Polysulfide chelates. II. Desulfuration of PtS152- and the synthesis of PtS102-

Wickenden, Adrienne E.; Krause, Ronald A.

doi:10.1021/ic50074a016

Cited by 34 publications

(14 citation statements)

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“…To start with, the Pt polysulfide precursor and Ag nanoparticles (Ag) could be synthesized as described in previous reports [13][14][15][16][17] . Then, the ligand exchange reaction was initiated between Pt polysulfide and Ag nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

The Synthesis of Low Pt loading Ag_core- Pt atoms-exposed_shell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

Zhu

Luan

et al. 2022

J. Phys.: Conf. Ser.

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Platinum-based nanomaterials are well-known to show excellent hydrogen evolution reaction (HER) catalytic performance. The sophisticated structural design facilitates the development of related disciplines such as water splitting devices. Here, a kind of Agcore- Pt atoms-exposedshell structure could be synthesized through ligand exchange between Ag nanoparticles and Pt polysulfide precursor at room temperature (RT). The Ag core maintains its face-centered cubic phase (FCC) crystal phase after the formation of Agcore- Pt atoms-exposedshell structure. While Pt atoms account for only 0.4617 percent of the catalyst mass. With a further electrochemical reduction of Pt (IV) atoms into metallic state Pt (0) atoms from -1.2 V vs. RHE to 0.4 V vs. RHE, the HER catalytic performance of Agcore- Pt atoms-exposedshell would exceed that of commercial 20% Pt/C at low potentials (<-0.487 V vs. RHE). Furthermore, we found the HER performance is stable, which verifies that the Pt polysulfide is tightly bound to the surface of Ag. Specifically, the present approach shows great potential for the construction of nanostructure with high atomic utilization.

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Section: Resultsmentioning

confidence: 99%

The Synthesis of Low Pt loading Ag_core- Pt atoms-exposed_shell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

Zhu

Luan

et al. 2022

J. Phys.: Conf. Ser.

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“…The synthesis of Pt-, Co-, and Ni-based thiometallates was conducted using a modified version of the reported synthetic route for thioplatinate. 28 Typically, aqueous solutions of metal ions were reacted with ammonium polysulfide at near room temperature. Thioferrite was synthesized by an alternative route in which FeCl 2 precursor was reacted with elemental S in the presence of Na as a reducing agent.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…For example, this ratio in thioferrite and thioplatinate analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES) is 1:6 and 1:15, respectively, corresponding to literature values. 28,29 On the other hand, thiocobaltate and thionickelate synthesized by the modified route for thioplatinate showed the respective ratios of 1:9 and 1:6. The synthesized compounds were characterized by UV−vis absorption spectroscopy.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Transition Metal-Based Thiometallates as Surface Ligands for Functionalization of All-Inorganic Nanocrystals

Jeong¹,

Yoon²,

Kim³

et al. 2017

Chem. Mater.

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We report a new family of inorganic ligands, namely, transition metal-based thiometallates, for the surface functionalization of colloidal nanocrystals (NCs). We synthesized Pt-, Fe-, Co-, and Ni-based thiometallates, in which transition metal ions were complexed with polysulfides. These inorganic anions easily exchanged the surface organic ligands of various nanocrystals of metal, semiconductor, and oxide materials, without affecting the NCs' primary structural and optical characteristics. Furthermore, upon heating, these complexes were decomposed and transformed into crystalline phases of metal sulfides or pure metals, accompanied by the evaporation of S. Based on this effect, we selectively synthesized homogeneously distributed atomic Pt clusters or Pt nanoparticles on Fe 3 O 4 nanomaterials by heating thioplatinatecapped Fe 3 O 4 NCs. As a model application, we tested the prepared Ptfunctionalized Fe 3 O 4 nanomaterial as a heterogeneous catalyst for CO oxidation reaction and Pt−Fe 3 O 4 catalysts exhibited the high turnover frequency due to the homogeneous distribution of atomic Pt over Fe 3 O 4 and the corresponding strong metal−support interaction. This approach opens up a new avenue to functionalize nanocrystals for catalytic applications.

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“…WICKENDEN und KRAUSE [4] dehnten diesen Reaktionstyp erstmals auf einen Polysulfidring mit Heteroatom Bus. Die Autoren setzten das von HOFMANN und HOCHTLEN [5] synthetisierte Tris(pentasulfido)platinat(IV), [Pt(S,),12-, (I), mit Cyanid urn.…”

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Zum nukleophilen Abbau von Tris(pentasulfido)platinat(IV), [Pt(S₅)₃]²⁻, und Bis(pentasulfido)platinat(II),[Pt(S₅)₂]²⁻

Schmidt¹,

Hoffmann²

1979

Zeitschrift anorg allge chemie

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Das Verhalten von [Pt(S5)3]2−, (I), gegenüber Sulfit, Arsenit, Sulfid, Hydroxid und Triphenylphosphin wird qualitativ und quantitativ untersucht. Mit stöchiometrischen Mengen an Nukleophil wird ein Ring abgebaut; als Reaktionsprodukt kann [Pt(S5)2]2−, (II), isoliert werden. Mit Überschuß an Nukleophil werden alle Schwefelatome vom Platin abgelöst; mit Triphenylphosphin entsteht dagegen (PPh3)2PtS4, (III). Der Reaktionsablauf wird mechanistisch gedeutet und durch kinetische Untersuchungen erhärtet.

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Polysulfide chelates. II. Desulfuration of PtS152- and the synthesis of PtS102-

Cited by 34 publications

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The Synthesis of Low Pt loading Ag_core- Pt atoms-exposed_shell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

The Synthesis of Low Pt loading Ag_core- Pt atoms-exposed_shell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

Transition Metal-Based Thiometallates as Surface Ligands for Functionalization of All-Inorganic Nanocrystals

Zum nukleophilen Abbau von Tris(pentasulfido)platinat(IV), [Pt(S₅)₃]²⁻, und Bis(pentasulfido)platinat(II),[Pt(S₅)₂]²⁻

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Polysulfide chelates. II. Desulfuration of PtS152- and the synthesis of PtS102-

Cited by 34 publications

References 0 publications

The Synthesis of Low Pt loading Agcore- Pt atoms-exposedshell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

The Synthesis of Low Pt loading Agcore- Pt atoms-exposedshell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

Transition Metal-Based Thiometallates as Surface Ligands for Functionalization of All-Inorganic Nanocrystals

Zum nukleophilen Abbau von Tris(pentasulfido)platinat(IV), [Pt(S5)3]2−, und Bis(pentasulfido)platinat(II),[Pt(S5)2]2−

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The Synthesis of Low Pt loading Ag_core- Pt atoms-exposed_shell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

The Synthesis of Low Pt loading Ag_core- Pt atoms-exposed_shell Structure by Ligand Exchange Method with High Electrocatalytic Performance for Hydrogen Evolution Reaction

Zum nukleophilen Abbau von Tris(pentasulfido)platinat(IV), [Pt(S₅)₃]²⁻, und Bis(pentasulfido)platinat(II),[Pt(S₅)₂]²⁻