Electric field polarized sulfonated carbon dots/NiFe layerd double hydroxide as highly efficient electrocatalyst for oxygen evolution reaction

Carbon dots (CDs), an emerging category of carbon nanomaterials, have bright destiny in a vast diversity of engineering areas due to their great variety in design, arrangement, and characteristics. Their possible implementations have recently traversed from electrochemical energy storage (EES), fluorescent probing, and catalysis, particularly as materials into the critical elements of the electrochemical system. Herein, the current investigation based upon the preface of CDs in batteries, supercapacitors, hydrogen/oxygen evolution reaction, oxygen reduction reaction, electromagnetic interference shielding, and solar‐assisted energy generation used as electrode materials integrated with an active substance as an auxiliary mechanism is shown. Different aspects conferred upon selected illustrations outline the electrochemical activity, and eventually, current issues and future viewpoints are recollected toward the following optimization method of electrode substances. This review article is anticipated to demand broad attention within active CD materials and encourage the growth of high‐performance EES systems.

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“…The better catalytic performance was primarily ascribable toward NiFe LDH, while the accumulation of SO 3 ‐CDs improved OER performance. [ 101 ]…”

Section: Electrochemical Energy Storage Applications Toward Environme...mentioning

confidence: 99%

mentioning

confidence: 99%

Recent Progress in Carbon Dots‐Based Materials for Electrochemical Energy Storage Toward Environmental Sustainability

Siwal

Kaur

Saini

et al. 2022

Adv Energy and Sustain Res

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“…DFT calculations show that the SO 3 functional groups on the surface of CDs can effectively capture protons, adjust the adsorption energy of intermediates, and reduce the OER overpotential (Figure 4c). [155] MnO 2 is previously reported to have a high OER catalytic activity and relatively low cost. [156] Du et al showed that the prepared CQDs-MnO 2 can be used as an efficient OER electrocatalyst.…”

Section: Transition Metal Compounds/cdsmentioning

confidence: 99%

Computational Studies on Carbon Dots Electrocatalysis: A Review

Song

Xue

et al. 2021

Adv Funct Materials

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Electrocatalytic reactions possess wide application prospects in solving the energy crisis. Recently, the emerging 0D carbon dots (CDs) have become potential candidate materials due to their low cost, high conductivity, easy modification, and simple synthesis. CDs-based composite materials showcase attractive electrocatalytic performances because of the abundant active sites and charge distribution on the material surface. Considering the complicated structure of CDs, it's important to identify the specific catalytic activity source and understand catalytic mechanisms with the aid of theoretical method. In this review, the latest advancements are presented on improving the electrocatalytic activity and stability of CDs-based composite materials from theoretical perspective. Meanwhile, the opportunity and challenges about developing high-performance CDs catalysts are also highlighted.

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“…On the one hand, because the active sites of Bulk LDH are not fully exposed. [12] To solve this problem, liquid-exfoliation [13] and dry-exfoliation [10] of Bulk LDH have been systematically developed to expose more active sits. On the other hand, LDH has a low electron transfer efficiency in catalytic process.…”

mentioning

confidence: 99%

“…On the other hand, LDH has a low electron transfer efficiency in catalytic process. Combining LDH with conductive materials is a very effective way to improve the conductivity of LDH, such as carbon nanotubes (CNT), [14] graphene, [13,15] carbon quantum dots, [12] and other alkali corrosion-resistant carbon materials. [16] Over the past few years, researchers have also prepared various catalysts for CO 2 RR, such as non-metal elements (e. g., N, P, and S) doped carbon materials, [17] metal alloys, [18] and mental anchored on N doped carbon support (M-N-C).…”

mentioning

confidence: 99%

High‐Temperature Nitridation Induced Carbon Nanotubes@NiFe‐Layered‐Double‐Hydroxide Nanosheets Taking as an Oxygen Evolution Reaction Electrocatalyst for CO₂ Electroreduction

