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View article: Efficient hydrogen evolution from sodium borohydride catalysed by amine-decorated cross-linked polymer immobilised ionic liquid stabilised palladium nanoparticles
Efficient hydrogen evolution from sodium borohydride catalysed by amine-decorated cross-linked polymer immobilised ionic liquid stabilised palladium nanoparticles Open
Palladium nanoparticles (PdNP) stabilised by confinement in crosslinked amine-decorated, polymer-immobilised ionic liquids (PIILs) catalyse the hydrolytic evolution of hydrogen from NaBH 4 under mild conditions. A series of three PIIL supp…
View article: The case against hole injection through SAMs in perovskite solar cells
The case against hole injection through SAMs in perovskite solar cells Open
This study challenges HOMO level engineering approaches to SAM design by demonstrating that this leads to reduced quasi-Fermi level splitting in the perovskite and thus lower open-circuit voltage and performance.
View article: Mechanochemical Polyoxometalate Super-Reduction with Lithium Metal
Mechanochemical Polyoxometalate Super-Reduction with Lithium Metal Open
In this first systematic investigation of mechanochemical polyoxometalate (POM) reduction, (TBA)3[PMo12O40] was reacted with n equiv of lithium metal (n = 1-24) to generate PMo12/n products which were shown to be mixtures of electron-rich …
View article: Illuminating the Devolution of Perovskite Passivation Layers
Illuminating the Devolution of Perovskite Passivation Layers Open
Surface treatment of perovskite materials with their layered counterparts has become an ubiquitous strategy for maximizing device performance. While layered materials confer great benefits to the longevity and long‐term efficiency of the r…
View article: Efficient Hydrogen Evolution from Dimethylamine Borane, Ammonia Borane and Sodium Borohydride Catalyzed by Ruthenium and Platinum Nanoparticles Stabilized by an Amine Modified Polymer Immobilized Ionic Liquid: a Comparative Study
Efficient Hydrogen Evolution from Dimethylamine Borane, Ammonia Borane and Sodium Borohydride Catalyzed by Ruthenium and Platinum Nanoparticles Stabilized by an Amine Modified Polymer Immobilized Ionic Liquid: a Comparative Study Open
Platinum and ruthenium nanoparticles stabilised by an amine modified polymer immobilised ionic liquid (MNP@NH 2 -PEGPIILS, M = Pt, Ru) catalyse the hydrolytic liberation of hydrogen from dimethylamine borane (DMAB), ammonia borane (AB) and…
View article: Amine-modified polyionic liquid supports enhance the efficacy of PdNPs for the catalytic hydrogenation of CO<sub>2</sub> to formate
Amine-modified polyionic liquid supports enhance the efficacy of PdNPs for the catalytic hydrogenation of CO<sub>2</sub> to formate Open
Highly efficient hydrogenation of CO 2 to formate catalysed by palladium nanoparticles stabilised by aniline modified polymer immobilised ionic liquid.
View article: Understanding the Origin of the Nonpassivating Behavior of Si-Based Anodes during the Initial Cycles
Understanding the Origin of the Nonpassivating Behavior of Si-Based Anodes during the Initial Cycles Open
In this contribution, we combined electrochemical cycling and X-ray photoelectron spectroscopy (XPS) to understand the nonpassivating behavior of the solid electrolyte interphase (SEI) on Si anodes during the first cycles. Based on galvano…
View article: Novel chalcogenides, pnictides and defect-tolerant semiconductors: general discussion
Novel chalcogenides, pnictides and defect-tolerant semiconductors: general discussion Open
David O. Scanlon opened a discussion of the paper by Mirjana Dimitrievska: Thank you for the very nice talk Mirjana! Zn and P on their own are toxic and earth abundant, but when together as Zn3P2, they make a very potent rat poison. Are yo…
View article: Heterostructured Lepidocrocite Titanate-Carbon Nanosheets for Electrochemical Applications
Heterostructured Lepidocrocite Titanate-Carbon Nanosheets for Electrochemical Applications Open
Lepidocrocite-type titanates that reversibly intercalate sodium ions at low potentials (~0.6 V vs Na/Na+) are promising anode candidates for sodium-ion batteries. However, large amounts of carbon additives are often used to improve their e…
View article: Stable SEI Formation on Al-Si-Mn Metallic Glass Li-Ion Anode
Stable SEI Formation on Al-Si-Mn Metallic Glass Li-Ion Anode Open
Alloying anodes such as silicon are of great interest for lithium-ion batteries due to their high lithium-ion storage capacities, but have only seen minimal commercial deployment due to their limited calendar life. This has been attributed…
View article: Accelerating the development of new solar absorbers by photoemission characterization coupled with density functional theory
Accelerating the development of new solar absorbers by photoemission characterization coupled with density functional theory Open
The expectation to progress towards Terawatts production by solar technologies requires continuous development of new materials to improve efficiency and lower the cost of devices beyond what is currently available at industrial level. At …
View article: High Current Cycling in a Superconcentrated Ionic Liquid Electrolyte to Promote Uniform Li Morphology and a Uniform LiF-Rich Solid Electrolyte Interphase
High Current Cycling in a Superconcentrated Ionic Liquid Electrolyte to Promote Uniform Li Morphology and a Uniform LiF-Rich Solid Electrolyte Interphase Open
