Cu/Cu2O nanostructures derived from copper oxalate as high performance electrocatalyst for glucose oxidation

Yuan, Guangyin; Yu, Shangkui; Ji, Jie; Wang, Chen; Li, Qing; Pang, Huan

doi:10.1016/j.cclet.2019.12.034

Cited by 51 publications

(17 citation statements)

References 26 publications

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“…They are very stable during the charge/discharge (CD) process but suffer relatively low specific capacitance. The other family is electrochemical capacitor, which store energy via Faradaic redox reaction at electrode surface, such as NiO [10], Co3O4 [11,12], MnO2 [13-15], NiCo2O4 [16][17][18], NiCoS [19][20][21][22][23] and metalorganic frameworks (MOFs) [24,25], these electroactive materials possess high theoretical capacitance, whereas they lack of mechanical properties and electrical conductivity.Metal selenides have received considerable attention due to its enormous applications in the fields of optics, photocatalysis, and sensor [26][27][28][29]. Compared with the metal oxides, transition metal selenides exhibit much enhanced electrical conductivity due to the anion exchange providing smaller bandgap [30].…”

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Synthesis of nickel selenide thin films for high performance all-solid-state asymmetric supercapacitors

Gong

et al. 2020

Chinese Chemical Letters

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Supercapacitors (SCs) have attracted considerable attention because they possess fast dynamic response, excellent charge-discharge efficiency and superior cycling stability. In addition, SCs can also provide instantaneously a higher power density than batteries and higher energy density than conventional dielectric capacitors [1,2]. Therefore, SCs were widely used in portable electronics, power back-up, electrical vehicles and other electronic devices for the purpose of power enhancement. In recent years, the studies of energy storage devices were concentrated on all-solid-state (ASS) asymmetric SCs, because they are safer with no risk of the leakage of electrolyte [3,4]. Moreover, the asymmetric design can widen the operation voltage window and further improve the energy density of the devices.Electrode active materials are key component to fabricate high performances SCs. Generally, the active materials can be divided into two types based on different electron storage mechanisms: One family, traditional electrical double layered capacitors (EDLCs), such as active carbon (AC) [5], carbon nanotubes (CNT) [6,7], graphene or doped graphene [8,9], which store energy by accumulation of charges in the electrical double layer near the electrode/electrolyte interface. They are very stable during the charge/discharge (CD) process but suffer relatively low specific capacitance. The other family is electrochemical capacitor, which store energy via Faradaic redox reaction at electrode surface, such as NiO [10], Co3O4 [11,12], MnO2 [13-15], NiCo2O4 [16][17][18], NiCoS [19][20][21][22][23] and metalorganic frameworks (MOFs) [24,25], these electroactive materials possess high theoretical capacitance, whereas they lack of mechanical properties and electrical conductivity.Metal selenides have received considerable attention due to its enormous applications in the fields of optics, photocatalysis, and sensor [26][27][28][29]. Compared with the metal oxides, transition metal selenides exhibit much enhanced electrical conductivity due to the anion exchange providing smaller bandgap [30]. In addition, the substitution of oxygen with selenium could create more flexible structure because the electronegativity of selenide is lower than that of oxide. Some metal selenides, such as hierarchical GeSe

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Synthesis of nickel selenide thin films for high performance all-solid-state asymmetric supercapacitors

Gong

et al. 2020

Chinese Chemical Letters

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“…Subsequently, Wang et al employed VOOH in aqueous ZIBs. [139] During the cycling process, VOOH hollow clusters undergo phase deformation in 3 m Zn(CF 3 O battery displays a high specific capacity and a long cycle stability. In most reports, the dissolution of vanadium in the electrolyte and the formation of by-products is inevitable.…”

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confidence: 99%

“…The deterioration of the environment and the shortage of fossil energy are currently increasing public awareness of the importance of developing sanitary and sustainable energy resources and economical production methods. [1][2][3][4][5][6] Renewable energy power generation, such as solar cell, wind power generation, tidal power generation, can meet people's requirements for environmental protection and sustainable energy storage/release mechanism of ZIBs resembles that of traditional LIBs, which mainly consists of inserting/ extracting Zn 2+ into/from matrix materials. In addition, the mechanisms of Zn 2+ /H + co-insertion/extraction and anion redox reaction are also included.…”

