Institution
Vignan University
Education•Guntur, Andhra Pradesh, India•
About: Vignan University is a education organization based out in Guntur, Andhra Pradesh, India. It is known for research contribution in the topics: Computer science & Control theory. The organization has 1138 authors who have published 1381 publications receiving 7798 citations.
Papers
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TL;DR: In this paper, N-, O-, and S-tridoped carbon-encapsulated Co9S8 (Co 9S8@NOSC) nanomaterials are synthesized via simple pyrolysis of S- and Co(II)-containing polypyrrole solid precursors, and the materials are proven to serve as noble metal-free bifunctional electrocatalysts for water splitting in alkaline medium.
Abstract: The development of highly active and stable earth-abundant catalysts to reduce or eliminate the reliance on noble-metal based ones in green and sustainable (electro)chemical processes is nowadays of great interest. Here, N-, O-, and S-tridoped carbon-encapsulated Co9S8 (Co9S8@NOSC) nanomaterials are synthesized via simple pyrolysis of S- and Co(II)-containing polypyrrole solid precursors, and the materials are proven to serve as noble metal-free bifunctional electrocatalysts for water splitting in alkaline medium. The nanomaterials exhibit remarkable catalytic performances for oxygen evolution reaction in basic electrolyte, with small overpotentials, high anodic current densities, low Tafel slopes as well as very high (nearly 100%) Faradic efficiencies. Moreover, the materials are found to efficiently electrocatalyze hydrogen evolution reaction in acidic as well as basic solutions, showing high activity in both cases and maintaining good stability in alkaline medium. A two-electrode electrolyzer assembled using the material synthesized at 900 °C (Co9S8@NOSC-900) as an electrocatalyst at both electrodes gives current densities of 10 and 20 mA cm−2 at potentials of 1.60 and 1.74 V, respectively. The excellent electrocatalytic activity exhibited by the materials is proposed to be mainly due to the synergistic effects between the Co9S8 nanoparticles cores and the heteroatom-doped carbon shells in the materials.
357 citations
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TL;DR: The present review describes the biosurfactants and its synthesis from bacteria and also emphases on the role of surfactants in oil remediation.
279 citations
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TL;DR: In this paper, a facile synthetic method that yields Ag@CoxP core-shell-type heterogeneous nanostructures with excellent oxygen evolution reaction (OER) activity was presented.
Abstract: We present a facile synthetic method that yields Ag@CoxP core–shell-type heterogeneous nanostructures with excellent oxygen evolution reaction (OER) activity. This nanocatalyst can deliver a current density of 10 mA/cm2 at a small overpotential of 310 mV and exhibits high catalytic stability. Additionally, the catalytic activity of Ag@CoxP is 8 times higher than that of the Co2P nanoparticles, owing primarily to the strong electronic interaction between the Ag core and the CoxP shell.
135 citations
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TL;DR: The proposed antenna consisting of graphene nano ribbon as radiating patch and also the ground plane separated by a 20 μm thin polyimide substrate has achieved the broad impedance bandwidth (>5%) in the band of operation.
131 citations
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TL;DR: In this article, a multilayer perceptron model was used with back-propagation algorithm using the input parameters of nose radius, cutting speed, feed and volume of material removed.
120 citations
Authors
Showing all 1166 results
Name | H-index | Papers | Citations |
---|---|---|---|
Santosh Kumar Suman | 8 | 38 | 213 |
Venigalla Purnachandra Rao | 8 | 13 | 300 |
Sitaramanjaneya Reddy Guntur | 8 | 17 | 258 |
Navuluri Srinivasu | 8 | 23 | 177 |
V. Anuradha | 8 | 19 | 131 |
Anoar Ali Khan | 8 | 20 | 194 |
Chebolu Naga Sesha Sai Pavan Kumar | 8 | 29 | 309 |
S. Krupanidhi | 8 | 20 | 242 |
Ramanjaneyulu Mannam | 7 | 14 | 134 |
K. V. Krishna Kishore | 7 | 30 | 189 |
K. Abraham Peele | 7 | 17 | 256 |
Rahul Raveendran Nair | 7 | 16 | 129 |
Sachidanand Singh | 7 | 23 | 121 |
Vallabhuni Vijay | 7 | 8 | 130 |
M. Indira | 7 | 22 | 215 |