Electronic modulation of Pt nanoclusters through tuning the interface of Pt-SnO2 clusters for enhanced hydrogen evolution catalysis

Lai, Yuquan; Zhang, Zhaoting; Zhang, Zeyi; Tan, Yangyang; Yu, Liyue; Wu, Wei; Wang, Zichen; Jiang, Tao; Gao, Songtao; Cheng, Niancai

doi:10.1016/j.cej.2022.135102

Cited by 35 publications

(30 citation statements)

References 71 publications

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“…A high d-band center promotes the chemisorption of reactive species on the catalytic sites, thereby improving the catalytic activities. [63] To validate this effect, the water adsorption and water dissociation energy on the catalytic surfaces of a-RuCo (Fe, Ni) and c-RuCo were examined (Figure S30, Supporting Information). As shown in Figure 5b, a-RuNi, a-RuFe, and c-RuCo exhibit relatively low water adsorption ability (evidenced by the low adsorption energy of −0.55, −0.47, and 0.09 eV, respectively) and high-water dissociation energy barrier (0.44, 0.63, and 0.89 eV, respectively), indicating a highly slug-gish Volmer step.…”

Section: Theoretical Studymentioning

confidence: 99%

Activating Amorphous Ru Metallenes Through Co Integration for Enhanced Water Electrolysis

Jose

Prabhu

et al. 2023

Advanced Energy Materials

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Designing efficient bifunctional electrocatalysts with excellent activity and robust stability presents a central challenge for the large‐scale commercialization of water electrolysis. Herein, a facile approach is reported for the construct of atomically thin amorphous RuM (MCo, Fe, or Ni) bimetallenes as high‐performance electrocatalysts toward both electrochemical hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The RuCo bimetallene manifests excellent bifunctional activity characterized by low required overpotentials, superior price activity, robust electrochemical durability as well as a low cell potential water splitting performance, outperforming Pt/C and RuO2 benchmark catalysts. Combined operando X‐ray absorption spectroscopy investigation and theoretical simulations reveal the synergism taking place between binary constituents, in which Co serves a promotive role along the HER/OER reaction pathway, contributing via optimal binding to *OH for facile water dissociation as well as modulating the Ru electronic structure favorably, hence rendering high activity catalytic centers for both the alkaline HER and OER.

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Section: Theoretical Studymentioning

confidence: 99%

Activating Amorphous Ru Metallenes Through Co Integration for Enhanced Water Electrolysis

Jose

Prabhu

et al. 2023

Advanced Energy Materials

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“…To shed some light on the interaction of Pt with other components, density functional theory (DFT) calculations are generally conducted. Although numerous catalysts have shown the potential to replace commercial Pt/C catalysts, [87][88][89][90][91][92][93][94][95][96] an integrated review about design and application of UPLEs is still needed to guide future research. Here, HER mechanisms and general evaluation measurements of HER are first introduced.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Ultralow‐Pt‐Loading Electrocatalysts for the Efficient Hydrogen Evolution

et al. 2023

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Hydrogen production from water electrolysis provides a green and sustainable route. Platinum (Pt)-based materials have been regarded as efficient electrocatalysts for the hydrogen evolution reaction (HER). However, the large-scale commercialization of Pt-based catalysts suffers from the high cost. Therefore, ultralow-Pt-loading electrocatalysts, which can reach the balance of low cost and high HER performance, have attracted much attention. In this review, representative promising synthetic strategies, including wet chemistry, annealing, electrochemistry, photochemistry, and atomic layer deposition are summarized. Further, the interaction between different electrocatalyst components (transition metals and their derivatives) and Pt is discussed. Notably, this interaction can effectively accelerate the kinetics of the HER, enhancing the catalytic activity. At last, current challenges and future perspectives are briefly discussed.

