This document compares three sol-gel processes for synthesizing MnO2 nanowires and nanorods. Method 1 uses a low-temperature sol-gel process with surfactants in ethanol to produce ultrafine nanowires and nanorods from 200-500nm. Method 2 uses a hydrothermal method to selectively synthesize different crystal forms of MnO2 nanostructures. Method 3 uses anodic aluminum oxide templates in a two-step oxidation process to control pore diameter and periodicity. The comparison found that Method 1 produced the highest quality ultrafine nanowires using surfactants, and that the nanowires produced by Method 2 had the highest specific capacitance.

1. Comparison of Sol–gel process for the synthesis of ultrafine MnO2 nanowires and nanorods
MnO2
Manganese dioxide nano wires and its
derivative compounds have been generally
used in catalysts, absorbents Li+ related
batteries because of their exceptional
structural flexibility and huge amount of
oxidation states (Mn+2 Mn+3 and Mn+4
The current association give a inclusive
data on the synthesis of nano wires and
nanorods and their applications in super
capacitance and as biosensors ..This
comparison study covers three methods
involve sol gel process, for grounding of
nano wires and nanorods..
Introduction
Material and Methods:
Method 1 : A low-temperature sol–gel
process connected with different
surfactants in ethanol solvent where
applied to get ready ultrafine MnO2
nanowires and nanorods.. The
surfactants used in the synthesis
procedure are central for the structure
of harvest
Method 2: MnO2 nano materials of
different crystallographic types and
crystal morphologies have been
selectively synthesized via a facile
hydrothermal direction and
electrochemically investigate as the
cathode active equipment of primary
and rechargeable batteries
Method 3: Anodic aluminum oxide
(AAO) templates with uniform pore
diameter and periodicity were
fabricated using a two-step
oxidizating method..
Comparison of Result
This comparison is base upon different parameter in different
papers worn for the synthesis of MnO2 nano wire and nanorods
Method 1 Method 2 Method 3
Conclusion: The relative study shows that the highly discrete ultrafine nano wires and nanorods obtained with the surfactant..
Nano wires of 200-500nm are produced in the first method.. The nanowires produced by the method of Hang et al have highest specific
capacitanc..
Wang, X.., Wang, X.., Huang, W.., Sebastian, P.., & Gamboa, S.. (2005).. Sol–gel template synthesis of highly ordered MnO2 nanowire
arrays.. Journal of Power Sources, 140(1), 211-215.. doi:10..1016/j..jpowsour..2004..07..033
Facile Controlled Synthesis of MnO2 Nanostructures of Novel Shapes and Their Application in Batteries.. (n..d..)..
Wang, X.., Wang, X.., Huang, W.., Sebastian, P.., & Gamboa, S.. (2005).. Sol–gel template synthesis of highly ordered MnO2 nanowire
arrays.. Journal of Power Sources, 140(1), 211-215..
Muhammad Shahzad*1; Sammia Shahid
Department of Chemistry, School of Science , University of Management and Technology Lahore Pakistan
Corresponding Author : F2020140023@umt..edu..pk