Constructing all-in-one graphene-based supercapacitors for electrochemical energy storage via interface integration strategy

Zhu, Yucan; Peng, Long; Chen, Song; Feng, Yu‐Long; Xia, Jianxing; Wang, Wei; Chen, Liang; Li, Huaiyu; Zhou, Minjie; Hou, Zhaohui

doi:10.1007/s42823-023-00467-6

Cited by 8 publications

(1 citation statement)

References 45 publications

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“…At a low concentration of Fe(aq) (0.1 mg/L), characteristic absorption peaks of aldehydic substances were observed at 2815 and 2803 cm −1 , caused by the stretching vibrations of the C-H bonds. The absorption peaks at 1632 and 1346 cm −1 were attributed to the stretching vibrations of C=O and bending vibrations of -OH, respectively, which was indicative of the presence of a small amount of water molecules [34]. Hence, Fe (hydro) oxides were nearly undetectable on the surface of river sand under a low-Fe(aq) condition (Fe(aq) = 0.1 mg/L), indicating an exceedingly low content of Fe (hydro)oxides.…”

Section: Changes In the Main Crystalline Phases And Functional Groups...mentioning

confidence: 99%

The Influence of Aqueous Iron on River Sand’s Arsenic Adsorption: Characteristics and Mechanisms

Li,

Peng,

Shan

et al. 2024

Water

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Iron-containing minerals are key factors controlling arsenic (As) transport in groundwater environments. However, few studies have observed the effect of aqueous Fe [Fe(aq)] on As behavior in a water environment. In this study, river sand in the riparian zone was collected for batch experiments to analyze the effect of Fe(aq) on the adsorption of As on river sand, utilizing characterization analyses to identify the reaction mechanism. The results showed that (1) as the concentration of Fe(aq) in the reaction system increased from 0.1 to 20 mg/L, the equilibrium adsorption capacity (Qe) of river sand for As(III) and As(V) gradually increased. For concentrations of Fe(aq) equal to or greater than 1 mg/L, the Qe for As(V) exceeds that for As(III), whereas at a Fe(aq) concentration of 0.1 mg/L, the Qe for As(III) is higher than that for As(V). (2) Compared to the reaction system without added Fe(aq), the adsorption of As(V) onto river sand was inhibited, while the adsorption of As(III) was enhanced under conditions with low concentrations (0.1, 1 mg/L) of Fe(aq). (3) At higher Fe(aq) concentrations (5, 20 mg/L), the adsorption of both As(V) and As(III) by river sand was more effective than in systems without Fe(aq). Characterization tests confirmed this, while Fe(II) reduced As(V), and Fe(aq) adhered to the surface of river sand to form Fe(OH)3 colloids, thereby facilitating the adsorption of As onto river sand.

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Section: Changes In the Main Crystalline Phases And Functional Groups...mentioning

confidence: 99%

The Influence of Aqueous Iron on River Sand’s Arsenic Adsorption: Characteristics and Mechanisms

Li,

Peng,

Shan

et al. 2024

Water

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Laminating Layered Structures of 2D MXene and Graphene Oxide for High‐Performance All‐Solid‐State Supercapacitors

Wei,

Zhang,

Wei

et al. 2024

Small

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Graphene oxide (GO)‐based all‐solid‐state supercapacitors (SCs) provide an important complement to liquid‐ and gel‐electrolyte‐based SCs in a variety of applications, including flexible electronics. Still, their mediocre capacitance and complex fabrication methods hold back the realization of their full potential. Here, a simple fabrication of all‐solid‐state SCs with layered GO as a solid electrolyte and MXene as electrodes is demonstrated. The resultant SCs show excellent energy storage capacitance comparable to other MXene‐based SCs using liquid electrolytes. The outperformance is attributed to extra interlayer spacing expansion and improved ion transport kinetics thanks to a synergistic water‐absorbing effect due to the hydrophilicity of both MXene and GO in combination, which interestingly satisfies the intrinsic surface‐dominated pseudocapacitive behavior of MXene. The application of this SC in humidity sensing has also been demonstrated to be fast responsive. The findings describe in this work provide a means of improving the capacitance performance using GO as a solid electrolyte with MXene as the electrodes and exploit the potential application as electronic elements for smart devices.

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Co2+-coordination-assisted enhancement of mechanical and iodynamic properties of 3D graphene-based double network hydrogels for all-solid-state supercapacitors

He,

Wen,

Wen

et al. 2023

Carbon Lett.

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Constructing all-in-one graphene-based supercapacitors for electrochemical energy storage via interface integration strategy

Cited by 8 publications

References 45 publications

The Influence of Aqueous Iron on River Sand’s Arsenic Adsorption: Characteristics and Mechanisms

The Influence of Aqueous Iron on River Sand’s Arsenic Adsorption: Characteristics and Mechanisms

Laminating Layered Structures of 2D MXene and Graphene Oxide for High‐Performance All‐Solid‐State Supercapacitors

Co2+-coordination-assisted enhancement of mechanical and iodynamic properties of 3D graphene-based double network hydrogels for all-solid-state supercapacitors

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