Interfacial electronic engineering of Ru/FeRu nanoparticles as efficient trifunctional electrocatalyst for overall water splitting and Zn-air battery

Article Chemistry, Physical

Highly active atomically dispersed platinum-based electrocatalyst for hydrogen evolution reaction achieved by defect anchoring strategy

Yawen Chen et al.

Summary: By preparing Pt1/Co1NC single-atom catalyst on a support rich in defects, high HER activity and stability were achieved. Nitrogen/carbon defects were found to be crucial for anchoring and forming Pt active sites.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Chemistry, Physical

In situ produced Co9S8 nanoclusters/Co/Mn-S, N multi-doped 3D porous carbon derived from eriochrome black T as an effective bifunctional oxygen electrocatalyst for rechargeable Zn-air batteries

Rui-Min Sun et al.

Summary: The study presents a method for preparing a high-efficiency, low-cost, and stable non-noble metal catalyst on the air cathode by implanting Co9S8 nanoclusters in porous carbon. The catalyst exhibits effective oxygen reduction and evolution reaction catalysis, outperforming commercial catalysts. This research provides guidance for developing bifunctional oxygen electrocatalysts in energy conversion and storage devices.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Aminouracil-assisted synthesis of CoFe decorated bougainvillea-like N-doped carbon nanoflowers for boosting Zn-air battery and water electrolysis

Shi-Yi Lin et al.

Summary: In this study, highly efficient and cost-effective non-precious metal-based electrocatalysts were synthesized for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). The catalyst exhibited improved performance with positive onset potential, small overpotential, and excellent stability. It shows great potential for applications in metal-air batteries and water electrolysis.

JOURNAL OF POWER SOURCES (2022)

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Article Nanoscience & Nanotechnology

Enhanced Electrocatalytic Activity of Nickel Cobalt Phosphide Nanoparticles Anchored on Porous N-Doped Fullerene Nanorod for Efficient Overall Water Splitting

Yongqiang Feng et al.

Summary: A novel hybrid nanostructure was developed by decorating Ni2P/CoP nanoparticles on a porous N-doped fullerene nanorod as a bifunctional electrocatalyst for water splitting, showing outstanding catalytic performance. Experimental and theoretical results demonstrate that the surface engineered fullerene nanorod plays a critical role in accelerating charge transfer.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Single Atom Ruthenium-Doped CoP/CDs Nanosheets via Splicing of Carbon-Dots for Robust Hydrogen Production

Haoqiang Song et al.

Summary: This study introduces a composite material design with CoP nanoparticles doped with Ru single-atom sites supported on carbon dots (CDs) single-layer nanosheets, forming Ru1CoP/CDs. The catalyst shows high efficiency for the hydrogen evolution reaction over a wide pH range and excellent stability and activity. Through density functional theory calculations, it was revealed that the substituted Ru single atoms enhance catalytic performance by lowering the proton-coupled electron transfer energy barrier and promoting H-H bond formation. This research presents a new approach for developing carbon-based hybridization materials with integrated electrocatalytic performance for water splitting.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Trifunctional electrocatalyst of N-doped graphitic carbon nanosheets encapsulated with CoFe alloy nanocrystals: The key roles of bimetal components and high-content graphitic-N

Saijun Wang et al.

Summary: Researchers have synthesized a robust trifunctional electrocatalyst based on N-doped graphitic carbon nanosheets encapsulated with CoFe alloy nanocrystals, which exhibits superior electrocatalytic performance attributed to the synergetic effect of rich CoFe alloy sites and high-content doping of graphitic N.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

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Article Chemistry, Multidisciplinary

RuRh Bimetallene Nanoring as High-efficiency pH-Universal Catalyst for Hydrogen Evolution Reaction

Xueqin Mu et al.

Summary: RuRh2 bimetallene nanoring with rich structural defects exhibits excellent HER performance in various media, showing high activity in acidic conditions and maintaining stability even after prolonged cycles, as well as outstanding performance in alkaline and neutral media. The atomic-scale structure observation and density functional theory calculations reveal that the grain boundaries and symmetry breaking of RuRh2 bimetallene contribute to its enhanced electrocatalytic performance by weakening adsorption strength of atomic hydrogen and facilitating electron transfer and reactant adsorption.

ADVANCED SCIENCE (2021)

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Article Chemistry, Multidisciplinary

Sub-2 nm Thiophosphate Nanosheets with Heteroatom Doping for Enhanced Oxygen Electrocatalysis

Junnan Song et al.

Summary: In this study, anion-regulated sub-2 nm ultrathin thiophosphate nanosheets were designed and synthesized as bifunctional oxygen evolution/reduction reaction electrocatalysts for Zn-air batteries. The incorporation of Se dopants expanded crystal plane spacing, generated a partially disordered structure, and regulated electronic structures of active sites. Density functional theory calculations showed reduced overpotential and a shortened energy bandgap, enhancing reaction kinetics and conductivity for efficient electrocatalysis in metal-air battery technologies.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Physical

Rational design of Ru aerogel and RuCo aerogels with abundant oxygen vacancies for hydrogen evolution reaction, oxygen evolution reaction, and overall water splitting

Zongshan Lin et al.

