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Title: Synthesis of Copper Birnessite, CuxMnOy·nH2O with Crystallite Size Control: Impact of Crystallite Size on Electrochemistry

Abstract

This report describes the first detailed electrochemical examination of a series of copper birnessite samples under lithium-based battery conditions, allowing a structure/function analysis of the electrochemistry and related material properties. To obtain the series of copper birnessite samples, a novel synthetic approach for the preparation of copper birnessite, CuxMnOy·nH2O is reported. The copper content (x) in CuxMnOy·nH2O, 0.28 >= x >= 0.20, was inversely proportional to crystallite size, which ranged from 12 to 19 nm. The electrochemistry under lithium-based battery conditions showed that the higher copper content (x = 0.28) and small crystallite size (similar to 12 nm) sample delivered similar to 194 mAh/g, about 20% higher capacity than the low copper content (x = 0.22) and larger crystallite size (similar to 19 nm) material. In addition, CuxMnOy·nH2O displays quasi-reversible electrochemistry in magnesium based electrolytes, indicating that copper birnessite could be a candidate for future application in magnesium-ion batteries.

Authors:
 [1];  [1];  [2];  [1]
  1. Stony Brook Univ., NY (United States)
  2. Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
State Univ. of New York (SUNY), Stony Brook, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1437949
Grant/Contract Number:  
SC0008512
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 163; Journal Issue: 2; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Li, Yue Ru, Marschilok, Amy C., Takeuchi, Esther S., and Takeuchi, Kenneth J. Synthesis of Copper Birnessite, CuxMnOy·nH2O with Crystallite Size Control: Impact of Crystallite Size on Electrochemistry. United States: N. p., 2015. Web. doi:10.1149/2.0501602jes.
Li, Yue Ru, Marschilok, Amy C., Takeuchi, Esther S., & Takeuchi, Kenneth J. Synthesis of Copper Birnessite, CuxMnOy·nH2O with Crystallite Size Control: Impact of Crystallite Size on Electrochemistry. United States. https://doi.org/10.1149/2.0501602jes
Li, Yue Ru, Marschilok, Amy C., Takeuchi, Esther S., and Takeuchi, Kenneth J. 2015. "Synthesis of Copper Birnessite, CuxMnOy·nH2O with Crystallite Size Control: Impact of Crystallite Size on Electrochemistry". United States. https://doi.org/10.1149/2.0501602jes. https://www.osti.gov/servlets/purl/1437949.
@article{osti_1437949,
title = {Synthesis of Copper Birnessite, CuxMnOy·nH2O with Crystallite Size Control: Impact of Crystallite Size on Electrochemistry},
author = {Li, Yue Ru and Marschilok, Amy C. and Takeuchi, Esther S. and Takeuchi, Kenneth J.},
abstractNote = {This report describes the first detailed electrochemical examination of a series of copper birnessite samples under lithium-based battery conditions, allowing a structure/function analysis of the electrochemistry and related material properties. To obtain the series of copper birnessite samples, a novel synthetic approach for the preparation of copper birnessite, CuxMnOy·nH2O is reported. The copper content (x) in CuxMnOy·nH2O, 0.28 >= x >= 0.20, was inversely proportional to crystallite size, which ranged from 12 to 19 nm. The electrochemistry under lithium-based battery conditions showed that the higher copper content (x = 0.28) and small crystallite size (similar to 12 nm) sample delivered similar to 194 mAh/g, about 20% higher capacity than the low copper content (x = 0.22) and larger crystallite size (similar to 19 nm) material. In addition, CuxMnOy·nH2O displays quasi-reversible electrochemistry in magnesium based electrolytes, indicating that copper birnessite could be a candidate for future application in magnesium-ion batteries.},
doi = {10.1149/2.0501602jes},
url = {https://www.osti.gov/biblio/1437949}, journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 2,
volume = 163,
place = {United States},
year = {Tue Nov 24 00:00:00 EST 2015},
month = {Tue Nov 24 00:00:00 EST 2015}
}

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Cited by: 16 works
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