Controllable growth of graphdiyne layered nanosheets for high-performance water oxidation

Zhao, Shuya; Xue, Yurui; Wang, Zhongqiang; Zheng, Zhiqiang; Luan, Xiaoyu; Gao, Yaqi; Li, Yuliang

doi:10.1039/d1qm00132a

Cited by 21 publications

(19 citation statements)

References 43 publications

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“…Meanwhile, low conductivities, large overpotential, and low stability of TM-LDHs can be improved. [137][138][139][140][141][142] For example, a CeNi-LDH formed on the nickel foam (NF) has been decorated with a GDY material (Ce x-Ni x LDH@GDY) using the HEB precursor. The molar ratio of cerium to nickel affected the morphology, electronic structure, and catalytic activity of this composite.…”

Section: Composites Of Gdy and Transitional Metal Layered Double Hydr...mentioning

confidence: 99%

“…[146,147] Meanwhile, the unique porous structure of a GDY material strongly adsorbs and embeds metal nanoparticles. [137][138][139][140][141][142][143][144][145][146][147][148][149][150] For example, a GDY layer has been used as a substrate to load single-crystal Au nanostructures. Through varying reaction time and the concentration of single-stranded DNA (ss DNA) solutions, the composites of Au nanoparticles and GDY materials with different morphologies have been prepared.…”

Section: Composites Of Gdy and Metal Nanoparticlesmentioning

confidence: 99%

“…A Ce 0.6 Ni 0.4 LDH@GDY composite displayed an effectively adjusted electronic structure and an increased surface area, a promoted charge transfer rate, leading to greatly improved performance of electrocatalytic oxygen evolution reaction (OER) (Figure 9C). [ 138 ] In another report, metal cations were anchored to a 3D GDY, leading to the formation of a composite of NiFe‐LDH nanodots and GDY (NiFe ND/GDY). The size of this heterogeneous structure was only 2.7 nm.…”

Section: Synthesis Of Gdy Materials and Their Compositesmentioning

confidence: 99%

“…For example, a Ce 0.6 Ni 0.4 ‐LDH@GDY electrocatalyst exhibited low overpotential, a small Tafel slope and high stability in 1.0 m KOH toward the OER. [ 138 ] Such improved OER performance resulted from more active sites on this catalyst since uneven surface charge distribution was expected on the rich acetylene bonds of the GDY. Moreover, a high conductivity of a GDY material promoted charge transfer and improved the catalytic reaction kinetics of the OER.…”

Section: Electrochemical Applications Of Gdy Materials and Their Comp...mentioning

confidence: 99%

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confidence: 99%

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Graphdiyne Electrochemistry: Progress and Perspectives

Chen

Jiang

Yang

2022

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Graphdiyne, a carbon allotrope, was synthesized in 2010 for the first time. It consists of two acetylene bonds between adjacent benzene rings. Graphdiyne and its composites thus exhibit ultrahigh intrinsic electrochemical activities. As “star” electrode materials, they have been utilized for various electrochemical applications. With the aim of giving a full screen of graphdiyne electrochemistry, this review starts from the history of graphdiyne materials, followed by their structural and electrochemical features. Recent progress and achievements in the synthesis of graphdiyne materials and their composites are overviewed. Subsequently, various electrochemical applications of graphdiyne materials and their composites are summarized, covering those in the fields of electrochemical energy conversion, electrochemical energy storage, and electrochemical sensing. The perspectives of graphdiyne electrochemistry are also discussed and outlined.

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Section: Composites Of Gdy and Transitional Metal Layered Double Hydr...mentioning

confidence: 99%

Section: Composites Of Gdy and Metal Nanoparticlesmentioning

confidence: 99%

Section: Synthesis Of Gdy Materials and Their Compositesmentioning

confidence: 99%

Section: Electrochemical Applications Of Gdy Materials and Their Comp...mentioning

confidence: 99%

mentioning

confidence: 99%

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Graphdiyne Electrochemistry: Progress and Perspectives

Chen

Jiang

Yang

2022

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2D Graphdiyne: A Rising Star on the Horizon of Energy Conversion

Wang

Lü

Zheng

et al. 2021

Chemistry An Asian Journal

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Two-dimensional (2D) graphdiyne (GDY), a rapidly rising star on the horizon of carbon materials, is a new carbon allotrope featuring sp-and sp 2 -cohybridized carbon atoms and 2D one-atom-thick network. Since the first successful synthesis of GDY by Professor Li's group in 2010, GDY has attached great interests from both scientific and industrial viewpoints based on its unique structure and physicochemical properties, which provides a fertile ground for applications in various fields including electrocatalysis, energy conversion, energy storage and optoelectronic devices. In this work, various potential properties of the GDY-based electrocatalysts and their recent advances in energy conversion are reviewed, including atomic catalysts, heterogeneous catalysts, and metal-free catalysts. The critical role of GDY in improving catalytic activity and stability is analyzed. The perspectives of the challenges and opportunities faced by GDY-based materials for energy conversion are also outlined.

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Diffusion Kinetics Study of Lithium Ion in the Graphdiyne Based Electrode

Zhang

Liu

Bai

et al. 2021

Chem. Res. Chin. Univ.

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erein, we report a comparative investigation of the electrochemical lithium diffusion within graphidyne(GDY) based electrodes. The transfer kinetic behaviors of lithium ions during the insertion/extraction process are analyzed through different methods including the galvanostatic intermittent titration technique(GITT) and the electrochemical impedance spectroscopy (EIS). GDY with the morphology of nanosheets(GDY NS) shows lithium diffusion coefficients in the orders range of 10 −12 -10 −13 cm 2 /s through the GITT method. Meanwhile, EIS indicates quite a lower value of lithium diffusion coefficients between 10 −13 and 10 −15 cm 2 /s, which indicates that the analysis technique has an influence on the evaluation of GDY-based electrodes. In addition, under the same measurement condition of GITT, GDY nanoparticles(GDY NP) exhibit a lower value of Li + diffusion coefficient(10 -14 -10 -16 cm 2 /s) during the charge-discharge process compared to those of GDY NS, which can be ascribed to the wide distributing range of particle size in GDY NP based electrodes. The analysis results in this work reveal that the aggregating forms of GDY electrode material have an important effect on the diffusion process of lithium ions, which provides a pathway to optimize the performance of GDY-based energy storage devices.

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Controllable growth of graphdiyne layered nanosheets for high-performance water oxidation

Abstract: Developing highly active, stable and low-cost electrocatalysts capable of efficient oxygen evolution reaction (OER) is urgent and challenging. Here we report a facile and general strategy for synthesizing the noble-metal-free...

Cited by 21 publications

References 43 publications

Graphdiyne Electrochemistry: Progress and Perspectives

Graphdiyne Electrochemistry: Progress and Perspectives

2D Graphdiyne: A Rising Star on the Horizon of Energy Conversion

Diffusion Kinetics Study of Lithium Ion in the Graphdiyne Based Electrode

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