Insight into the role of Ni–Fe dual sites in the oxygen evolution reaction based on atomically metal-doped polymeric carbon nitride

Wu, Chuchu; Zhang, Xiaoming; Xia, Zhangxun; Miao, Shu; Li, Huanqiao; Xu, Xinlong; Si, Rui; Rykov, Alexandre I.; Wang, Junhu; Yu, Shansheng; Wang, Suli

doi:10.1039/c9ta03163d

Cited by 106 publications

(73 citation statements)

References 59 publications

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“…The OER kinetics were further analyzed by examining Tafel plots. In another work, the mechanism of active enhancement for Ni–Fe sites was further discussed . The Ni–Fe dual metal sites exhibited a smaller Tafel slope (38 mV dec −1 ) and a lower overpotential (310 mV at 10 mA cm −2 ) when compared to single metal Ni or Fe sites.…”

Section: Atomically Dispersed Single Metal Site Electrocatalysis For mentioning

confidence: 98%

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Zhu

Sokolowski

Song

et al. 2019

Advanced Energy Materials

281

240

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Carbon‐based heteroatom‐coordinated single‐atom catalysts (SACs) are promising candidates for energy‐related electrocatalysts because of their low‐cost, tunable catalytic activity/selectivity, and relatively homogeneous morphologies. Unique interactions between single metal sites and their surrounding coordination environments play a significant role in modulating the electronic structure of the metal centers, leading to unusual scaling relationships, new reaction mechanisms, and improved catalytic performance. This review summarizes recent advancements in engineering of the local coordination environment of SACs for improved electrocatalytic performance for several crucial energy‐convention electrochemical reactions: oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, CO2 reduction reaction, and nitrogen reduction reaction. Various engineering strategies including heteroatom‐doping, changing the location of SACs on their support, introducing external ligands, and constructing dual metal sites are comprehensively discussed. The controllable synthetic methods and the activity enhancement mechanism of state‐of‐the‐art SACs are also highlighted. Recent achievements in the electronic modification of SACs will provide an understanding of the structure–activity relationship for the rational design of advanced electrocatalysts.

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Section: Atomically Dispersed Single Metal Site Electrocatalysis For mentioning

confidence: 98%

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Zhu

Sokolowski

Song

et al. 2019

Advanced Energy Materials

281

240

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“…23 However, wide applications have been restricted by their inherent defects, such as poor biocompatibility, high cost, low photostability, tedious preparation procedures, and low targeting efficiency toward bacteria. Among these investigated materials, the copper suldes (CuS) 18,19,[24][25][26][27][28][29][30] stand out as suitable choices for photothermal therapy because of their excellent photothermal conversion efficiency in the NIR region and high intrinsic thermal conductivity. [31][32][33] However, the low surface area and easy sedimentation hindered their widely applications in PTT as a means of eliminating trapped bacteria.…”

Section: Introductionmentioning

confidence: 99%

CuS nanoparticles anchored to g-C₃N₄ nanosheets for photothermal ablation of bacteria

Liu

Yan

et al. 2020

RSC Adv.

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“…In addition, Sun and co-workers developed polymeric carbon nitride (PCN) with atomically dispersed N-coordinated Ni-Fe sites to explore the OER process. [51] Density functional theory calculations based on the oxidized-NiFe@PCN model found that adjacent Ni and Fe atoms coparticipate in the OER process in the NiFe-codoped PCN, thereby leading to a significantly lower energy barrier.…”

Section: The Active Sites For the Oer In Different Nife-based Electromentioning

confidence: 99%

Recent Progress on NiFe‐Based Electrocatalysts for the Oxygen Evolution Reaction

Zhao

Zhang

et al. 2020

Small

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are required. [2a,b,3] Among the various sustainable energy candidates, hydrogen fuel has garnered significant attention owing to its natural advantages. Hydrogen is typically a nontoxic and environmentally friendly power source that can be produced from water, which is an earth-abundant reactant, and produces no CO 2 emissions when converted into other energy forms. [4-6] In addition, due to its high mass-specific energy density, hydrogen can be efficiently used in mobile applications. Moreover, hydrogen can be used in combustion engines and fuel cells. Hence, the development of efficient hydrogen-based energy systems is necessary. [7-9] Producing hydrogen by electrolytic water splitting is considered a promising approach to resolve the current environmental crisis and has been extensively investigated with emphasis on availability and sustainability. [10,11] During water electrolysis, the cathodic hydrogen evolution reaction (HER) [12] and the anodic oxygen evolution reaction (OER) occur simultaneously, as exemplified by the following equations

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Insight into the role of Ni–Fe dual sites in the oxygen evolution reaction based on atomically metal-doped polymeric carbon nitride

Abstract: Ni–Fe dual-metal sites on NiFe-codoped polymeric carbon nitride co-participate in the OER process leading to significantly enhanced electrocatalytic activity.

Cited by 106 publications

References 59 publications

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

CuS nanoparticles anchored to g-C₃N₄ nanosheets for photothermal ablation of bacteria

Recent Progress on NiFe‐Based Electrocatalysts for the Oxygen Evolution Reaction

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Insight into the role of Ni–Fe dual sites in the oxygen evolution reaction based on atomically metal-doped polymeric carbon nitride

Abstract: Ni–Fe dual-metal sites on NiFe-codoped polymeric carbon nitride co-participate in the OER process leading to significantly enhanced electrocatalytic activity.

Cited by 106 publications

References 59 publications

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

CuS nanoparticles anchored to g-C3N4 nanosheets for photothermal ablation of bacteria

Recent Progress on NiFe‐Based Electrocatalysts for the Oxygen Evolution Reaction

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CuS nanoparticles anchored to g-C₃N₄ nanosheets for photothermal ablation of bacteria