Summary: This study reports a facile method to prepare Ru-based aerogels for hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and water electrolysis. Ru aerogel shows comparable performance with Pt/C for HER, while Ru0.7Co0.3 aerogel exhibits superior OER performance. The combined Ru and Ru0.7Co0.3 aerogel catalyst outperforms the Pt/C + RuO2 couple in practical overall water splitting test.

JOURNAL OF POWER SOURCES (2021)

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Article Multidisciplinary Sciences

A Ta-TaS2 monolith catalyst with robust and metallic interface for superior hydrogen evolution

Qiangmin Yu et al.

Summary: The study presents a mechanically stable monolith electrocatalyst that achieves superior hydrogen evolution at large current densities.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Electronic Modulation Caused by Interfacial Ni-O-M (M=Ru, Ir, Pd) Bonding for Accelerating Hydrogen Evolution Kinetics

Liming Deng et al.

Summary: Designing a well-defined metal-support interfacial bond is an effective strategy to optimize the intrinsic activity of noble metals, but it is also challenging. The developed quantum-sized metal nanoparticles anchored on nickel metal-organic framework nanohybrids demonstrate excellent hydrogen evolution reaction (HER) activity at all pH values, surpassing even commercial Pt/C and recent noble-metal catalysts. The interfacial-bond-induced electron redistribution plays a crucial role in enhancing the reaction kinetics and overall performance of the hybrids.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Construction of Dual-Site Atomically Dispersed Electrocatalysts with Ru-C5 Single Atoms and Ru-O4 Nanoclusters for Accelerated Alkali Hydrogen Evolution

Dong Cao et al.

Summary: This study developed a universal method to construct Ru atomically dispersed catalysts, which can accelerate multistep reactions. The catalyst was found to synergically boost water molecule capture, water dissociation, and hydrogen release, providing a new approach for synergic catalysis.

SMALL (2021)

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Article Multidisciplinary Sciences

Solvent-free microwave synthesis of ultra-small Ru-Mo2C@CNT with strong metal-support interaction for industrial hydrogen evolution

Xueke Wu et al.

Summary: This study demonstrates a simple, fast, solvent-free microwave pyrolysis method to synthesize highly active electrocatalysts with strong metal-support interaction and stability for large-scale industrial H-2 production. The catalyst shows promising potential for application in large-scale hydrogen production.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Engineering single-atomic ruthenium catalytic sites on defective nickel-iron layered double hydroxide for overall water splitting

Panlong Zhai et al.

Summary: Rational design of single atom catalyst is critical for efficient sustainable energy conversion. Single-atomic-site ruthenium stabilized on defective nickel-iron layered double hydroxide nanosheets achieve superior HER and OER performance in alkaline media.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Platinum single-atom catalyst coupled with transition metal/metal oxide heterostructure for accelerating alkaline hydrogen evolution reaction

Kai Ling Zhou et al.

Summary: Single-atom platinum immobilized NiO/Ni heterostructure acts as a highly efficient alkaline hydrogen evolution catalyst by enabling tunable binding abilities and enhancing water dissociation energy. Constructing hierarchical three-dimensional morphology further enhances the catalytic performance.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Physical

Dual-Sites Coordination Engineering of Single Atom Catalysts for Flexible Metal-Air Batteries

Deshuang Yu et al.

Summary: This study developed atomically dispersed Fe-Ni single atom catalysts that exhibit outstanding activity for oxygen reduction and evolution reactions, as well as superior performance in flexible zinc-air and aluminum-air batteries.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

Enhancing oxygen reduction electrocatalysis by tuning interfacial hydrogen bonds

Tao Wang et al.

Summary: The proton activity at the electrified interface plays a crucial role in the kinetics of proton-coupled electron transfer reactions. By using a library of protic ionic liquids on platinum and gold interfaces, researchers have successfully enhanced the oxygen reduction reaction activity by up to fivefold, showing a volcano-shaped dependence on the pK(a) of the ionic liquid. This enhancement is attributed to strengthened hydrogen bonds between ORR products and ionic liquids with similar pK(a)s, leading to favorable PCET kinetics.

NATURE CATALYSIS (2021)

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Article Chemistry, Multidisciplinary

Interfacial electronic coupling of ultrathin transition-metal hydroxide nanosheets with layered MXenes as a new prototype for platinum-like hydrogen evolution

Linlin Li et al.

Summary: Metal hydroxides@MXene hybrids were introduced as efficient electrocatalysts for the alkaline HER, showing Pt-like catalytic activity and excellent stability. The interfacial electronic coupling between transition-metal hydroxides and MXene nanosheets plays a crucial role in optimizing the adsorption energy of water and hydrogen. This study highlights the great potential of interfacial electronic coupling in developing advanced electrocatalysts for applications in energy-related fields.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

Defect-rich bimetallic yolk-shell metal-cyanide frameworks as efficient electrocatalysts for oxygen evolution reactions

Yongqiang Feng et al.

Summary: The study successfully fabricated defect-rich YS-PBA using the RIDR strategy, which exhibited excellent OER performance with improved activity due to the defects. The defects in YS-PBA led to long-term stability in alkaline media, showing promising potential as a noble-metal-free electrocatalyst for OER.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Multidisciplinary