Phase-transfer interface promoted corrosion from PtNi10 nanoctahedra to Pt4Ni nanoframes

Wang, Yu; Chen, Yueguang; Nan, Caiyun; Li, Lingling; Wang, Dingsheng; Peng, Qing; Li, Yadong

doi:10.1007/s12274-014-0603-z

Cited by 52 publications

(26 citation statements)

References 50 publications

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“…2.1 nm in diameter or PtNi 4 porous octahedra under a novel twophase approach employing high or low concentrations of ethylenediaminetetraacetic acid disodium salt, respectively [154]. In this approach, the upper oil phase comprises a toluene solution containing OAm and OAm-capped PtNi 10 nanoctahedra, with a lower aqueous phase consisting of ethylenediaminetetraacetic acid disodium salt aqueous solution.…”

Section: Ptni Multimetallic Nanocrystalsmentioning

confidence: 99%

Solvothermal synthesis of metal nanocrystals and their applications

et al. 2015

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Section: Ptni Multimetallic Nanocrystalsmentioning

confidence: 99%

Solvothermal synthesis of metal nanocrystals and their applications

et al. 2015

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“…Ag nanosheets, chainlike sheets and microwires can be easily generated via an ammoniaassisted Ostwald ripening mechanism. 28,29 Crystal nucleation, growth, and Ostwald ripening can be reconciled theoretically via a model based on the kinetic rate equation (Fig. 23 A clean surface structure can easily undergo Ostwald ripening because of the lack of protecting ligand on the surface.…”

Section: Ostwald Ripeningmentioning

confidence: 99%

Nanostructure formation via post growth of particles

Wang

2015

CrystEngComm

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Post growth of particles will lead to new nanostructure formation, and blur the boundaries of crystal growth and molecular chemistry as well. The driving force of post growth usually stems from the inherent stabilities of the nanoparticles (NPs) and the environmental changes, which results in the transformation of the pristine nanostructures. One type of post growth driven by thermodynamic stability is Ostwald ripening, which usually leads to the elimination of small particles, and can be utilized to prepare hollow structures. By sophisticatedly controlling the reaction conditions, the NPs may undergo oriented attachment to form nanostructures with more complexity. This process is different from the random aggregation of nanoparticles; the final morphologies can be ingeniously controlled, and the kinetics resemble polymerization in some cases. If the chemical bonding during the oriented attachment process is replaced by non-covalent bonding, self-assembly of the NPs is achieved. Self-assembly of NPs further extends the diversity of nanostructures, as well as the understanding of crystallization. Post growth of particles is also a feasible strategy to fabricate heterostructures. The wetting behaviour sheds light on the final morphologies of the heterostructures. Meanwhile, seed mediated growth enables an alternative method to control pre-formed NPs. Another heterostructure of atomically-thin layered sheets connected via van der Waals forces also extends the potential of nanomaterials. The driving forces of the post growth of particles are divergent, and the applications are various. It can be utilized to prepare homogeneous and heterogeneous structures. CrystEngCommThis journal is

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“…Nano Res. 2016, 9(4): 1209-1219 in these organic catalytic reactions, condensed noble metal nanocrystals combined with sulfides utilize only a small portion of the catalyst surface that is active [24,25]. It is vital to exploit a new and distinctive method using a metal-sulfide complex that can "disperse" an elemental metal into a sulfide substrate.…”

Section: Introductionmentioning

confidence: 99%

Pd-dispersed CuS hetero-nanoplates for selective hydrogenation of phenylacetylene

et al. 2016

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We have exploited a new and distinctive combination method that "disperses" elemental Pd into CuS nanoplates. Pd was successfully dispersed by means of the concomitant transformation of CuS into an amorphous sulfide, which formed an intimate metal-sulfide contact via cation exchange and underwent a subsequent reduction. A series of such Pd-dispersed CuS hetero-nanoplates were synthesized with tailored proportions and compositions. By efficient utilization of noble metal atoms and stable anchored active sites, the optimal catalytic performance for the semihydrogenation of phenylacetylene, a probe reaction, was achieved with high selectivity, activity, and stability. We believe that the synthetic strategy described in our study is a feasible means of developing effective metal-sulfide catalysts for organic reactions.

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Phase-transfer interface promoted corrosion from PtNi10 nanoctahedra to Pt4Ni nanoframes

Cited by 52 publications

References 50 publications

Solvothermal synthesis of metal nanocrystals and their applications

Solvothermal synthesis of metal nanocrystals and their applications

Nanostructure formation via post growth of particles

Pd-dispersed CuS hetero-nanoplates for selective hydrogenation of phenylacetylene

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