Search Results - "Kumara, Chanaka"

X-ray Crystal Structure and Theoretical Analysis of Au25-xAgx(SCH2CH2Ph)18(-) Alloy by Kumara, Chanaka, Aikens, Christine M, Dass, Amala

“…The atomic arrangement of Au and Ag atoms in Au25-xAgx(SR)18 was determined by X-ray crystallography. Ag atoms were selectively incorporated in the 12 vertices…”
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Comparison of Eco-Friendly Ionic Liquids and Commercial Bio-Derived Lubricant Additives in Terms of Tribological Performance and Aquatic Toxicity by He, Xin, Stevenson, Louise M, Kumara, Chanaka, Mathews, Teresa J, Luo, Huimin, Qu, Jun

“…Approximately half of the lubricants sold globally find their way into the environment. The need for Environmentally Acceptable Lubricants (EALs) is gaining…”
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Organic-Modified Silver Nanoparticles as Lubricant Additives by Kumara, Chanaka, Luo, Huimin, Leonard, Donovan N, Meyer, Harry M, Qu, Jun

“…Advanced lubrication is essential in human life for improving mobility, durability, and efficiency. Here we report the synthesis, characterization, and…”
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X-ray Crystal Structure of Au38-xAgx(SCH2CH2Ph)24 Alloy Nanomolecules by Kumara, Chanaka, Gagnon, Kevin J, Dass, Amala

“…Herein, we report the X-ray crystallographic structure of a 38-metal atom Au-Ag alloy nanomolecule. The structure of monometallic Au38(SR)24 consists of 2…”
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Compatibility between Various Ionic Liquids and an Organic Friction Modifier as Lubricant Additives by Li, Weimin, Kumara, Chanaka, Meyer, Harry M, Luo, Huimin, Qu, Jun

“…Tribological performance of a boundary lubrication contact is largely dominated by the friction modifier (FM) and antiwear (AW) additives in the lubricant…”
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Role of surface wetting on tribological behavior for laser nanotextured steel using ionic liquid lubricants by Samanta, Avik, Huang, Wuji, Lee, Kyungjun, He, Xin, Kumara, Chanaka, Qu, Jun, Ding, Hongtao

“…This research evaluates the effect of surface wettability on the tribological performance through ball-on-flat tribology testing. The substrate material, M2…”
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Fabrication and Performance Evaluation of Double-Sided Copper Nanowire Arrays as Thermal and Electrical Interfacial Layers by Zhu, Long, Li, Tianlei, Wang, Hsin, Kumara, Chanaka, Gao, Weixiao, Ren, Fei

“…Reducing contact interface thermal and electrical resistances is in great demand across various industries, particularly in the semiconductor industry. This…”
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Faradaurate-940: Synthesis, Mass Spectrometry, Electron Microscopy, High-Energy X‑ray Diffraction, and X‑ray Scattering Study of Au∼940±20(SR)∼160±4 Nanocrystals by Kumara, Chanaka, Zuo, Xiaobing, Cullen, David A, Dass, Amala

“…Obtaining monodisperse nanocrystals and determining their composition to the atomic level and their atomic structure is highly desirable but is generally…”
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Transformation of Au144(SCH2CH2Ph)60 to Au133(SPh‑tBu)52 Nanomolecules: Theoretical and Experimental Study by Nimmala, Praneeth Reddy, Theivendran, Shevanuja, Barcaro, Giovanni, Sementa, Luca, Kumara, Chanaka, Jupally, Vijay Reddy, Apra, Edoardo, Stener, Mauro, Fortunelli, Alessandro, Dass, Amala

“…Ultrastable gold nanomolecule Au144(SCH2CH2Ph)60 upon etching with excess tert-butylbenzenethiol undergoes a core-size conversion and compositional change to…”
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Atomic Structure of Au329(SR)84 Faradaurate Plasmonic Nanomolecules by Kumara, Chanaka, Zuo, Xiaobing, Ilavsky, Jan, Cullen, David, Dass, Amala

