Harnessing the Potential of UU 200/Bi4O8 Nanocomposite to Optimize Energy Efficiency in Supercapacitor and Electrocatalysis Application

IF 3.7 2区化学 Q2 CHEMISTRY, APPLIED

Applied Organometallic Chemistry Pub Date : 2025-02-05 DOI:10.1002/aoc.70001

S. Sarmila, Sethumathavan Vadivel, P. Sujita, V. Gopal

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Abstract

In the pursuit of sustainable energy solutions, the spotlight shines on the advancement of effective energy storage systems and green hydrogen production. In this work, UU 200 (UU: Uppsala University) metal–organic framework (MOF)/bismuth oxide (Bi₄O₈), termed the UU 200/Bi₄O₈ nanocomposite, has been synthesized and utilized as an electrode material for supercapacitor applications and an electrocatalyst for hydrogen evolution reaction (HER). XRD, Raman, FT-IR, and XPS tests showed that the UU 200/Bi₄O₈ nanocomposite was successfully formed. The SEM and TEM images revealed that the UU 200/Bi₄O₈ nanocomposite exhibits a mixed rod and spherical structure. The supercapacitor performance of pure UU 200 and UU 200/Bi₄O₈ nanocomposite has been examined through cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance (EIS) measurements. Interestingly, the UU 200/Bi₄O₈ nanocomposite delivered a maximum specific capacitance value of 220 F g⁻¹ at 1 A g⁻¹. Furthermore, the UU 200/Bi₄O₈ nanocomposite potential was extended beyond its energy storage capability to the electrocatalytic HER process. The electrocatalytic HER performances were assessed through linear sweep voltammetry (LSV), CV, chronoamperometry (CA), and EIS analysis. The overpotential (ɳ) of 130 mV and the Tafel slope value of 131 mV dec⁻¹ indicate the UU 200/Bi₄O₈ nanocomposite supremacy in advanced applications. The UU 200/Bi₄O₈ nanocomposite electrode has excellent supercapacitor and water-splitting performance, allowing it to acquire green energy for future energy needs.

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来源期刊

Applied Organometallic Chemistry 化学-无机化学与核化学

CiteScore

7.80

自引率

10.30%

发文量

408

审稿时长

2.2 months

期刊介绍： All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.