Yusuke Yamauchi’s research while affiliated with King Saud University and other places

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Publications (393)


3D-Printed photocatalysts for revolutionizing catalytic conversion of solar to chemical energy
  • Article

May 2025

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42 Reads

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2 Citations

Progress in Materials Science

He Lin

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Huan Qi

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Shude Liu

a) The structure of UiO‐66, b) SEM image of UiO‐66, c) XRD pattern of UiO‐66, the bottom black line is simulated pattern, and d) UV−vis absorbance spectrum and PL intensity of UiO‐66.
a) Schematic representation of the one‐step spin‐coating method for fabricating FASnI3 and FASnI3/UiO‐66 perovskite films. The plan‐view SEM images of b) as‐deposited FASnI3 and c) FASnI3/UiO‐66 perovskite films, respectively. d) XRD patterns of as‐deposited FASnI3 and FASnI3/UiO‐66 perovskite films.
Characterization of FASnI3 and FASnI3/UiO‐66 perovskite films. a) UV−vis absorbance spectra, b) Tacu plot, c) PL intensity, and d) the TRPL lifetime.
Figure 3b presents the Tauc plots of both films, revealing similar bandgap values of ≈1.42 eV for FASnI 3 and FASnI 3 /UiO-66 films. This indicates that the addition of UiO-66 does not alter the intrinsic bandgap of the FASnI 3 perovskite, ensuring that the fundamental electronic properties are maintained. Further
Binding interactions of SnI₂ and FASnI₃ with UiO‐66. a) Cluster model showing binding of SnI2 and UiO‐66 via carboxylate (A1), carboxylic (A2), bridging oxygen (A3), and hydroxyl (A4) sites with their calculated binding energies (ΔE), respectively. b) Periodic model of the FASnI₃ (100) surface interacting with UiO‐66 via carboxylate (B1), carboxylic (B2), and hydroxyl (B4) sites, highlighting preferred binding sites and charge transfer. Bond distances (Å) are shown in red, electrons transferred (e⁻) in blue, and binding energies (kcal mol⁻¹) are noted. In the binding models, atom colors: Zr (teal), Sn (mauve), I (purple), O (red), N (dark blue), C (gray), and H (white).

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Enhanced Efficiency and Stability of Tin Halide Perovskite Solar Cells Through MOF Integration
  • Article
  • Full-text available

January 2025

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21 Reads

Tin halide perovskites are promising candidates for lead‐free perovskite solar cells due to their ideal bandgap and high charge‐carrier mobility. However, poor crystal quality and rapid degradation in ambient conditions severely limit their stability and practical applications. This study demonstrates that incorporating UiO‐66, a zirconium‐based MOF, significantly enhances the performance and stability of tin halide perovskite solar cells (TPSCs). The unique porous structure and abundant carboxylate groups of UiO‐66 improve the crystallinity and film quality of FASnI₃, reduce defect density, and prolong charge carrier lifetimes. Consequently, the power conversion efficiency (PCE) of UiO‐66‐integrated TPSCs increases from 11.43% to 12.64%, and the devices maintain over 90% of their initial PCE after 100 days in a nitrogen glovebox. These findings highlight the potential of UiO‐66 in addressing the efficiency and stability challenges of tin halide perovskites.

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Mesoporous materials 2.0: innovations in metals and chalcogenides for future applications

January 2025

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21 Reads

Bulletin of the Chemical Society of Japan

Incorporating mesoporous structures into various materials can provide abundant active sites and facilitate smooth diffusion, and their effectiveness has been demonstrated across a range of material types. However, despite the development of numerous mesoporous materials, first-generation mesoporous materials (e.g., silica-based compositions) have limited applications due to their poor electrical conductivity and limited compositional diversity, necessitating additional processing for widespread utilization. Our group first proposed the synthesis of mesoporous metals using a solution-based soft-templating method based on self-assembly of micelles, marking a significant advancement in mesoporous materials. This effective process has recently been extended to the synthesis of mesoporous metals and chalcogenides. Chalcogenides have garnered significant attention due to their intriguing optical, electrical, and electrochemical properties arising from their distinctive electronic structures. Mesoporous chalcogenides have been found to effectively enhance these properties. This paper provides a comprehensive review of the synthesis of mesoporous metals and chalcogenides—representing second-generation mesoporous materials (mesoporous materials 2.0)—with specific examples. Our goal is to inform readers about second-generation mesoporous materials and provide insights for further research.


