[en] Thanks to the inductive effect of the sulfate groups, sodium iron sulfate alluaudites display the highest electrode potential amongst the Fe-based compounds studied in sodium-ion batteries. Here, we report the synthetic strategy that has allowed us to obtain the elusive Na2Fe2(SO4)3 stoichiometric compound through a reverse-strike coprecipitation method in organic medium. We experimentally confirm the hypothesis that the stoichiometric compound transforms upon further heat treatment into the previously reported sodium-rich solid solution and an iron sulfate secondary phase. X-ray diffraction and 57Fe Mössbauer spectroscopy do not reveal any striking structure difference between the stoichiometric and Na-rich compounds, in agreement with the current understanding that the instability of the stoichiometric phase is due to the repulsion between Fe2+ ions in the Fe2O10 dimers bridged by sulfate groups. Despite less-than-optimal powder microstructure, electrochemical activity of the stoichiometric phase could be demonstrated through operando X-ray diffraction. These findings are expected to shift attention towards the (near)-stoichiometric compositions, which offer the highest theoretical specific capacities thanks to their optimal Na/Fe ratio.
Disciplines :
Chemistry
Author, co-author :
Jungers, Thomas ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Mahmoud, Abdelfattah ; Université de Liège - ULiège > Département de chimie (sciences) > LCIS - GreenMAT
Malherbe, Cédric ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie analytique inorganique
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
P. Barpanda G. Oyama S. Nishimura S.-C. Chung A. Yamada Nat. Commun. 2014 5 4358
G. Oyama H. Kiuchi S. C. Chung Y. Harada A. Yamada J. Phys. Chem. C 2016 120 23323 23328
L. Lander J.-M. Tarascon A. Yamada Chem. Rec. 2018 18 1394 1408
G. Oyama S. Nishimura Y. Suzuki M. Okubo A. Yamada ChemElectroChem 2015 2 1019 1023
P. Barpanda Isr. J. Chem. 2015 55 537 557
S.-C. Chung J. Ming L. Lander J. Lu A. Yamada J. Mater. Chem. A 2018 6 3919 3925
H. Ben Yahia R. Essehli R. Amin K. Boulahya T. Okumura I. Belharouak J. Power Sources 2018 382 144 151
S. Nishimura Y. Suzuki J. Lu S. Torii T. Kamiyama A. Yamada Chem. Mater. 2016 28 2393 2399
J. Lu A. Yamada ChemElectroChem 2016 3 902 905
R. B. Araujo S. Chakraborty P. Barpanda R. Ahuja Phys. Chem. Chem. Phys. 2016 18 9658 9665
L. L. Wong H. M. Chen S. Adams Phys. Chem. Chem. Phys. 2015 17 9186 9193
P. Barpanda Chem. Mater. 2016 28 1006 1011
F. Hatert P. Keller F. Lissner D. Antenucci A.-M. Fransolet Eur. J. Mineral. 2000 12 847 857
D. Dwibedi P. Barpanda MRS Adv. 2018 3 1209 1214
Y. Meng T. Yu S. Zhang C. Deng J. Mater. Chem. A 2016 4 1624 1631
D. Dwibedi C. D. Ling R. B. Araujo S. Chakraborty S. Duraisamy N. Munichandraiah R. Ahuja P. Barpanda ACS Appl. Mater. Interfaces 2016 8 6982 6991
G. Oyama O. Pecher K. J. Griffith S. Nishimura R. Pigliapochi C. P. Grey A. Yamada Chem. Mater. 2016 28 5321 5328
R. P. Rao H. Chen L. L. Wong S. Adams J. Mater. Chem. A 2017 5 3377 3388
A. Goñi A. Iturrondobeitia I. Gil de Muro L. Lezama T. Rojo J. Power Sources 2017 369 95 102
S. Wei B. Mortemard de Boisse G. Oyama S. Nishimura A. Yamada ChemElectroChem 2016 3 209 213
J. Lu S. Nishimura A. Yamada Chem. Mater. 2017 29 3597 3602
T. Yu B. Lin Q. Li X. Wang W. Qu S. Zhang C. Deng Phys. Chem. Chem. Phys. 2016 18 26933 26941
W. Wang X. Liu Q. Xu H. Liu Y.-G. Wang Y. Xia Y. Cao X. Ai J. Mater. Chem. A 2018 6 4354 4364
D. Dwibedi S. Baskar P. Barpanda ECS Trans. 2017 80 337 342
P. Barpanda L. Lander S. Nishimura A. Yamada Adv. Energy Mater. 2018 8 1703055
A. Seidell, Solubilities of inorganic and organic compounds; a compilation of quantitative solubility data from the periodical literature, New York, Van Nostrand, 1919
M. Shishkin H. Sato J. Phys. Chem. C 2017 121 20067 20074
J. Rodríguez-Carvajal Phys. B 1993 192 55 69
CRC handbook of chemistry and physics: a ready-reference book of chemical and physical data, ed., D. R. Lide, CRC, Boca Raton, Fla, London, 88th edn, 2008
L. Gmelin and R. J. Meyer, Natrium: Lieferung 3, Verlag Chemie., Berlin, 1966
L. Gmelin and R. J. Meyer, Eisen: Teil B-die Verbindungen des Eisens, Verlag Chemie., Berlin, 1932
A. L. Mills F. A. Smith Industrial & Engineering Chemistry Chemical & Engineering Data Series 1957 2 30 31
Glycerine Producers' Association, Physical Properties of Glycerine and Its Solutions, Glycerine Producers' Association, 1963
F. K. Cameron J. Phys. Chem. 1929 34 692 710
A. Milani M. Tommasini V. Russo A. L. Bassi A. Lucotti F. Cataldo C. S. Casari Beilstein J. Nanotechnol. 2015 6 480 491
M. Chen D. Cortie Z. Hu H. Jin S. Wang Q. Gu W. Hua E. Wang W. Lai L. Chen S.-L. Chou X.-L. Wang S.-X. Dou Adv. Energy Mater. 2018 8 1800944
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.