Seiji Yamazoe’s research while affiliated with Tokyo Metropolitan University and other places

... 13 One of the four true M 55 species is Dahl's [Pd 55 (P i Pr 3 ) 12 (µ 3 -CO) 20 12 ] q (q unknown). 17 The fourth example is the N-heterocyclic carbene-protected (NHC-protected) nanocluster [Cu 55 (IDipp) 6 ] (IDipp = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, see Scheme 1), made by one of us, 18 and shown in Fig. 2. This latter species is unique for several reasons. ...

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How many electrons to stabilize the icosahedral Cu 55 core in ligated nanoclusters? The example of [Cu 55 (NHC) 6 ]

... In turn, the precisely defined structures of these alloy nanoclusters make them ideal platforms for investigating the interactions between metals at the atomic level [21,22]. Therefore, the controllable preparation [23,24], precise characterization [25,26], and application [27][28][29][30] of alloy nanoclusters are essential for advancing this research field. To date, several bimetallic nanoclusters with customized structures and compositions have been successfully synthesized and structurally characterized [19,[31][32][33][34][35][36][37][38]. ...

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A Phosphorescent Silver-Copper Nanocluster with a Saddle-Like Stabilizing Surface

... 23 Additionally, the multiple lacunar building blocks of POMs facilitate the formation of transition metal clusters when using highnuclear POMs. 44 Beginning with simple oxyoctahedra and their oligomers, POMs can self-assemble under specific conditions into multinuclear giant clusters with diverse shapes, such as sandwiches, 45 rings, 46 and wheels. 47 These clusters display novel properties that are not present in mononuclear POMs, thereby expanding the possibilities for further research and applications. ...

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Polyoxometalates for the Catalytic Reduction of Nitrogen Oxide and Derivatives: From Novel Structures to Functional Applications

... While their framework usually consists of Mo or W, many other transition elements, and to a lesser extent also main group elements, can be incorporated [1][2][3][4][5][6][7][8][9][10]. Applications of POMs range from the biomedical field [11][12][13][14][15] to molecular magnetism and spintronics [16,17] and catalysis [1,[18][19][20][21][22][23][24][25][26][27]. The most prominent application of transition metal-substituted POMs (with different transition metals in the framework position) is the catalysis of selective biomass oxidation [22,[27][28][29][30]. ...

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The Synthesis and Characterisation of Ru(III)-Substituted Keggin-Type Phosphomolybdates

... Notably, there has been remarkable progress in the development of iron phosphide catalysts. The iron phosphide catalyst demonstrates high activity, air stability, and durability for the nitrile hydrogenation, while the conventional iron nanoparticle catalysts exhibit no activity under the same conditions [137]. Although this represents a significant step forward in phosphide catalyst technology, it is part of an ongoing journey of discovery and improvement. ...

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Air-Stable and Highly Active Transition Metal Phosphide Catalysts for Reductive Molecular Transformations

... In electronics, gallium oxides are used in UV photodetectors (Wang et al. 2023a;Chen et al. 2025), high-power transistors , or Schottky diodes (Polyakov et al. 2018;Bhandari et al. 2019;Polyakov et al. 2019;Ku et al. 2024). Gallium oxides are also applied in environmental and energy sectors, as in methane conversion for production of ethane and hydrogen (Amano et al. 2024), in oxidation to CO 2 (Tran et al. 2025;Liu et al. 2025), water splitting Ammar Hassan Shah et al. 2025), and catalysis and photocatalysis (Orozco et al. 2023). Photocatalysis is a promising method for environmental remediation and energy conversion applications because it can degrade organic pollutants using an unlimited source: solar energy. ...

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Simulation and experimentation of iron-doped liquid metal-based gallium oxide photocatalysts for environmental applications harnessing solar energy

... [127] Under appropriate conditions, compounds and cellulose can form crystalline domains. [128] Cellulose and chitosan can form semi-crystalline polymer networks with crystalline domains after being treated with strong acid or alkali solutions. [129] Polyvinyl alcohol and polyethylene glycol are typical synthetic polymers that can form crystalline domains due to the hydrogen bond interactions of hydroxyl groups. ...

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Cellulosic Triboelectric Elastomers for Energy Harvesting and Emerging Applications

... Recently, we synthesized surface-exposed Ag nanoclusters encapsulated within ring-shaped POMs, which effectively protect the nanoclusters from undesirable aggregation and decomposition. [36] Specifically, the ring-shaped POM [P 8 W 48 O 184 ] 40− (P8W48), [37] which features a spacious cavity (∼1 nm in diameter) surrounded by abundant oxygen atoms, has previously been employed as a molecular template for incorporating various metal oxide clusters. [38] Initially, we synthesized P8W48 (Ag16), a complex containing 16 Ag + ions, by reacting the TBA salt of P8W48 with Ag acetate (Figure 5a). ...

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Recent Advances in Polyoxometalate‒Metal Nanocluster Hybrids

... Since these dynamic processes generally involve changes in crystal structures and/or lattice constants, time-resolved X-ray diffraction (Tr-XRD) is a powerful probing technique. Tr-XRD enables the observation of continuous crystal structure changes [1][2][3][4][5][6][7][8][9] . In this study, we focus on the adsorption process of gas molecules in a metal-organic framework (MOF) [6][7][8] . ...

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Bayesian framework for analyzing adsorption processes observed via time-resolved X-ray diffraction

... We believe the development of new processes in this area can be inspired by traditional photocatalytic water splitting or CO 2 reduction reactions utilizing sacrificial reagents (SR), e.g., amines, alcohols, and thiols [16][17][18][19][20] . Clearly, the potential of obtaining value-added products from the oxidation of SR has not been fully exploited. ...

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Photocatalytic synthesis of ethylene glycol and hydrogen from methyl tert-butyl ether