Intercalating assembly of NiFe LDH nanosheets/CNTs composite as high-performance electrocatalyst for oxygen evolution reaction

Duan, Mengting; Qiu, Mingjun; Sun, Shangqing; Guo, Xingmei; Liu, Yuanjun; Zheng, Xiangjun; Cao, Fu; Kong, Qinghong; Zhang, Junhao

doi:10.1016/j.clay.2021.106360

Cited by 32 publications

(19 citation statements)

References 62 publications

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“…Recently, transition metal-based nanomaterials for electrochemical sensing have been widely studied, including transition metals and their oxides, hydroxides, phosphides, sulfides, and nitrides . Transition metal layered double hydroxides (LDHs), composed of positively charged hydrotalcite-like layers and interlamellar anions, have been widely used in the fields of electrocatalysis, photochemistry, and drug delivery, taking advantage of the large specific capacity, adjustable composition, large specific surface area, and environmental friendliness. For instance, Rajesh et al built nanosheet-like NiCo LDH grown on silver nanowires with the g-C 3 N 4 nanostructured electrocatalyst for high-performance super capacitors .…”

Section: Introductionmentioning

confidence: 99%

Hierarchical NiMn Layered Double Hydroxide Nanostructures on Carbon Cloth for Electrochemical Detection of Hydrogen Peroxide

Wang

Zhang

et al. 2022

ACS Appl. Nano Mater.

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Transition metal layered double hydroxide (LDH) nanomaterials have gained wide attention in the fields of supercapacitors, photocatalysis, and electrocatalysis due to their large specific surface area and eminent catalytic performance. In this work, hierarchical NiMn LDH nanosheet arrays were synthesized on flexible carbon cloth (CC) through a one-step hydrothermal reaction as a self-supporting electrode. For one thing, CC can efficiently prevent the aggregation of the NiMn LDH nanosheet and accelerate the electron transfer ability as a desired electric conductor. For another, the synthesized NiMn LDH nanostructures exhibited super electrocatalytic activity toward H 2 O 2 oxidation due to the large active surface area and the synergistic effect of Ni and Mn. Therefore, the nanostructured NiMn LDH on CC displays excellent sensing characteristic for H 2 O 2 with a broad linear range of 1−23,000 μM, a low detection limit of 0.26 μM, and a high sensitivity of 4108 μA mM −1 cm −2 . Moreover, the proposed sensor shows promising application prospects for detecting H 2 O 2 in frozen squid and dried tofu, demonstrating its importance in the food industry and food safety.

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Section: Introductionmentioning

confidence: 99%

Hierarchical NiMn Layered Double Hydroxide Nanostructures on Carbon Cloth for Electrochemical Detection of Hydrogen Peroxide

Wang

Zhang

et al. 2022

ACS Appl. Nano Mater.

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“…5e, the three peaks at 284.8, 286.8 and 290.4 eV in the C 1s spectrum are associated with C-C, C-O and CvO bonds, which are mainly from the acid treatment of BWCF. 34 The peaks at 399.1, 399.7 and 400.8 eV in N 1s spectrum (Fig. 5f ) are attributed to pyrrolic nitrogen, pyridinic nitrogen and graphitic nitrogen, which proves that the carbon matrix is doped with nitrogen heteroatoms.…”

Section: Resultsmentioning

confidence: 85%

Growing Co–Ni–Se nanosheets on 3D carbon frameworks as advanced dual functional electrodes for supercapacitors and sodium ion batteries

Gao

Xue

Zhang

et al. 2022

Inorg. Chem. Front.

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“…Two distinct peaks of Co 2p 3/2 and Co 2p 1/2 appearing at 781.4 and 796.8 eV accompanied by two broad satellite peaks can be seen in the Co 2p spectra ( Figure 3 b). For NiCo-LDH-150, two fitting peaks at 781.3 and 796.8 eV are classified as Co 3+ , and two fitting peaks at 783.1 and 798.2 eV are classified as Co 2+ [ 31 , 32 ]. From the spectra of NiCo-LDH@CNTs- z %, the binding energy of Co 2p 3/2 and Co 2p 1/2 transferred to higher binding energy, and the Co 3+ /Co 2+ ratio in the NiCo-LDH@CNTs-2.5% was the lowest ( Table S2 ).…”

Section: Resultsmentioning

confidence: 99%

“…This is usually solved by in situ growing LDHs on conductive matrices, for instance, carbon materials, metal foam, metal oxides, etc. [ 32 , 33 , 34 ]. Among these matrices, carbon nanotubes (CNTs) can achieve both high conductivity and a large specific area [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

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ZIF-67-Derived NiCo-Layered Double Hydroxide@Carbon Nanotube Architectures with Hollow Nanocage Structures as Enhanced Electrocatalysts for Ethanol Oxidation Reaction

et al. 2023

Molecules

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The rational design of efficient Earth-abundant electrocatalysts for the ethanol oxidation reaction (EOR) is the key to developing direct ethanol fuel cells (DEFCs). Among these, the smart structure is highly demanded for highly efficient and stable non-precious electrocatalysts based on transition metals (such as Ni, Co, and Fe). In this work, high-performance NiCo-layered double hydroxide@carbon nanotube (NiCo-LDH@CNT) architectures with hollow nanocage structures as electrocatalysts for EOR were prepared via sacrificial ZIF-67 templates on CNTs. Comprehensive structural characterizations revealed that the as-synthesized NiCo-LDH@CNTs architecture displayed 3D hollow nanocages of NiCo-LDH and abundant interfacial structure between NiCo-LDH and CNTs, which could not only completely expose active sites by increasing the surface area but also facilitate the electron transfer during the electrocatalytic process, thus, improving EOR activity. Benefiting from the 3D hollow nanocages and interfacial structure fabricated by the sacrificial ZIF-67-templated method, the NiCo-LDH@CNTs-2.5% architecture exhibited enhanced electrocatalytic activity for ethanol oxidation compared to single-component NiCo-LDH, where the peak current density was 11.5 mA·cm-2, and the jf/jb value representing the resistance to catalyst poisoning was 1.72 in an alkaline environment. These results provide a new perspective on the fabrication of non-precious metal electrocatalysts for EOR in DEFCs.

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Intercalating assembly of NiFe LDH nanosheets/CNTs composite as high-performance electrocatalyst for oxygen evolution reaction

Cited by 32 publications

References 62 publications

Hierarchical NiMn Layered Double Hydroxide Nanostructures on Carbon Cloth for Electrochemical Detection of Hydrogen Peroxide

Hierarchical NiMn Layered Double Hydroxide Nanostructures on Carbon Cloth for Electrochemical Detection of Hydrogen Peroxide

Growing Co–Ni–Se nanosheets on 3D carbon frameworks as advanced dual functional electrodes for supercapacitors and sodium ion batteries

ZIF-67-Derived NiCo-Layered Double Hydroxide@Carbon Nanotube Architectures with Hollow Nanocage Structures as Enhanced Electrocatalysts for Ethanol Oxidation Reaction

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