000			02113nam a2200253Ia 4500
003			MX-MdCICY
005			20250625162502.0
040			_cCICY
090			_aB-21148
245	1	0	_aSodium alginate-based gel electrodes without binder for high-performance supercapacitors
490	0		_vInternational Journal of Biological Macromolecules, 234, p.123699, 2023
520	3		_aBinder use results in an expansion of the dead volume of the active material and a decline in the active sites, which will lead to a decrease in the electrochemical activity of the electrode. Therefore, the construction of electrode materials without the binder has been the research focus. Here, a novel ternary composite gel electrode without the binder (reduced graphene oxide/sodium alginate/copper cobalt sulfide, rGSC)were designed using a convenient hydrothermal method. Benefiting from the dual-network structure of rGS via the hydrogen bonding between rGO and sodium alginate not only better encapsulates CuCo2S4 with high pseudo-capacitance, but also simplifies the electron transfer path, and reduces the electron transfer resistance, which leads to a remarkable enhanced electrochemical performance. The rGSC electrode exhibits a specific capacitance of up to 1600.25 F g-1 when the scan rate is 10 mV s-1. The asymmetric supercapacitor was constructed with rGSC and activated carbon as the positive and negative electrode in a 6 M KOH electrolyte. It has a large specific capacitance and high energy/power density (10.7 Wh kg-1/1329.1 W kg-1). This work proposes a promising strategy for designing gel electrodes for higher energy density and larger capacitance without the binder.
650	1	4	_aBINDER-FREE
650	1	4	_aSODIUM ALGINATE
650	1	4	_aSUPERCAPACITOR
700	1	2	_aJing, S.
700	1	2	_aSun, Z.
700	1	2	_aQu, K.
700	1	2	_aShi, C.
700	1	2	_aHuang, Z.
856	4	0	_uhttps://drive.google.com/open?id=1O9eC732-YTj1X8LjGKxmHDo8q_yNBV44&usp=drive_copy _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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