High-energy-density systems with fast charging rates and suppressed dendrite growth are critical for the implementation of efficient and safe next-generation advanced battery technologies such as those based on Li metal. However, there are…
View article: Enhanced Interfacial Stability of Si Anodes for Li-Ion Batteries via Surface SiO<sub>2</sub> Coating
Enhanced Interfacial Stability of Si Anodes for Li-Ion Batteries via Surface SiO<sub>2</sub> Coating Open
Silicon is a promising alloying anode for lithium-ion batteries owing to its high capacity and low cost. However, its use has been hampered by mechanical failure arising from the large volume change upon cycling and by an insufficiently st…
View article: Nonpassivated Silicon Anode Surface
Nonpassivated Silicon Anode Surface Open
A stable solid electrolyte interphase (SEI) has been proven to be a key enabler to most advanced battery chemistries, where the reactivity between the electrolyte and the anode operating beyond the electrolyte stability limits must be kine…
View article: Surface SiO<sub>2</sub> Thickness Controls Uniform-to-Localized Transition in Lithiation of Silicon Anodes for Lithium-Ion Batteries
Surface SiO<sub>2</sub> Thickness Controls Uniform-to-Localized Transition in Lithiation of Silicon Anodes for Lithium-Ion Batteries Open
Silicon is a promising anode material for lithium-ion batteries because of its high capacity, but its widespread adoption has been hampered by a low cycle life arising from mechanical failure and the absence of a stable solid-electrolyte i…
View article: Towards high rate Li metal anodes: enhanced performance at high current density in a superconcentrated ionic liquid
Towards high rate Li metal anodes: enhanced performance at high current density in a superconcentrated ionic liquid Open
Application of high current density demonstrated enhanced cycling efficiency and the formation of a stable and LiF dominated SEI providing a new path to enable fast charge battery technologies.
View article: Electron scattering mechanisms in polycrystalline sputtered zinc tin oxynitride thin films
Electron scattering mechanisms in polycrystalline sputtered zinc tin oxynitride thin films Open
Zinc tin nitride (ZnSnN2) is an emerging ternary nitride semiconductor studied for applications in solar cells, light-emitting diodes, and other optoelectronic devices. For all of these applications, the charge carrier mobility is an impor…
View article: Zn<sub>2</sub>SbN<sub>3</sub>: growth and characterization of a metastable photoactive semiconductor
Zn<sub>2</sub>SbN<sub>3</sub>: growth and characterization of a metastable photoactive semiconductor Open
Zn2SbN3 is the first Sb-based crystalline nitride and a photoactive semiconductor.
View article: A Map of the Inorganic Ternary Metal Nitrides
A Map of the Inorganic Ternary Metal Nitrides Open
Exploratory synthesis in novel chemical spaces is the essence of solid-state chemistry. However, uncharted chemical spaces can be difficult to navigate, especially when materials synthesis is challenging. Nitrides represent one such space,…
View article: High Efficiency Si Photocathode Protected by Multifunctional GaN Nanostructures
High Efficiency Si Photocathode Protected by Multifunctional GaN Nanostructures Open
Photoelectrochemical water splitting is a clean and environmentally friendly method for solar hydrogen generation. Its practical application, however, has been limited by the poor stability of semiconductor photoelectrodes. In this work, w…
View article: Redox-Mediated Stabilization in Zinc Molybdenum Nitrides
Redox-Mediated Stabilization in Zinc Molybdenum Nitrides Open
We report on the theoretical prediction and experimental realization of new ternary zinc molybdenum nitride compounds. We used theory to identify previously unknown ternary compounds in the Zn-Mo-N systems, Zn3MoN4 and ZnMoN2, and to analy…
View article: Band Edge Positions and Their Impact on the Simulated Device Performance of ZnSnN2-Based Solar Cells
Band Edge Positions and Their Impact on the Simulated Device Performance of ZnSnN2-Based Solar Cells Open
ZnSnN2 (ZTN) has been proposed as a new earth abundant absorber material for PV applications. While carrier concentration has been reduced to values suitable for device implementation, other properties such as ionization potential, electro…
View article: Thermodynamic Routes to Novel Metastable Nitrogen-Rich Nitrides
Thermodynamic Routes to Novel Metastable Nitrogen-Rich Nitrides Open
Compared to oxides, the nitrides are relatively unexplored, making them a promising chemical space for novel materials discovery. Of particular interest are nitrogen-rich nitrides, which often possess useful semiconducting properties for e…
View article: Valence band modification of Cr<sub>2</sub>O<sub>3</sub>by Ni-doping: creating a high figure of merit p-type TCO
Valence band modification of Cr<sub>2</sub>O<sub>3</sub>by Ni-doping: creating a high figure of merit p-type TCO Open
In Cr2O3, Ni is a more effective dopand than Mg due to its higher solubility and its capability to contribute to the VB, improving holes dispersion.
View article: Raman spectra of p-type transparent semiconducting Cr2O3:Mg
Raman spectra of p-type transparent semiconducting Cr2O3:Mg Open
\n\nWe present an analysis of the Raman spectra of p-type transparent conducting Cr2O3:Mg grown by various techniques including spray pyrolysis, pulsed laser deposition, molecular beam epitaxy and reactive magnetron sputtering. The best pe…