Oxidized single nickel atoms embedded in Ru matrix for highly efficient hydrogen evolution reaction

Shang, Long; Wang, Jiaqi; Cheng, Chuanqi; Zhang, Yan; Zhang, Feifei; Xie, Ya-Meng; Lu, Junda; Mao, Jing; Guo, Qianjin; Dong, Cunku; Liu, Hui; Du, Xi‐Wen

doi:10.1016/j.jallcom.2021.159909

Cited by 12 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oxygen is a common regulator to tune the electronic structure of a metal atom to further optimize ΔG H* , e.g., OCo, [112] OIr, [113] ONi. [115,118,119] For example, Tan's group observed a widened NiIr bond in Ni 1 /Ir SACs during HER in the alkaline medium (Figure 7f,g), which suggested that the oxidated single Ni atom in Ir support was reduced to [114] Copyright 2021, American Chemical Society. Reproduced with permission.…”

Section: Metalsmentioning

confidence: 99%

“…For the electrocatalysts working in an electrolyte under an applied potential, the ΔG H* referring to the original formulation of the computational hydrogen electrode model should be revised as the new formula of ΔG H* + < 0.2 eV, e.g., ΔG H* + 0.15 eV over Pt (111). [116] Except for Pt-based alloyed SACs, there are some other metal-based/alloyed HER SACs, [117] e.g., Ni 1 /Ir, [118] Ni 1 /Ru, [119] which also form the high HER active sites for water dissociation and a moderate ΔG H* . Moreover, these non-metals bonded with single atom can further optimize the HER performance of metal-based SACs.…”

Section: Metalsmentioning

confidence: 99%

See 1 more Smart Citation

SACs on Non‐Carbon Substrates: Can They Outperform for Water Splitting?

Sun

Zang

Sun

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

Non‐carbon‐supported single‐atom electrocatalysts (SACs) have attracted tremendous research interest for water splitting, owning to their remarkable differences in bond and coordination, and better and tunable catalytic performance, compared with those carbon‐supported SACs and commercial catalysts. The electrocatalytic performance of these non‐carbon‐supported SACs is intimately related to the structure, surficial chemical groups, and vacancy defects of non‐carbon host materials, as well as the physico‐chemical properties and population of single atoms. The much widened range of host materials and types of single atoms create virtually limitless opportunities in the design of SACs with tunable structures and electrocatalysis behaviors. In this review, the recent progress of non‐carbon‐supported SACs for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is visited, where the unique local structures, electrocatalytic performance, catalytic centers and key preparation processes are presented. The characterizations down to atomic scales that can reveal the key local structures and catalytic mechanism are also investigated. New insights into the correlations between the structural evolution of these SACs during electrocatalytic reactions and their catalytic performance are examined. Finally, the major challenges faced by these new SACs are summarized, together with future perspectives on the rational design of superior non‐carbon‐supported SACs.

show abstract

Section: Metalsmentioning

confidence: 99%

Section: Metalsmentioning

confidence: 99%

SACs on Non‐Carbon Substrates: Can They Outperform for Water Splitting?

Sun

Zang

Sun

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…The prepared MoS 2 QDs showed a high HER activity with a lower Tafel slope of 57 mV dec −1 . Shang et al 207 prepared single-atom catalysts (SAC) by embedding nickel atoms into Ru metal via PLA, resulting in NiRu SAC with an atomic-level interface with improved catalytic activity. The NiRu SAC showed significantly low overpotential for HER of 17 mV at 10 mAcm −2 with high durability, which was superior to that of the conventional Pt/C catalyst.…”

Section: Applications Of Laser-assisted Materialsmentioning

confidence: 99%

Fundamentals and comprehensive insights on pulsed laser synthesis of advanced materials for diverse photo- and electrocatalytic applications

et al. 2022

View full text Add to dashboard Cite

The global energy crisis is increasing the demand for innovative materials with high purity and functionality for the development of clean energy production and storage. The development of novel photo- and electrocatalysts significantly depends on synthetic techniques that facilitate the production of tailored advanced nanomaterials. The emerging use of pulsed laser in liquid synthesis has attracted immense interest as an effective synthetic technology with several advantages over conventional chemical and physical synthetic routes, including the fine-tuning of size, composition, surface, and crystalline structures, and defect densities and is associated with the catalytic, electronic, thermal, optical, and mechanical properties of the produced nanomaterials. Herein, we present an overview of the fundamental understanding and importance of the pulsed laser process, namely various roles and mechanisms involved in the production of various types of nanomaterials, such as metal nanoparticles, oxides, non-oxides, and carbon-based materials. We mainly cover the advancement of photo- and electrocatalytic nanomaterials via pulsed laser-assisted technologies with detailed mechanistic insights and structural optimization along with effective catalytic performances in various energy and environmental remediation processes. Finally, the future directions and challenges of pulsed laser techniques are briefly underlined. This review can exert practical guidance for the future design and fabrication of innovative pulsed laser-induced nanomaterials with fascinating properties for advanced catalysis applications.

show abstract

“…22 Afterwards, they embedded oxidized single nickel atoms into pure Ru metal by liquid-phase laser ablation to build atomic-scale interfaces with high catalytic activity. 23 Liang et al synthesized a uniform PtRu alloy with isolated Pt atoms immobilized on the surface of the Ru matrix using laser irradiation in the liquid method. 24 Although the liquid-phase laser ablation technology has been widely used in the preparation of hybrid electrocatalysts, there is still a lack of detailed explanations for the control mechanism of the laser-assisted second metal doping amount.…”

Section: Introductionmentioning

confidence: 99%