.6 F/g was obtained at 1 A/g. The overpotential value of 201 mV and Tafel value of 121 mV/dec was recorded for the HER, whereas the lower Tafel value of 106 mV/dec and over potential value of 383 mV was determined for OER. Electrode showed promising stability up to various cycles in case of both applications.</p>\n </section>\n \n <section>\n \n <h3> Conclusion</h3>\n \n <p>The obtained results revealed the promising performance with excellent stability of fabricated electrode for super capacitor as well as water splitting studies.</p>\n </section>\n </div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exploring the synergistic power: Green synthesis, comprehensive characterization, and unveiling the energy generation and storage aptitude of phyto-mediated Sb2O3-ZrO2 nanocomposite\",\"authors\":\"Sundus Azhar, Khuram Shahzad Ahmad, Isaac Abrahams, Wang Lin, Ram K. Gupta, Essam A. 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引用次数: 0
摘要
背景研究人员热衷于通过制造由对环境无害的廉价材料组成的电催化剂来降低过电位值。另一方面，超级电容器作为一种能量存储设备，近年来受到了极大的关注，因为与传统的基于电池的存储系统相比，这些设备具有高功率密度的潜力。材料和amp; 方法本研究使用 A. Viridis 的有机化合物作为还原剂和稳定剂合成二元纳米复合材料 Sb2O3-ZrO2。使用 X 射线衍射、傅立叶变换红外光谱、紫外-可见光谱、场发射扫描电子显微镜和能量色散光谱对合成的纳米复合材料进行了表征。使用循环伏安法和电静态充电放电技术分析了电极材料的超级电容器电势。此外，还使用电化学阻抗光谱法和线性扫描伏安法进行了 HER 和 OER 研究。还测试了合成材料的稳定性。通过陶克曲线图得出光带隙为 2.55 eV。2 mV/s 时的电容值为 339.8 F/g，1 A/g 时的比电容值为 100.6 F/g。HER 的过电位值为 201 mV，Tafel 值为 121 mV/dec，而 OER 的 Tafel 值较低，为 106 mV/dec，过电位值为 383 mV。在这两种应用中，电极在各种循环中均表现出良好的稳定性。
Exploring the synergistic power: Green synthesis, comprehensive characterization, and unveiling the energy generation and storage aptitude of phyto-mediated Sb2O3-ZrO2 nanocomposite
Background
Researchers are keen to reduce the over potential value through fabrication of electrocatalyst consisted of environmentally benign and inexpensive material. Supercapacitors on the other hand have gained immense attention in recent years as an energy storage device due to the high power density potential of these devices as compared to conventional batteries based storage system.
Aim
The research aims to synthesize nanoscale transition metal oxides (TMO) through green route. TMO based nanomaterials have vast role in energy related applications.
Materials & methods
In this study, organic compounds of A. Viridis were used as reducing and stabilizing agents in the synthesis of binary nanocomposite Sb2O3–ZrO2. The synthesized nanocomposite was characterized using x-ray diffraction, Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, field emission scanning electron microscopy and energy dispersive spectroscopy. The electrode material was analyzed for supercapacitor potential using cyclic voltammetry and galvanostatic charge discharge techniques. HER and OER studies were also conducted using electrochemical impedance spectroscopy and linear sweep voltammetry. The synthesized material was also tested for stability.
Results & discussion
The crystal size was 15.9 nm. Optical band gap of 2.55 eV was obtained through Tauc plot. The capacitance value of 339.8 F/g at 2 mV/s and the specific capacitance of 100.6 F/g was obtained at 1 A/g. The overpotential value of 201 mV and Tafel value of 121 mV/dec was recorded for the HER, whereas the lower Tafel value of 106 mV/dec and over potential value of 383 mV was determined for OER. Electrode showed promising stability up to various cycles in case of both applications.
Conclusion
The obtained results revealed the promising performance with excellent stability of fabricated electrode for super capacitor as well as water splitting studies.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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