NDLI: Controlled synthesis of MnO$_{2}$ nanoparticles for aqueous battery cathodes: polymorphism

Content Provider	Springer Nature Link
Author	Moazzen, Elahe Timofeeva, Elena V. Segre, Carlo U.
Copyright Year	2017
Abstract	Polymorphs of MnO$_{2}$ are known to have different electrochemical activity, with gamma (γ) and akhtenskite (ε) polymorphs often considered as the most active phases for aqueous battery cathodes. However, most synthetic samples contain a mixture of polymorph phases, which makes understanding of the structure-property correlations more complicated. In this paper, we report on a systematic study that correlates synthesis parameters with the morphology, phase composition and reversible storage capacity of the resulting nanoparticles. Rietveld analysis of X-ray powder diffraction patterns was used to accurately describe fractional composition of multi-phase nanoparticles. It was demonstrated that through control of the synthesis parameters desired phase compositions and nanoparticle morphologies can be achieved. The key synthesis parameters were found to be the concentration of Mn$^{2+}$ precursor which strongly affects both the morphology and the crystalline structure of the products, and the time of reaction. The presence of surfactant only impacts the crystalline phase composition of the MnO$_{2}$ nanoparticles and has insignificant effect on the morphology. It was also demonstrated that nanoparticles with higher fraction of the akhtenskite polymorph show higher reversible capacities in LiOH electrolyte (~210 mAh/g) compared to other MnO$_{2}$ phase compositions (~120 mAh/g).
Starting Page	8107
Ending Page	8118
Page Count	12
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	52
Issue Number	13
e-ISSN	15734803
Language	English
Publisher	Springer US
Publisher Date	2017-03-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Materials Science Characterization and Evaluation of Materials Polymer Sciences Continuum Mechanics and Mechanics of Materials Crystallography and Scattering Methods Classical Mechanics
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Synthesis of Au@CdS core–shell nanoparticles and their photocatalytic capacity researched by SERS

Novel highly ordered core–shell nanoparticles

Low pressure synthesis of BiMnO$_{3}$ nanoparticles: anomalous structural and magnetic features

Phase- and size-controllable synthesis with efficient photocatalytic activity of ZnS nanoparticles

One-pot morphology-controlled synthesis of various shaped mesoporous silica nanoparticles

Controlled synthesis of MnFe$_{2}$O$_{4}$–Ni core–shell nanoparticles

Arsenic adsorption on cobalt and manganese ferrite nanoparticles

Synthesis of magnetic FeWO$_{4}$ nanoparticles and their decoration of WS$_{2}$ nanotubes surface

Synthesis of silver nanoparticles using large-area arc discharge and its application in electronic packaging

Controlled synthesis of MnO$_{2}$ nanoparticles for aqueous battery cathodes: polymorphism–capacity correlation

Similar Documents

Synthesis of Au@CdS core–shell nanoparticles and their photocatalytic capacity researched by SERS

Novel highly ordered core–shell nanoparticles

Low pressure synthesis of BiMnO$_{3}$ nanoparticles: anomalous structural and magnetic features

Phase- and size-controllable synthesis with efficient photocatalytic activity of ZnS nanoparticles

One-pot morphology-controlled synthesis of various shaped mesoporous silica nanoparticles

Controlled synthesis of MnFe$_{2}$O$_{4}$–Ni core–shell nanoparticles

Arsenic adsorption on cobalt and manganese ferrite nanoparticles

Synthesis of magnetic FeWO$_{4}$ nanoparticles and their decoration of WS$_{2}$ nanotubes surface

Synthesis of silver nanoparticles using large-area arc discharge and its application in electronic packaging

Controlled synthesis of MnO$_{2}$ nanoparticles for aqueous battery cathodes: polymorphism–capacity correlation