Intermetallic NixMy (M = Ga and Sn) Nanocrystals: A Non‐precious Metal Catalyst for Semi‐Hydrogenation of Alkynes

Liu, Yuxi; Liu, Xiangwen; Feng, Quanchen; He, Dongsheng; Zhang, Libo; Lian, Chang; Shen, Rongan; Zhao, Guofeng; Ji, Yongjun; Wang, Dingsheng; Zhou, Gang; Li, Yadong

doi:10.1002/adma.201600603

Cited by 171 publications

(144 citation statements)

References 56 publications

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“…For a system involving two components with relatively low electronegativities, the use of a strong reducing agent is essential. Most recently, Wang and co‐workers demonstrated the synthesis of L1 2 Ni 3 Sn, monoclinic Ni 3 Sn 4 , and hexagonal Ni 3 Sn 2 intermetallic nanocrystals by co‐reducing two metal precursors with different molar ratios in OAm using n‐butyllithium as a reductant at 250 °C for 4 h . The modified approach was also used to produce L1 2 Ni 3 Ga and orthorhombic Ni 5 Ga 3 intermetallic nanocrystals by replacing n‐butyllithium with tert ‐butylamine‐borane (TBAB), which served as the reducing agent.…”

Section: Synthetic Approaches To Intermetallic Nanocrystalsmentioning

confidence: 99%

Intermetallic Nanocrystals: Syntheses and Catalytic Applications

et al. 2017

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At the forefront of nanochemistry, there exists a research endeavor centered around intermetallic nanocrystals, which are unique in terms of long-range atomic ordering, well-defined stoichiometry, and controlled crystal structure. In contrast to alloy nanocrystals with no elemental ordering, it is challenging to synthesize intermetallic nanocrystals with a tight control over their size and shape. Here, recent progress in the synthesis of intermetallic nanocrystals with controllable sizes and well-defined shapes is highlighted. A simple analysis and some insights key to the selection of experimental conditions for generating intermetallic nanocrystals are presented, followed by examples to highlight the viable use of intermetallic nanocrystals as electrocatalysts or catalysts for various reactions, with a focus on the enhanced performance relative to their alloy counterparts that lack elemental ordering. Within the conclusion, perspectives on future developments in the context of synthetic control, structure-property relationships, and applications are discussed.

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Section: Synthetic Approaches To Intermetallic Nanocrystalsmentioning

confidence: 99%

Intermetallic Nanocrystals: Syntheses and Catalytic Applications

et al. 2017

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“…We hypothesize that the solid-solution NPs having Co 0.9 Sn composition and Sn structure were formed initially.U pon exposure to air,t hese NPs developed aS n-rich surfacea ssociated with ad ifferential reactivity of the two elements with oxygen. [49][50][51] During the HRTEM analysis, within the electron beam, the core having ah igher Co content owing to the diffusion of Sn to the surface, crystallized into an intermetallic Co 3 Sn 2 phase with potentially additional Sn segregation on the surface.…”

Section: Resultsmentioning

confidence: 99%

Co–Sn Nanocrystalline Solid Solutions as Anode Materials in Lithium‐Ion Batteries with High Pseudocapacitive Contribution

Luo

et al. 2019

ChemSusChem

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e] T. Zhang,P .T ang,M .F .Infante-Carrió,J .A rbiol CatalanI nstitute of Nanoscience and Nanotechnology( ICN2) CSIC and BIST CampusU AB, Bellaterra, 08193 Barcelona (Spain) [f] J. Arbiol, Prof. A. Cabot ICREA Pg. LluísC ompanys 23, 08010 Barcelona (Spain) [g] J. Llorca Instituteo fEnergyT echnologies Department of Chemical Engineering and Barcelona Research Centeri n Multiscale Sciencea nd Engineering Universitat Politcnicad eC atalunya EEBE, 08019B arcelona (Spain)[ + + ] These authorscontributed equally to this work.Supporting Information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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“…Heteroatoms doping has been demonstrated as an effective strategyt oe nhancea nd enrich the properties of metal nanoparticles. [1][2][3][4][5][6][7][8] Recently,a tomically precise doping of ultra small metal nanoparticles (so-called nanoclusters)h as received extensivei nterest, owing to the subtle tuning of their compositions, structures, and properties, the in-depthu nderstandingo f the doping effect, and significant efforts have been devotedt o the doping of group 11 metal nanoclusters such as Au 25 (SR) 18 , Au 38 (SR) 24 ,A g 44 (SR) 30 and Ag 25 (SR) 18 (SR:t hiolate), among which heteroatoms alwaysr eplace the substrate atoms in ao ne to one fashion. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] Although thiolated group 10 transition metal (Ni, Pd,a nd Pt) nanoclustersh ave been known for over half a century, [25][26][27][28][29] the doped double-crown structure remainsu nraveled by single crystal X-ray crystallography (SCXC) and the doping influence on the compositions, structures, and properties of Ni, Pd, or Ptnanoclustersi sy et to be known.…”

Section: Introductionmentioning

confidence: 99%

Gold‐Doping of Double‐Crown Pd Nanoclusters

Chen

Liu

et al. 2017

Chemistry A European J

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Double-crown Ni, Pd, or Pt nanoclusters have attracted extensive interests due to their aesthetic structure and intriguing properties. However, their doping by other metals remains unknown until now. Herein, Pd (PET) and Pd (PET) (PET: SCH CH Ph) were successfully doped with gold and the doped nanoclusters were characterized by using multiple techniques such as mass spectrometry and X-ray crystallography. It is revealed that in the doping not one but two gold atoms replace one Pd with the other double-crown structure essentially unchanged, and the gold-doping results in the blue-shift of the maximum visible absorption, the increase of optical energy gap and the reduction of anti-aromaticity of monometal Pd nanoclusters. Importantly, it is found that Au Pd (PET) nanocluster bears chirality originating from not only the helixed Au Pd S framework, but also unanimous R or S configuration of sulfur atoms in the enantiomer. For the latter chirality origin, it was not previously reported or proposed. Au Pd (PET) reported here also represents the smallest chiral bimetal nanocluster so far to the best of our knowledge. This work advances one step toward both the tailoring of group 10 metal nanoclusters by doping and the understanding of chirality origin for metal nanoclusters.

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Intermetallic Ni_xM_y (M = Ga and Sn) Nanocrystals: A Non‐precious Metal Catalyst for Semi‐Hydrogenation of Alkynes

Cited by 171 publications

References 56 publications

Intermetallic Nanocrystals: Syntheses and Catalytic Applications

Intermetallic Nanocrystals: Syntheses and Catalytic Applications

Co–Sn Nanocrystalline Solid Solutions as Anode Materials in Lithium‐Ion Batteries with High Pseudocapacitive Contribution

Gold‐Doping of Double‐Crown Pd Nanoclusters

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