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Brillouin-Mandelstam spectroscopy of stress-modulated spatially confined spin waves in Ni thin films on piezoelectric substrates
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Unexpected deformation-induced martensitic phase transformations in Ni–Cr and Ni–Cr–Fe alloys
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Roles of Mn and Ni in Li-rich Mn-Ni-Fe oxide cathodes
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Tailoring the thermal stability of nanocrystalline Ni alloy by thick grain boundaries
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Framework Doping of Ni Enhances Pseudocapacitive Na-Ion Storage of (Ni)MnO[subscript 2] Layered Birnessite
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Mechanistic Study of Ni(II) Sorption by Green Rust Sulfate
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Corrosion Characteristics of Typical Ni–Cr Alloys and Ni–Cr–Mo Alloys in Supercritical Water: A Review
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Magneto-structural Correlations in Ni 2+ –Halide···Halide–Ni 2+ Chains
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Adsorption Properties of Au−Ni Surface Alloys with a Nonstoichiometric Moiré Structure: A Density Functional Theory Study
Due to the large lattice mismatch between gold and nickel, gold–nickel surface alloys can form unique nonstoichiometric overlayer structures characterized by a moiré pattern and subsurface defects. For this work, we performed density functional theory (DFT) calculations to study the adsorption of molecular oxygen, atomic hydrogen, and atomic carbon on a gold–nickel(111) surface alloy with 0.46 monolayer gold randomly distributed in the surface layer. We observed six distinct adsorption structures for molecular oxygen characterized by intramolecular stretching frequencies of <700, 729, 795, 857, 929, and 1004 cm –1 , which describe well the experimentally observed high-resolution electron energy-loss spectra. Surface atomic hydrogen adsorption is associated with adsorbate–surface modes in the ∼1000 cm –1 range, while subsurface hydrogen can have features as low as ∼400 cm –1 . We observed a unique adsorption structure for atomic carbon inside the surface dislocation loop defect, which explains the experimentally observed low carbon-surface mode at ∼340 cm –1 . Our study sheds light on the unique adsorption properties of the gold–nickel surface alloys and helps with rationalizing vibrational frequency experimental studies for this system.
Unmasking the Latent Passivating Roles of Ni(OH)2 on the Performance of Pd-Ni Electrocatalysts for Alkaline Ethanol Fuel Cells
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A Superior Carbonate Electrolyte for Stable Cycling Li Metal Batteries Using High Ni Cathode
Li metal batteries pairing Li metal anode with high-nickel layer structured oxide cathode are a promising energy storage technology to achieve high energy density. To obtain long cycling life for Li metal batteries, the electrolyte plays a pivotal role in stabilizing both the Li metal anode and the high-nickel cathode upon electrochemical cycling. Herein, we report a carbonate electrolyte that enables a Li||LiNi 0.8 Mn 0.1 Co 0.1 O 2 pouch cell to achieve a high gravimetric energy density of 366 Wh/kg and unprecedented cycling stability with 80% capacity retention after 335 cycles. Here, the 19 F quantitative nuclear magnetic resonance spectroscopy and interface characterization demonstrate that FEC and LiDFOB can reduce the consumption rate of each other and the electrolyte, form a robust LiF-rich SEI on Li metal anode, and improve the microstructure integrity of the high-nickel cathode.
Solution-Phase Activation and Functionalization of Colloidal WS[subscript 2] Nanosheets with Ni Single Atoms
Abstract not provided