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confidence: 99%

“…The deterioration of the environment and the shortage of fossil energy are currently increasing public awareness of the importance of developing sanitary and sustainable energy resources and economical production methods. [ 1–6 ] Renewable energy power generation, such as solar cell, wind power generation, tidal power generation, can meet people's requirements for environmental protection and sustainable development, but these energy sources have geographical limitations and instability, so it is difficult to achieve a wide range of applications. As an important part of sustainable energy development, electrochemical energy storage has become an area of active research in recent decades.…”

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Vanadium‐Based Materials as Positive Electrode for Aqueous Zinc‐Ion Batteries

Fan

Xue

et al. 2020

Advanced Sustainable Systems

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development, but these energy sources have geographical limitations and instability, so it is difficult to achieve a wide range of applications. As an important part of sustainable energy development, electrochemical energy storage has become an area of active research in recent decades. [7-10] In the current energy market, lithium ion batteries (LIBs) are dominant in the automobile, medical equipment, and portable wearable device industries, among others, which can be attributed to their outstanding energy density and environmental protection performance. [11,12] However, the use of organic solvent-based electrolytes may raise safety issues and increase costs. [13-19] Therefore, the creation of an efficient battery system is very important. Compared with nonaqueous batteries, aqueous rechargeable batteries have the characteristics of low cost, nontoxicity, and incombustibility, and are more economically competitive than lithium technology in terms of largescale deployment. [20-22] Therefore, the most important task at present is to develop an ideal battery device with low cost, acceptable safety, long cycle performance, and environmental friendliness as a substitute for LIBs. [23-25] For the past few years, ion batteries with polyvalent metals as the negative electrodes have attracted much attention. Polyvalent cations (Zn 2+ , Mg 2+ , Al 3+) transfer twice or even three times as many electrons into the main material as monovalent cations (Li + , Na +), and each polyvalent positive ion can be inserted into the main compound. [26-32] Theoretically, the capacity of the host material depends on the number of transferred electrons coexisting with the intercalated ions, such that multivalent positive ions have higher weight capacity and energy density. [33] Notably, the element zinc (Zn) has become a common choice for a negative electrode material, owing to its ample sources, low price, low redox potential (−0.76 V vs standard hydrogen electrode), and high surface capacity. [34,35] The mixture of aqueous solution and/or aqueous solution and organic-based electrolyte has emerged as a new research field. Therefore, aqueous zinc ion batteries (ZIBs) have been widely considered for their advantages of high safety, low price, ecological friendliness, and high theoretical capacity. [36] Typically, aqueous ZIBs consist of a Zn metal negative electrode, an aqueous electrolyte that accounts for a majority of the battery material, and a positive electrode containing Zn 2+ ions. [37] A survey has revealed that the conventional With the increasing dependence on high power equipment, there is an urgent need to develop advanced and sustainable energy systems. As one of the main energy storage devices, battery research should make great efforts to implement the sustainable development strategies on ecological, clean and environmentally friendly energy. Currently, aqueous zinc ion batteries (ZIBs) have gained much attention owing to their cheapness, abundant resources, high safety, and ecological friendliness. Nevertheless, ZIBs als...

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Electrochemical Synthesis of Shape‐controlled Cu−Ni Nanocomposite and its Application for Nonenzymatic Glucose Sensing at Nanomolar Level

et al. 2022

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The electrodeposition method was firstly applied to obtain uniform cube‐shaped copper nanoparticles on conductive glass (ITO), and then a layer of tiny nickel nanoparticles. A bimetallic composite electrode (Cu−Ni/ITO), characterized by TEM, XPS and XRD, was prepared to construct the non‐enzyme electrochemical glucose sensor with high catalytic activity. The catalytic performance of Cu−Ni/ITO had been greatly improved, probably due to the synergistic bimetallic catalysis effect. The electrode had a satisfactory linear response in the range of 2.5×10−7 M to 2.6×10−3 M, with detection limit as low as 67 nM. Besides, Cu−Ni/ITO had good anti‐interference ability and reproducibility, indicating the promising application for glucose detection in practical samples.

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Cu/Cu2O nanostructures derived from copper oxalate as high performance electrocatalyst for glucose oxidation

Cited by 51 publications

References 26 publications

Synthesis of nickel selenide thin films for high performance all-solid-state asymmetric supercapacitors

Synthesis of nickel selenide thin films for high performance all-solid-state asymmetric supercapacitors

Vanadium‐Based Materials as Positive Electrode for Aqueous Zinc‐Ion Batteries

Electrochemical Synthesis of Shape‐controlled Cu−Ni Nanocomposite and its Application for Nonenzymatic Glucose Sensing at Nanomolar Level

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