Chen

Zhang

Xie

et al. 2021

Adv Materials Inter

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The electrochemical converting CO 2 into valuable fuels or chemicals and water splitting to produce hydrogen have become effective strategies to solve the energy crisis. [2] However, both the oxygen evolution reaction (OER) of water splitting to produce hydrogen and the cathode of electrochemical carbon dioxide reduction reaction (CO 2 RR) are multielectron transfer processes, which face a high reaction energy barrier. [3] Thus, it is necessary to develop a highly efficient catalyst to reduce the overpotential of OER and improve the activity and selectivity of CO 2 RR. [4] Currently, most of the catalysts for OER and CO 2 RR are noble metal-based catalysts, such as RuO 2 (for OER) and Au (for CO 2 RR). [5] However, noble metals have a low storage capacity on earth and high cost, so their widespread use on scale-up deployment is severely restricted. [6] Now it is critical to design low-cost and earth-abundant catalysts to replace the noble metal-based electrocatalysts. [7] Recently, layered double hydroxides (LDH) as one of the non-noble metals have been found as efficient OER catalysts because of their unique 2D lamellar structures. [8] For example, NiFe-LDH, [9] CoFe-LDH, [10] and NiV-LDH [11] are well-proven as excellent OER electrocatalysts under alkaline conditions. Unfortunately, the widespread application of LDH in OER is still unsatisfactory, mainly caused by the following two reasons. On the one hand, because the active sites of Bulk LDH are not fully exposed. [12] To solve this problem, liquid-exfoliation [13] and dry-exfoliation [10] of Bulk LDH have been systematically developed to expose more active sits. On the other hand, LDH has a low electron transfer efficiency in catalytic process. Combining LDH with conductive materials is a very effective way to improve the conductivity of LDH, such as carbon nanotubes (CNT), [14] graphene, [13,15] carbon quantum dots, [12] and other alkali corrosion-resistant carbon materials. [16] Over the past few years, researchers have also prepared various catalysts for CO 2 RR, such as non-metal elements (e. g., N, P, and S) doped carbon materials, [17] metal alloys, [18] and mental anchored on N doped carbon support (M-N-C). [19] Among them, the M-N-C has sparked considerable interest as CO 2 RR electrocatalysts,

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Electric field polarized sulfonated carbon dots/NiFe layerd double hydroxide as highly efficient electrocatalyst for oxygen evolution reaction

Cited by 27 publications

References 47 publications

Recent Progress in Carbon Dots‐Based Materials for Electrochemical Energy Storage Toward Environmental Sustainability

Recent Progress in Carbon Dots‐Based Materials for Electrochemical Energy Storage Toward Environmental Sustainability

Computational Studies on Carbon Dots Electrocatalysis: A Review

High‐Temperature Nitridation Induced Carbon Nanotubes@NiFe‐Layered‐Double‐Hydroxide Nanosheets Taking as an Oxygen Evolution Reaction Electrocatalyst for CO₂ Electroreduction

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Electric field polarized sulfonated carbon dots/NiFe layerd double hydroxide as highly efficient electrocatalyst for oxygen evolution reaction

Cited by 27 publications

References 47 publications

Recent Progress in Carbon Dots‐Based Materials for Electrochemical Energy Storage Toward Environmental Sustainability

Recent Progress in Carbon Dots‐Based Materials for Electrochemical Energy Storage Toward Environmental Sustainability

Computational Studies on Carbon Dots Electrocatalysis: A Review

High‐Temperature Nitridation Induced Carbon Nanotubes@NiFe‐Layered‐Double‐Hydroxide Nanosheets Taking as an Oxygen Evolution Reaction Electrocatalyst for CO2 Electroreduction

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High‐Temperature Nitridation Induced Carbon Nanotubes@NiFe‐Layered‐Double‐Hydroxide Nanosheets Taking as an Oxygen Evolution Reaction Electrocatalyst for CO₂ Electroreduction