Fabrication of flower-like bismuth vanadate hierarchical spheres for an improved supercapacitor efficiency

Balachandran，Subramanian1,2,3; Karthikeyan，Rajan4,5; Jothi，Kumaravel Jeeva6; Manimuthu，Veerappan7; Prakash，Natarajan8; Chen，Zheming1; Liang，Tongxiang4; Hu，Chengzhi3; Wang，Feng1; Yang，Mingshu1

2022-01-07

10.1039/d1ma00810b

Materials Advances   影响因子和分区

2633-5409

A cost-effective and simple method has been developed for the preparation of flower-like hierarchical spheres of semiconductor oxide materials. Efficient self-assembly of BiVO4 flower-like hierarchical spheres was performed via a simple hydrothermal method, followed by calcination at 500 °C. X-ray diffraction (XRD) studies distinguished diffraction planes of the monoclinic BiVO4 phase, which was further confirmed by field emission scanning electron microscopy (FESEM) analysis. The electronic and optical properties of BiVO4 were studied via X-ray photoelectron spectroscopy (XPS) and UV-visible spectroscopy. XPS analysis confirmed the binding energy relations and the formation of BiVO4, and also an increase in the Bi-O, V-O bond strengths in BiVO4. The remarkable efficiency of pseudocapacitor electrode materials depends on the consistent fabrication of nano architectures. The carbon-free BiVO4 electrodes showed a higher specific capacitance of 1203 F g-1 at 2 A g-1, without detectable degradation after 2000 cycles and a beneficial cycling stability was achieved because of the electrochemical activity of the distinctive porous hierarchical architecture. Our synthetic method suggests a simple procedure for the design and fabrication of bismuth vanadate hierarchical nano architectures, encouraging electrochemical energy storage. These nanocomposites could be utilized as anode materials in lithium-ion batteries.

ESCI

英语

通讯

WOS:000711408600001

2-s2.0-85122893183

Scopus

1.Beijing National Laboratory for Molecular Sciences,Key Laboratory of Engineering Plastics,Institute of Chemistry,Chinese Academy of Sciences,Beijing,Zhongguancun North First Street 2,100190,China
2.Center for Nanoscience and Technology,Chennai Institute of Technology,Chennai,Sarathy Nagar Kundrathur Tami Nadu,600069,India
3.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,China
4.Engineering Research Centre for Hydrogen Energy Materials and Devices,College of Rare Earths (CORE),Jiangxi University of Science and Technology,Ganzhou,Jiangxi,341000,China
5.Division of Physical Sciences,Department of Science and Humanities,Saveetha School of Engineering,Saveetha Institute of Medical and Technical Sciences,Saveetha University,Thanadalam,Tamil Nadu,600056,India
6.Central Institute of Plastics Engineering and Technology,Plastics Technology Guindy Chennai,Chennai,Tami Nadu,600032,India
7.Department of Electrical and Electronic Engineering,Southern University of Science and Technology Nanshan District,Shenzhen,Guangdong,518055,China
8.Division of Chemistry,Department of Science and Humanities,Saveetha School of Engineering,Saveetha Institute of Medical and Technical Sciences,Saveetha University,Thanadalam,Tamil Nadu,600056,India

Balachandran，Subramanian,Karthikeyan，Rajan,Jothi，Kumaravel Jeeva,et al. Fabrication of flower-like bismuth vanadate hierarchical spheres for an improved supercapacitor efficiency[J]. Materials Advances,2022,3(1):254-264.

Balachandran，Subramanian.,Karthikeyan，Rajan.,Jothi，Kumaravel Jeeva.,Manimuthu，Veerappan.,Prakash，Natarajan.,...&Yang，Mingshu.(2022).Fabrication of flower-like bismuth vanadate hierarchical spheres for an improved supercapacitor efficiency.Materials Advances,3(1),254-264.

Balachandran，Subramanian,et al."Fabrication of flower-like bismuth vanadate hierarchical spheres for an improved supercapacitor efficiency".Materials Advances 3.1(2022):254-264.