A Cu loaded NiFe layered double hydroxide bifunctional electrocatalyst with a coupled interface structure for both the nitrate reduction reaction and oxygen evolution reaction

Du, Feng; Yao, Jixin; Luo, Hui; Chen, Yanru; Qin, Yujie; Du, Yuxin; Wang, Yijian; Hou, Wei; Shuai, Miaoxi; Guo, Chunxian

doi:10.1039/d3gc03823h

Cited by 6 publications

(1 citation statement)

References 34 publications

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“…16–21 A wide array of catalytic systems has been constructed by researchers to augment the yield of the targeted renewable energy carrier during energy-conversion applications. These systems include perovskites, 22,23 mesoporous materials, 24,25 transition metal oxides 26 /phosphides 27 /dichalchogenides 28 /carbonitrides/borides, 29,30 single-atom catalysts (SACs), 31,32 layered double hydroxides (LDHs), 33,34 and carbon-based derivatives. 35…”

Section: Introductionmentioning

confidence: 99%

Flatland materials for photochemical and electrochemical nitrogen fixation applications: from lab-door experiments to large-scale applicability

Ali,

Sadiq,

Ahmad

2024

Sustainable Energy Fuels

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Section: Introductionmentioning

confidence: 99%

Flatland materials for photochemical and electrochemical nitrogen fixation applications: from lab-door experiments to large-scale applicability

Ali,

Sadiq,

Ahmad

2024

Sustainable Energy Fuels

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Copper–Nickel Oxide Nanosheets with Atomic Thickness for High‐Efficiency Sulfur Ion Electrooxidation Assisted Nitrate Electroreduction to Ammonia

Wang,

Hong,

Shao

et al. 2024

Adv Funct Materials

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The nitrate electroreduction reaction (NO3RR) offers an eco‐friendly alternative to the Haber–Bosch technology for ammonia (NH3) synthesis. However, the complex reaction process and diverse products make efficient NH3 synthesis challenging. Therefore, the rational design and preparation of highly efficient electrocatalysts are crucial for NO3RR. Herein, ultrathin copper‐nickel oxide (Cu‐NiO) nanosheets (Cu‐NiO UTNSs) are synthesized via the cyanogel‐NaBH4 hydrolysis‐reduction method, which are applied for the cathodic NO3 RR to NH3‐assisted with the anodic sulfur ion (S2−) oxidation reaction (SOR) in an electrolyzer. The ultrathin nanosheet structure, the interaction between NiO and Cu, and the formation of oxygen vacancy contribute to generating the rich active sites, regulating the electronic structure, and improving the substance adsorption. Thus, the Cu‐NiO UTNSs exhibit excellent electrocatalytic performance for NO3RR and SOR. As a bifunctional Cu‐NiO UTNSs||Cu‐NiO UTNSs electrolyzer, it can reach 10 mA cm−1 at only 0.1 V for NO3−‐to‐NH3 conversion at the cathode and S2−‐to‐S8 conversion at the anode. This work provides a promising approach for producing value‐added chemicals at a low electrolysis voltage and a strategy for pollutant treatment.

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Recent Progress in Cobalt‐Based Electrocatalysts for Efficient Electrochemical Nitrate Reduction Reaction

Meng,

Tan,

et al. 2024

Adv Funct Materials

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Electrochemical nitrate reduction reaction (NO3−RR) provides a sustainable and efficient way to producing ammonia at ambient condition and denitrifying wastewater. However, NO3−RR is still confronted with some barriers at present, because of the sluggish reaction kinetics and competitive hydrogen evolution reaction (HER). Particularly, it requires highly robust and selective electrocatalysts, which steers the complex multistep reactions toward NO3−RR process. Among the various electrocatalysts, Co‐based electrocatalysts demonstrate a rapid reaction kinetics, steady catalytic performance, and suppressive impact on HER for NO3−RR, attracting more attention. In this review, it is focused on Cobalt‐based electrocatalysts design for NO3−RR and the corresponding design strategies are summarized. In detail, these can be concisely classified into five categories, including the Co‐based oxides and hydroxides, alloys, metal, and heteroatom‐doped materials, metal organic frameworks and derivatives. Each category is extensively discussed, with its design concepts and ideas clearly conveyed through appropriate illustrations and figures. Finally, the scientific and technological challenges as well as promising constructing strategies for NO3−RR system in the future are discussed. It is expected that this review can provide valuable insights and guidance into rational design of Co‐based electrocatalysts for NO3−RR, ultimately advancing their applications to industrial scenario with high current density, stability, and energy efficiency.

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A Cu loaded NiFe layered double hydroxide bifunctional electrocatalyst with a coupled interface structure for both the nitrate reduction reaction and oxygen evolution reaction

Abstract: We present an interface coupling strategy using Cu nanoclusters and NiFe LDH nanosheets to form a heterostructure electrocatalyst (Cu/NiFe LDH) and apply it as both NO3−RR and OER bifunctional electrodes under ambient conditions.

Cited by 6 publications

References 34 publications

Flatland materials for photochemical and electrochemical nitrogen fixation applications: from lab-door experiments to large-scale applicability

Flatland materials for photochemical and electrochemical nitrogen fixation applications: from lab-door experiments to large-scale applicability

Copper–Nickel Oxide Nanosheets with Atomic Thickness for High‐Efficiency Sulfur Ion Electrooxidation Assisted Nitrate Electroreduction to Ammonia

Recent Progress in Cobalt‐Based Electrocatalysts for Efficient Electrochemical Nitrate Reduction Reaction

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