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Nick.com
Nick.com is the official website of the children's television network Nickelodeon, owned by Paramount and designated for children under 13. Launched in the mid-1990s, it hosts games, videos, and interactive features.
Nickel foam
Nickel foam is an open-cell porous metal of interconnected nickel struts with 85–98% porosity, used as an electrode substrate in batteries and alkaline water electrolyzers.
Nickel matte
Nickel matte is an intermediate product of nickel extraction, a mixture of nickel sulfides produced by smelting and refined into Class 1 nickel metal or nickel sulfate.
Nickel oxide hole transport layer
A nickel oxide hole transport layer (NiOx HTL) is a transparent, chemically stable inorganic film used as the hole-selective contact on the illuminated side of inverted perovskite solar cells.
Nickel Plate Road
Nickel Plate Road, formally the New York, Chicago & St. Louis Railroad, was an American railroad running from Buffalo to Chicago from 1881 until its 1964 merger into the Norfolk & Western.
Nickel plating
Nickel plating is a surface-treatment process that deposits nickel onto a substrate by electrolysis or chemical reduction, providing corrosion resistance, wear resistance, and a bright or functional finish.
Nickel silver
Nickel silver, also known as German silver, is a copper-nickel-zinc alloy with a silvery-white color but no silver content, used in silver-plated cutlery, musical instruments, and electrical springs.
Nickel titanium
Nickel titanium, known by the trade name nitinol, is a near-equiatomic nickel-titanium alloy that shows shape memory and superelasticity, used in coronary stents and orthodontic archwires.
Nickel zinc ferrite
Nickel zinc ferrite is a soft magnetic ceramic, Ni₁₋ₓZnₓFe₂O₄, with very high electrical resistivity, used in radio-frequency components such as EMI suppression beads and RF inductors.
Nickel-iron layered double hydroxide
Nickel-iron layered double hydroxide (NiFe-LDH) is a two-dimensional layered material of nickel hydroxide sheets containing trivalent iron, serving as one of the most active earth-abundant electrocatalysts for oxygen evolution in alkaline water electrolysis.
Nickel-molybdenum catalyst
A nickel-molybdenum (Ni-Mo) catalyst is a non-precious metal electrocatalyst, usually an alloy, used to speed the hydrogen evolution reaction in alkaline water electrolysis as a cheaper alternative to platinum-group cathodes.
Nickel-rich cathode
A nickel-rich cathode is a layered oxide positive electrode for lithium-ion batteries, typically NCM or NCA, where nickel content above 80% raises energy density while reducing costly cobalt.
Nickel-rich NCM 811 cathodes
Nickel-rich NCM 811 cathodes are a lithium nickel manganese cobalt oxide cathode material, LiNi₀.₈Co₀.₁Mn₀.₁O₂, used in electric-vehicle batteries since about 2019 for high energy density despite faster degradation and weaker thermal stability.
Nickel-YSZ electrode
A nickel-YSZ electrode is a composite of metallic nickel and a porous yttria-stabilized zirconia ceramic that serves as the fuel electrode in solid oxide fuel cells and electrolysis cells.
Nickel–cadmium battery
The nickel–cadmium battery, NiCd or Ni-Cd, is a rechargeable 1.2-volt battery invented in Sweden in 1899, once common in consumer electronics and still used in aviation.
Nickel–hydrogen battery
A nickel–hydrogen battery (NiH₂) is a rechargeable battery developed for spacecraft, valued for long cycle life and used on satellites and the Hubble Space Telescope.
Nickel–iron anodes for alkaline water electrolysis
Nickel–iron anodes are alkaline water electrolysis electrodes whose NiFe (oxy)hydroxide surface catalyzes the sluggish oxygen evolution reaction, the leading non-noble-metal alternative to scarce iridium and ruthenium.
Nickel–iron battery
The nickel–iron battery, abbreviated Ni–Fe, is a durable rechargeable battery with iron and nickel electrodes in alkaline electrolyte, independently patented by Thomas Edison and Ernst Waldemar Jungner around 1901.
Nickel–iron oxyhydroxide catalysts on nickel foam for alkaline electrolyzers
Nickel–iron oxyhydroxide catalysts grown directly on porous nickel foam are self-supported, precious-metal-free anode electrodes for the oxygen evolution reaction in alkaline water electrolysis, the standard non-noble benchmark.
Nickel–metal hydride battery
A nickel–metal hydride (NiMH) battery is a rechargeable 1.2 V cell storing hydrogen in a metal alloy, with higher capacity than NiCd and long use in hybrid vehicles.
Nickel–zinc battery
The nickel–zinc battery (Ni–Zn) is a rechargeable battery using a zinc anode and nickel oxyhydroxide cathode, delivering a higher cell voltage than other nickel-based chemistries.
Nickolas J. Themelis
Nickolas J. Themelis, born 1933, is an American chemical metallurgist, Columbia University professor, and National Academy of Engineering member known for the Noranda copper smelting process and waste-to-energy research.
Nicky C.C. Lu (卢超群)
Nicky C.C. Lu (卢超群) is a Taiwanese-American semiconductor engineer and entrepreneur, founder and CEO of Etron Technology, best known for inventing the 3D trench-capacitor DRAM cell at IBM.
Nicola Gasparini
Nicola Gasparini is an Associate Professor in Electronic Materials at Imperial College London who leads the Gaspa Group and won the 2024 RSC Materials Chemistry Early Career Prize.
Nicolas J. Cerf
Nicolas J. Cerf is a Belgian quantum information scientist and professor at the Université libre de Bruxelles, known for negative conditional entropies and Gaussian quantum cloning.
Nicolas Voelcker
Nicolas H. Voelcker is a bionanotechnologist who works on porous silicon nanostructures for biosensors and drug delivery, and is Scientific Director of the Melbourne Centre for Nanofabrication.
Nicoll Highway collapse
The Nicoll Highway collapse was a 2004 construction accident in Singapore in which a subway excavation failure brought down part of the highway, killing four workers.
Nicor Gas
Nicor Gas, legally Northern Illinois Gas Company, is a natural gas distribution utility headquartered in Naperville, serving 2.3 million customers across northern Illinois as the state's largest gas distributor.
Nicos Christofides
Nicos Christofides (1942–2019) was a Cypriot-born computer scientist and Professor of Operational Research at Imperial College London, known for his 1976 approximation algorithm for the traveling salesman problem.
Nicosia Aqueduct
The Nicosia Aqueduct, also called the Silahtar Aqueduct, was an Ottoman conduit that carried water from the mountains north of Nicosia into the walled city, supplying street fountains.