@article {46664,
	title = {Scalable synthesis of manganese-doped hydrated vanadium oxide as a cathode material for aqueous zinc-metal battery},
	journal = {ACS Applied Materials \& Interfaces},
	volume = {12},
	year = {2020},
	month = {OCT },
	pages = {48542-48552},
	type = {Article},
	abstract = {<p>Rechargeable aqueous zinc-metal batteries (ZMBs) are considered as potential energy storage devices for stationary applications. Despite the significant developments in recent years, the performance of ZMBs is still limited due to the lack of advanced cathode materials delivering high capacity and long cycle life. In this work, we report a low-temperature and scalable synthesis method following a surfactant-assisted route for preparing manganese-doped hydrated vanadium oxide (MnHVO-30) and its application as the cathode material for ZMB. The as-prepared material possesses a porous architecture and expanded interlayer spacing. Therefore, the MnHVO-30 cathode offers fast and reversible insertion of Zn2+ ions during the charge/discharge process and delivers 341 mAh g(-1) capacity at 0.1 A g(-1). Moreover, the MnHVO-30 parallel to Zn cell retains 82\% of its initial capacity over 1200 stability cycles, which is higher compared to that of the undoped system. Besides, a quasi-solid-state home-made pouch cell with an area of 3.3 x 1.6 cm(2) and 3.6 mg cm(-2) loading is assembled, achieving 115 mAh g(-1) capacity over 100 stability cycles. Therefore, this work provides an easy and attractive way for preparing efficient cathode materials for aqueous ZMBs.</p>
},
	keywords = {anionic surfactant, hydrated vanadium pentoxide, Nafion ionomer membrane, post-lithium battery, quasi-solid-state battery},
	issn = {1944-8244},
	doi = {10.1021/acsami.0c13221},
	author = {Ghosh, Meena and Dilwale, Swati and Vijayakumar, Vidyanand and Kurungot, Sreekumar}
}
@article {47603,
	title = {Sulfonated polyvinyl alcohol ionomer membrane favoring smooth electrodeposition of zinc for aqueous rechargeable zinc metal batteries},
	journal = {Sustainable Energy \& Fuels},
	volume = {5},
	year = {2021},
	month = {OCT},
	pages = {5557-5564},
	type = {Article},
	abstract = {One of the failure mechanisms of aqueous rechargeable zinc metal batteries (AZMBs) involves high surface area zinc (HSAZ)/dendrite-like deposits over the Zn-metal anode during long-term cycling. Negatively charged (anionic) polymeric ionomer electrolyte membranes and separators are known for suppressing the dendrite-/HSAZ-induced failure of AZMBs. However, the preparation of cost-effective and non-fluorinated ionomers from cheap and environmentally friendly polymers is essential to leverage the feasibility of AZMBs. The current work demonstrates the potential of an ionomer electrolyte membrane (P-AS-C-Zn) made by the crystallization-induced physical cross-linking of sulfonated poly (vinyl alcohol) (PVS) and poly (vinyl alcohol) (PVA) as a dendrite-/HSAZ-inhibiting separator for AZMBs. The P-AS-C-Zn membranes exhibited excellent Zn plating/stripping behavior with a stable voltage vs. time profile beyond 1100 h, compared to their neutral PVA-C-Zn counterpart without any ionomer character (cell failure at close to 280 h). Applying the optimized P-AS-C-Zn membrane in a MnO2||Zn full cell helps retain about 50\% of the initial capacity close to 600 cycles in the absence of extra manganese salt in the electrolyte, which is indeed promising.},
	issn = {2398-4902},
	doi = {10.1039/d1se00865j},
	author = {Vijayakumar, Vidyanand and Torris, Arun and Kurian, Maria and Mathew, Megha Mary and Ghosh, Meena and Khairnar, Ajay B. and Badiger, Manohar V. and Kurungot, Sreekumar}
}
@article {48232,
	title = {Single-step synthesis of exfoliated Ti3C2Tx MXene through NaBF4/HCl etching as electrode material for asymmetric supercapacitor},
	journal = {ChemistrySelect},
	volume = {7},
	year = {2022},
	month = {MAY},
	pages = {e202201166},
	type = {Article},
	abstract = {<p>
	Two-dimensional Ti3C2Tx MXene, derived from the parent Ti3AlC2 phase, is considered a promising electrode material for electrochemical energy storage applications. Ti3C2Tx MXene synthesis methods often employ concentrated hydrofluoric acid (HF), which is harsh, corrosive, and hazardous to the environment. Herein, we report the preparation of Ti3C2Tx MXene following a new synthetic route under a mild reaction condition comprising an aqueous solution of NaBF4 and HCl. This etching environment at a moderate temperature of 130 degrees C effectively removes the Al layer of the Ti3AlC2 precursor, assisted by the in situ formed HF in the reaction medium. Electron microscopy images of the as-prepared Ti3C2Tx (MX-130) reveal a partially exfoliated nanosheet-like morphology. The material displays a specific capacitance of 262 F g(-1) (three-electrode assembly, 1 A g(-1), -0.85 to -0.25 V vs. Hg/Hg2SO4) in 1 M H2SO4 electrolyte. The achieved specific capacitance is superior to that of Ti3C2Tx prepared via the common HF-treatment (25 F g(-1)). Additionally, the potential application of the optimized MXene as a negative electrode material is demonstrated in a quasi-solid-state RuO2|MX-130 asymmetric supercapacitor device.</p>
},
	keywords = {asymmetric supercapacitor, Electrochemistry, Fluoride salt etchant, Layered electrode materials, Transition metal carbides},
	issn = {2365-6549},
	doi = {10.1002/slct.202201166},
	author = {Ghosh, Meena and Szunerits, Sabine and Cao, Ning and Kurungot, Sreekumar and Boukherroub, Rabah}
}