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“…In the context of global carbon neutralization, fuel cells and metal–air batteries have been regarded as promising technologies to realize the wide implementation of clean and sustainable energy-conversion infrastructures. , Till today, to conquer the high energy barrier of the sluggish oxygen reduction reaction (ORR) in fuel cells and metal–air batteries, platinum (Pt) and Pt group precious metals are still the preferred electrocatalysts owing to their fast reaction kinetics and low thermodynamic overpotential; however, the scarcity, prohibitive cost, and less-than-ideal durability of these noble metals impede their widespread commercial applications. , In addition, traditional Pt group electrocatalysts are typically supported on a carbon matrix and in particle states with a relatively high mass loading, which would lead to the severe agglomeration and nonuniformity of nanoparticles due to the corrosion of carbon supports, thus deteriorating the persistent catalysis. , As potential substitutes to Pt group metals, nonprecious metals are not yet available for fuel cell devices because of the non-noble elements’ dissolution issue upon operation in an acidic environment . Therefore, exploring highly active and durable Pt group electrocatalysts with minimal loadings remains a long-lasting and imperative target for ORR-involved energy-conversion devices.…”

Section: Introductionmentioning

confidence: 99%

“…3,4 In addition, traditional Pt group electrocatalysts are typically supported on a carbon matrix and in particle states with a relatively high mass loading, which would lead to the severe agglomeration and nonuniformity of nanoparticles due to the corrosion of carbon supports, thus deteriorating the persistent catalysis. 5,6 As potential substitutes to Pt group metals, nonprecious metals are not yet available for fuel cell devices because of the non-noble elements' dissolution issue upon operation in an acidic environment. 7 Therefore, exploring highly active and durable Pt group electrocatalysts with minimal loadings remains a long-lasting and imperative target for ORR-involved energy-conversion devices.…”

Section: ■ Introductionmentioning

confidence: 99%

Pt–Fe–Cu Ordered Intermetallics Encapsulated with N-Doped Carbon as High-Performance Catalysts for Oxygen Reduction Reaction

Qin

Zou

Zhang

et al. 2022

ACS Sustainable Chem. Eng.

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Ternary platinum (Pt)-based ordered intermetallics represent a group of promising electrocatalysts in energy-conversion applications, because of their multielemental coupling that can potentially boost the activity and durability of the oxygen reduction reaction (ORR). Yet, the achievable catalysis performance is still susceptible to the inevitable transition metal leaching that can hardly be eliminated in an acidic environment. Herein, we report a nitrogen (N)-modified carbon (shell) encapsulated Pt−Fe−Cu ordered intermetallic nanoparticles (core) electrocatalyst for acidic ORR, where the Pt−Fe−Cu core presents a face-centered tetragonal (fct) phase. It is demonstrated that N-doped carbon shells can not only protect Pt−Fe−Cu cores from dissolution, agglomeration, coalescence, and Ostwald ripening but also enable the electronic structure regulation of the central Pt sites through the strong Fe−N coordination. The optimized Pt−Fe−Cu intermetallic with N-doped carbon shells delivers superior ORR activity and is more chemically stable over disordered Pt−Fe−Cu alloy, Pt−Fe−Cu intermetallics without a N-doped carbon shell, and commercial Pt/C, where the achievable ORR mass and specific activities are nearly 5-fold and 4-fold higher than those of commercial Pt/C in the acidic media, respectively.

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Electronic modulation of Pt nanoclusters through tuning the interface of Pt-SnO2 clusters for enhanced hydrogen evolution catalysis

Cited by 35 publications

References 71 publications

Activating Amorphous Ru Metallenes Through Co Integration for Enhanced Water Electrolysis

Activating Amorphous Ru Metallenes Through Co Integration for Enhanced Water Electrolysis

Recent Advances in Ultralow‐Pt‐Loading Electrocatalysts for the Efficient Hydrogen Evolution

Pt–Fe–Cu Ordered Intermetallics Encapsulated with N-Doped Carbon as High-Performance Catalysts for Oxygen Reduction Reaction

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