Additives‐Modified Electrodeposition for Synthesis of Hydrophobic Cu/Cu2O with Ag Single Atoms to Drive CO2 Electroreduction

Copper‐based electrocatalysts are recognized as crucial catalysts for CO2 electroreduction into multi‐carbon products. However, achieving copper‐based electrocatalysts with adjustable valences via one‐step facile synthesis remains a challenge. In this study, Cu/Cu2O heterostructure is constructed by adjusting the anion species of the Cu ions‐containing electrolyte during electrodeposition synthesis. Then, Cu/Cu2O with tuned nanoarchitectures ranging from dendrites to polyhedrons is achieved by introducing transition metal ions as additives, leading to an adjustable interfacial microenvironment for CO2/H2O adsorption on the Cu/Cu2O electrodes. Additionally, the polyhedral Cu/Cu2O catalysts are used as templates for depositing Ag single atoms (AgSA), which are known as synergistic active sites for promoting *CO to *COH toward C2+ products. The prepared AgSA‐Cu/Cu2O catalyst is evaluated in a flow cell and exhibited a FEC2+ of 90.2% and a partial current density (jc2+) of 426.6 mA cm⁻² for CO2 electroreduction. As revealed by in situ Raman spectra and density functional theory calculations, the introduction of Ag single atoms slows down the reduction of Cu⁺ during CO2 electroreduction, especially at a high current density. This work provides a promising paradigm for diverse control of the compositions and hydrophobicity of Cu‐based catalysts for selective CO2 electroreduction to C2+ products.




Expression of concern: Reduced graphene oxide nanosheets decorated with Au, Pd and Au–Pd bimetallic nanoparticles as highly efficient catalysts for electrochemical hydrogen generation

January 2025

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73 Reads

Journal of Materials Chemistry A

Expression of concern for ‘Reduced graphene oxide nanosheets decorated with Au, Pd and Au–Pd bimetallic nanoparticles as highly efficient catalysts for electrochemical hydrogen generation’ by Gitashree Darabdhara et al. , J. Mater. Chem. A , 2015, 3 , 20254–20266, https://doi.org/10.1039/C5TA05730B.




Citations (41)


... This method calculates interactions among particles, as well as between the fluid and particles, across multiple physical fields. It ensures that particle sizes are smaller than the minimum grid size of the flow field numerical model while meeting the necessary accuracy for calculations [66,67]. ...

Reference:

Study on the Bubble Collapse Characteristics and Heat Transfer Mechanism of the Microchannel Reactor
3D-Printed photocatalysts for revolutionizing catalytic conversion of solar to chemical energy
  • Citing Article
  • May 2025

Progress in Materials Science

... 9,10 Despite CuPc's immense potential, conventional modification and integration methods often rely on physical or chemical exfoliation techniques that, while effective for a wide range of two-dimensional materials, frequently compromise its structural and compositional integrity, ultimately affecting performance in downstream applications. 11 Mechanical exfoliation methods, such as adhesive tape cleavage or controlled shear under inert conditions, facilitate the isolation of pristine nanosheets but are inherently low-yield, labor-intensive, and unsuitable for large-scale applications. 12 Ultrasonic exfoliation employs high-frequency acoustic waves in organic solvents or surfactant solutions to overcome interlayer van der Waals forces, yielding amorphous ultrathin nanosheets. ...

Porphyrins-based multidimensional nanomaterials: Structural design, modification and applications
  • Citing Article
  • January 2025

Coordination Chemistry Reviews

... Mesoporous silica and various nanoporous materials possess unique functions due to their high specific surface area and controlled nano-space structures [302][303][304]. Research has been conducted on forming LbL assemblies in such porous structures [305,306], and there are also studies on organizing nanoporous materials themselves [307,308] by LbL assembly. ...

