02800nas a2200277   4500008004100000245017100041210006900212260000800281300001600289490000600305520175600311653002502067653002802092653003102120653003102151653002402182653002802206653002002234100001702254700001802271700002002289700002702309700003102336700002602367856012902393       2025                        eng d00aStrategic design of a single-source precursor for in situ generation and integration of adherent species on Ni3S4 entangled-nanosheets for energy storage applications0 aStrategic design of a singlesource precursor for in situ generat  cOCT  a19943-199510 v83 a<p>
	Synthesizing transition-metal chalcogenides (TMC) via a single-source precursor (SSP) route has shown great potential due to better reproducibility and control over stoichiometry, phase, and morphology. While the SSP converts into TMC, surfactants or coordinating species are essential to ensure dispersibility for further solution-based processing protocols. These additional species are typically highly toxic, difficult to remove, and adversely affect device performance. Here, as a proof of concept, design-induced in situ stabilized Ni3S4 (DiSNi) protocol demonstrates that strategic SSP design and optimized reaction conditions can facilitate directed chemical reactivity, gradually generating adhering species, which seamlessly integrate onto the metal chalcogenides, aiding the formation of stable dispersions without utilizing additional stabilizers. The proposed mechanism is validated by detailed strategic experiments and analysis, like X-ray photoelectron spectroscopy (XPS), accelerated dispersion stability measurements, and postsynthesis base treatment, which confirm the presence of in situ generated diethylammonium ion (DEA+) as the adherent and corroborate its role in dispersibility. The obtained Ni3S4 entangled-nanosheets are utilized to fabricate additive-free symmetric supercapacitors with organic electrolyte for charge storage over an extended potential window of 2.8 V and an energy density of 12.44 mu W h cm-2 at a power density of 0.42 mW cm-2. The devised DiSNi protocol showcases the importance of the SSP design for achieving multifunctionality. It is anticipated to have a broader impact on the role of careful design of SSP, making it an ideal contender for synthesizing transition-metal chalcogenides.</p>
10adispersion stability10aenergy storages devices10alow-boiling point solvents10anickel sulfide dispersions10aorganic electrolyte10asingle-source precursor10aSupercapacitors1 aSingh, Rahul1 aThakur, Rohit1 aSahu, Umasharan1 aSahoo, Ramesh, Chandra1 aPrasad, Bhagavatula, L. V.1 aMatte, H., S. S. Rama  uhttps://library.ncl.res.in/content/strategic-design-single-source-precursor-situ-generation-and-integration-adherent-species