Results 81 to 90 of about 188,936 (339)

Synthesis of a terminal Ce(iv) oxo complex by photolysis of a Ce(iii) nitrate complex. [PDF]

, 2017
Reaction of [Ce(NR2)3] (R = SiMe3) with LiNO3 in THF, in the presence of 2,2,2-cryptand, results in the formation of the Ce(iii) "ate" complex, [Li(2,2,2-cryptand)][Ce(κ2-O2NO)(NR2)3] (1) in 38% yield. Photolysis of 1 at 380 nm affords [Li(2,2,2-cryptand)
Assefa, Mikiyas K, Hayton, Trevor W, Wu, Guang   +2 more
core   +1 more source

Computational Exploration of Dirhodium Complex-Catalyzed Selective Intermolecular Amination of Tertiary vs. Benzylic C−H Bonds

Molecules, 2023
The mechanism and origins of site-selectivity of Rh2(S-tfpttl)4-catalyzed C(sp3)–H bond aminations were studied using density functional theory (DFT) calculations.
Xing-Xing Su, Xia-He Chen, De-Bo Ding, Yuan-Bin She, Yun-Fang Yang   +4 more
doaj   +1 more source

Active Hydrogen for Electrochemical Ammonia Synthesis

Advanced Functional Materials, EarlyView.
This review provides a comprehensive overview of the active hydrogen (H*) for electrochemical ammonia synthesis with particular attention given to the regulation of H* generation and consumption to suppress the competition of hydrogen evolution reaction and enhance the yield, selectivity, and Faradaic efficiency of ammonia.
Guoqiang Gan, Guo Hong, Wenjun Zhang
wiley   +1 more source

Gas phase homolytic bond dissociation enthalpies of common laboratory solvents: A G4 theoretical study [PDF]

, 2010
Gas phase standard state (298.15 K, 1 atm) calculations were conducted at the Gaussian-4 (G4) composite method level of theory to estimate the bond dissociation enthalpies (BDEs) of various common laboratory solvents.
Kaya Forest, Sierra Rayne
core   +2 more sources

Covalently‐Bonded Diaphite Nanoplatelet with Engineered Electronic Properties of Diamond

Advanced Functional Materials, EarlyView.
A novel approach to engineering the electronic properties of diamond is reported on the diaphite nanoplatelet consisting of (11¯${{\bar{1}}}$1) planes of diamond nanoplatelet covalently bonded with graphite (0001) planes. The strong sp3/sp2‐hybridized interfacial covalent bonding induces the electron transfer from diamond to graphite, resulting in a ...
Zhaofeng Zhai, Chuyan Zhang, Bin Chen, Ying Xiong, Yan Liang, Lusheng Liu, Bing Yang, Nianjun Yang, Xin Jiang, Nan Huang   +9 more
wiley   +1 more source

2H‐Au Nanosheet‐Templated Growth of PdFe for Electrocatalytic Methanol Oxidation

Advanced Functional Materials, EarlyView.
2H‐to‐face‐centered cubic (fcc) phase transformation of 2H‐Au happens when PdFe alloy epitaxially grows on 2H‐Au nanosheets (NSs), forming 2H/fcc Au@PdFe NSs, and the 2H/fcc phase ratio in 2H/fcc Au@PdFe NSs can be tuned correspondingly by changing the Pd/Fe atomic ratio.
Jie Wang, An Zhang, Wenxin Niu, Guigao Liu, Xichen Zhou, Lixin Wang, Xiaozhi Liu, Lujiang Li, Zijian Li, Li Zhai, Qi Yang, Biao Huang, Qingbo Wa, Qinbai Yun, Hongfei Cheng, Yiyao Ge, Jingtao Huang, Zhaoning Hu, Bo Chen, Qinyong Zhang, Zhanxi Fan, Lin Gu, Hua Zhang   +22 more
wiley   +1 more source

Scaling laws for diamond chemical-vapor deposition. I. Diamond surface chemistry [PDF]

, 1993
A simplified model of the gas-surface chemistry occurring during chemical-vapor deposition of diamond thin films is presented. The model results in simple scaling relations, useful for process scale-up and optimization, for growth rate and defect density
Goodwin, D. G.
core   +1 more source

Evaluating the Atmospheric Loss of H₂ by NO₃ Radicals: A Theoretical Study

Atmosphere, 2022
Molecular hydrogen (H2) is now considered among the most prominent substitute for fossil fuels. The environmental impacts of a hydrogen economy have received more attention in the last years, but still, the knowledge is relatively poor. In this work, the
Manolis N. Romanias, Thanh Lam Nguyen
doaj   +1 more source

Studies with Ultracold Metastable Hydrogen [PDF]

arXiv, 2002
This thesis describes the first detailed studies of trapped metastable (2S-state) hydrogen.
arxiv  

Hydrogenation of single-walled carbon nanotubes [PDF]

, 2005
Towards the development of a useful mechanism for hydrogen storage, we have studied the hydrogenation of single-walled carbon nanotubes with atomic hydrogen using core-level photoelectron spectroscopy and x-ray absorption spectroscopy. We find that atomic hydrogen creates C-H bonds with the carbon atoms in the nanotube walls and such C-H bonds can be ...
arxiv   +1 more source