Sub‐2 nm Ultrathin and Robust 2D FeNi Layered Double Hydroxide Nanosheets Packed with 1D FeNi‐MOFs for Enhanced Oxygen Evolution Electrocatalysis (Adv. Funct. Mater. 43/2021)

Zheng, Fuqin; Zhang, Wanfu; Zhang, Xiaoxia; Zhang, Youlin; Chen, Wei

doi:10.1002/adfm.202170323

Cited by 23 publications

(26 citation statements)

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“…Two dimensional (2D) nanomaterials, including graphene, [ 18,19 ] black phosphorus (BP), [ 20 ] transition metal dichalcogenides, [ 21,22 ] hexagonal boron nitride, [ 23,24 ] metal–organic frameworks (MOFs), [ 25–30 ] MXenes, [ 31 ] and layered double hydroxides (LDHs), [ 32–35 ] etc, have attracted tremendous attention in the field of energy conversion and storage owing to their high surface areas and favorable electronic properties. Among them, LDHs are the most promising OER electrocatalysts to replace noble metals because of their low‐cost, rich resources, and high intrinsic activities.…”

Section: Introductionmentioning

confidence: 99%

Controllable Synthesis of Ultrathin Defect‐Rich LDH Nanoarrays Coupled with MOF‐Derived Co‐NC Microarrays for Efficient Overall Water Splitting

Guo

Chen

et al. 2022

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Water electrolysis has attracted immense research interest, nevertheless the lack of low‐cost but efficient bifunctional electrocatalysts for both hydrogen and oxygen evolution reactions greatly hinders its commercial applications. Herein, the controllable synthesis of ultrathin defect‐rich layered double hydroxide (LDH) nanoarrays assembled on metal‐organic framework (MOF)‐derived Co‐NC microarrays for boosting overall water splitting is reported. The Co‐NC microarrays can not only provide abundant nucleation sites to produce a large number of LDH nuclei for favoring the growth of ultrathin LDHs, but also help to inhibit their tendency to aggregate. Impressively, five types of ultrathin bimetallic LDH nanoarrays can be electrodeposited on the Co‐NC microarrays, forming desirable nanoarray‐on‐macroarray architectures, which show high uniformity with thicknesses from 1.5 to 1.9 nm. As expected, the electrocatalytic performance is significantly enhanced by exploiting the respective advantages of Co‐NC microarrays and ultrathin LDH nanoarrays as well as the potential synergies between them. Especially, the optimal Co‐NC@Ni2Fe‐LDH as both cathode and anode can afford the lowest cell voltage of 1.55 V at 10 mA cm‐2, making it one of the best earth‐abundant bifunctional electrocatalysts for water electrolysis. This study provides new insights into the rational design of highly‐active and low‐cost electrocatalysts and facilitates their promising applications in the fields of energy storage and conversion.

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Section: Introductionmentioning

confidence: 99%

Controllable Synthesis of Ultrathin Defect‐Rich LDH Nanoarrays Coupled with MOF‐Derived Co‐NC Microarrays for Efficient Overall Water Splitting

Guo

Chen

et al. 2022

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“…Urgent demand of renewable energy has promoted intensive study on exploring highly efficient energy conversion technologies [2, 3] . Significantly, as an ideal energy carrier, hydrogen has attracted broad attention because of its environmental friendliness and high calorific value [4, 5] . Electrochemical water splitting provides a cost‐efficient and sustainable approach for hydrogen generation.…”

Section: Figurementioning

confidence: 99%

Construction of Ni‐Co‐Fe Hydr(oxy)oxide@Ni‐Co Layered Double Hydroxide Yolk‐Shelled Microrods for Enhanced Oxygen Evolution

et al. 2022

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The exploration of earth-abundant and efficient electrocatalysts toward the oxygen evolution reaction (OER) is critical for sustainable energy storage and conversion devices. In this work, we report a selfengaged strategy to fabricate a yolk-shelled OER electrocatalyst. Starting with a metal-organic framework, Co-Fe layered double hydroxide (LDH)@zeolitic imidazolate framework-67 (ZIF-67) yolk-shelled structures are formed in one step. Afterwards, these ZIF-67 building blocks are transformed into Ni-Co LDH nanocages to form the Ni-Co-Fe hydr(oxy)

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“…Metal–organic frameworks (MOFs), as one class of highly ordered crystalline coordination polymers, provide opportunities for the atomically precise catalyst design and regulation, as well as comprehensive catalytic mechanism studies with respect to their merits of abundant definite active sties, large surface area, permanent porous architecture, and tailorable structure. ,− Most traditional three-dimensional (3D) MOFs are insulators and exhibit low electrocatalytic activity. In order to overcome the above limitation, MOFs have been widely used as the pyrolysis precursors for fabricating porous carbon or metal oxides toward high-performance electrocatalysts. − However, the pyrolysis treatment inevitably results in extra energy consumption, compromises their structural certainty and homogeneity, and impedes unveiling active sites and the reaction mechanism for further rational catalyst design. , Thus, various strategies have been explored to develop conductive MOFs, such as doping with guest molecules, constructing with well-designed ligands like conjugated monomers, and so on. − …”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Conjugated Metal–Organic Frameworks for Electrocatalysis: Opportunities and Challenges

et al. 2022

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A highly effective electrocatalyst is the central component of advanced electrochemical energy conversion. Recently, two-dimensional conjugated metal–organic frameworks (2D c-MOFs) have emerged as a class of promising electrocatalysts because of their advantages including 2D layered structure with high in-plane conjugation, intrinsic electrical conductivity, permanent pores, large surface area, chemical stability, and structural diversity. In this Review, we summarize the recent advances of 2D c-MOF electrocatalysts for electrochemical energy conversion. First, we introduce the chemical design principles and synthetic strategies of the reported 2D c-MOFs, as well as the functional design for the electrocatalysis. Subsequently, we present the representative 2D c-MOF electrocatalysts in various electrochemical reactions, such as hydrogen/oxygen evolution, and reduction reactions of oxygen, carbon dioxide, and nitrogen. We highlight the strategies for the structural design and property tuning of 2D c-MOF electrocatalysts to boost the catalytic performance, and we offer our perspectives in regard to the challenges to be overcome.

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Sub‐2 nm Ultrathin and Robust 2D FeNi Layered Double Hydroxide Nanosheets Packed with 1D FeNi‐MOFs for Enhanced Oxygen Evolution Electrocatalysis (Adv. Funct. Mater. 43/2021)

Cited by 23 publications

References 0 publications

Controllable Synthesis of Ultrathin Defect‐Rich LDH Nanoarrays Coupled with MOF‐Derived Co‐NC Microarrays for Efficient Overall Water Splitting

Controllable Synthesis of Ultrathin Defect‐Rich LDH Nanoarrays Coupled with MOF‐Derived Co‐NC Microarrays for Efficient Overall Water Splitting

Construction of Ni‐Co‐Fe Hydr(oxy)oxide@Ni‐Co Layered Double Hydroxide Yolk‐Shelled Microrods for Enhanced Oxygen Evolution

Two-Dimensional Conjugated Metal–Organic Frameworks for Electrocatalysis: Opportunities and Challenges

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