“…To design novel nanomaterials, it is important to precisely control the composition, determine the atomic structure, and manipulate the structure to tune the…”
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Synthesis, Mass Spectrometry, and Atomic Structural Analysis of Au∼2000(SR)∼290 Nanoparticles by Vergara, Sandra, Santiago, Ulises, Kumara, Chanaka, Alducin, Diego, Whetten, Robert L, Jose Yacaman, Miguel, Dass, Amala, Ponce, Arturo

“…Metallic nanoparticles display unique optical, electronic, and chemical properties compared to their bulk counterparts. These properties are influenced by the…”
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Experimental and Theoretical Determination of the Optical Gap of the Au144(SC2H4Ph)60 Cluster and the (Au/Ag)144(SC2H4Ph)60 Nanoalloys by Koivisto, Jaakko, Malola, Sami, Kumara, Chanaka, Dass, Amal, Häkkinen, Hannu, Pettersson, Mika

“…Au144PET60 and Au144–x Ag x PET60 (PET = SC2H4Ph, phenylethylthiolate, and 30 ≤ x ≤ 53) clusters were studied by optical spectroscopy and linear response…”
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Au329(SR)84 Nanomolecules: Compositional Assignment of the 76.3 kDa Plasmonic Faradaurates by Kumara, Chanaka, Dass, Amala

“…The purpose of this work is to determine the chemical composition of the previously reported faradaurates, which is a large 76.3 kDa thiolated gold…”
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Au133(SPh‑tBu)52 Nanomolecules: X‑ray Crystallography, Optical, Electrochemical, and Theoretical Analysis by Dass, Amala, Theivendran, Shevanuja, Nimmala, Praneeth Reddy, Kumara, Chanaka, Jupally, Vijay Reddy, Fortunelli, Alessandro, Sementa, Luca, Barcaro, Giovanni, Zuo, Xiaobing, Noll, Bruce C

“…Crystal structure determination has revolutionized modern science in biology, chemistry, and physics. However, the difficulty in obtaining periodic crystal…”
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Structural Information on the Au–S Interface of Thiolate-Protected Gold Clusters: A Raman Spectroscopy Study by Varnholt, Birte, Oulevey, Patric, Luber, Sandra, Kumara, Chanaka, Dass, Amala, Bürgi, Thomas

“…The Raman spectra of a series of monolayer-protected gold clusters were investigated with special emphasis on the Au–S modes below 400 cm–1. These clusters…”
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Macroscale superlubricity by a sacrificial carbon nanotube coating by Kumara, Chanaka, Lance, Michael J., Qu, Jun

“…Superlubricity, i.e., coefficient of friction (COF) below 0.01, was earlier limited to microscale in controlled environments in the earlier literature and more…”
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Grid-to-rod fretting wear study of SiC/SiC composite accident-tolerant fuel claddings using an autoclave fretting bench test by Kumara, Chanaka, Wang, Rick, Lu, Roger Y., Deck, Christian, Gazza, Jack, Qu, Jun

“…Grid-to-rod-fretting (GTRF) in pressurized water reactors (PWRs) is known to cause wear and surface damage on the fuel claddings, potentially leading to…”
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Tribocorrosion of stainless steel sliding against graphite in FLiNaK molten salt by He, Xin, Kumara, Chanaka, Sulejmanovic, Dino, Keiser, James R., Gallego, Nidia, Qu, Jun

“…The molten salt reactor (MSR) concept recently gained renewed interest in developing Generation IV nuclear reactors. One MSR design uses fluoride molten salts…”
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Au 329 (SR) 84 Nanomolecules: Compositional Assignment of the 76.3 kDa Plasmonic Faradaurates by Kumara, Chanaka, Dass, Amala

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Au^sub 329^(SR)^sub 84^ Nanomolecules: Compositional Assignment of the 76.3 kDa Plasmonic Faradaurates by Kumara, Chanaka, Dass, Amala

“…The purpose of this work is to determine the chemical composition of the previously reported faradaurates, which is a large 76.3 kDa thiolated gold…”
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