Extraordinary 99Mo Adsorption: Utilizing Spray-Dried Mesoporous Alumina for Clinical-Grade Generator Development
  • Citing Article
  • October 2024

Bulletin of the Chemical Society of Japan

... The use of metals and metals alloys supported on 2d nanostructures is a promising technique to enhance many electrocatalytic reactions. [14][15][16] The ranking of the HER activity of Ni-based binary alloys is Ni-Mo > Ni-Zn > Ni-Co > Ni-W > Ni-Fe > Ni-Cr. 17 The activity and the benecial impacts of the two metals, Ni and Mo, have led to a great deal of work being put into the production and assessment of Ni-Mo alloys. ...

Strong interaction heterointerface of NiFe oxyhydroxide/cerium oxide for efficient and stable water oxidation
  • Citing Article
  • October 2024

Chemical Engineering Journal

... Electrochemical methods offer not only high selectivity and environmental friendliness but also distinct advantages in ease of management, low waste production, and high lithium recovery [13,50,51]. [52,54] The performance of the electrochemical lithium recovery process is assessed by key parameters such as the lithium selectivity coefficient, Li separation factor, Salt Adsorption Capacity, and specific energy consumption. These parameters are expressed by the mathematical model below, taking into account the concentration and mass ratio of coexisting ions in the feed solution [4,55,56]. ...

Insights into electrochemical paradigms for lithium extraction: Electrodialysis versus capacitive deionization
  • Citing Article
  • October 2024

Coordination Chemistry Reviews

... In these materials, internal convection usually occurs when pore sizes exceed one millimeter [76]; see Figure 3. Therefore, enhancing convection efficiency can be achieved by integrating designed porosity or internal channels that facilitate fluid flow [71]. This approach is particularly beneficial in applications such as heat exchangers, thermal insulation systems, and cooling structures where efficient heat transfer is critical [77]. Deliberately tailored porosity, including the precise control of pore size, shape, and distribution, enables optimization of heat transfer rates and thermal management efficiency in these systems [78]. ...

Strategic Design of Porous Interfacial Evaporators: A Comprehensive Review Unveiling the Significant Role of Pore Engineering
  • Citing Article
  • September 2024

Nano Energy

... MOFs are crystalline materials composed of metal ions coordinated to organic ligands, forming porous structures with diverse chemical functionalities. [32][33][34] The unique properties of MOFs, such as large surface area, tunable pore size, and rich chemical coordination sites, make them potential candidates for improving the crystallization process and protecting perovskite films from environmental degradation. [35][36][37] Notably, the functional groups on MOFs can interact with perovskite materials at the molecular level, potentially creating strong coordination bonds or hydrogen bonds that improve film integrity and reduce defect density. ...

Nanoengineering Multilength-Scale Porous Hierarchy in Mesoporous Metal-Organic Framework Single Crystals
  • Citing Article
  • August 2024

ACS Nano

... In this method, the base MXene and the other phase distribution are used in the liquid phase to prepare MXene under hydrothermal conditions. This method helps in enhancing the material activities through surface functionality with the aid of high temperature and pressure [81][82][83][84][85][86]. Hydrothermal synthesis enhances MXene properties by improving surface functionalization (e.g., -OH, -O), and boosts electrochemical performance in energy storage. ...

Moisture Power Generation: From Material Selection to Device Structure Optimization
  • Citing Article
  • July 2024

ACS Nano

... [35] Additionally, incorporating light alloying atoms (such as H, B, C, and N) into noble metal lattices leads to lattice expansion, which is crucial for optimizing catalytic performance by adjusting both structural and electronic properties. [36][37][38] Simultaneously, hybridization between the s and p orbitals of light atoms (especially H atoms) and the metal atoms is thought to lower the d-band center of the host metal, enhancing surface chemisorption and catalytic properties in interstitial alloy catalysts. [36,39] Generally, the morphological tuning is another effective strategy to improve the active surface area and electrocatalytic activity. ...

Carbon nanofiber catalysts containing high-entropy metal phosphides with low-content Ru for highly efficient hydrogen evolution reaction
  • Citing Article
  • July 2024

Rare Metals

... Covalent organic frameworks (COFs), which are composed of organic units linked through covalent bonds to form porous structures, have also garnered significant interest [328][329][330]. The synthesis of multilayered COF structures has been reported [331,332], with particular attention being directed towards their potential applications in the energy sector. ...

Sulfonate-Functionalized Covalent Organic Frameworks for Capacitive Deionization
  • Citing Article
  • July 2024

Bulletin of the Chemical Society of Japan