Results 121 to 130 of about 158,830 (405)

Photogeneration and Visualization of a Surface‐Stabilized Dinitrene

Angewandte Chemie, EarlyView.
In this communication we report the formation of a stable, surface‐supported dinitrene achieved through the photolysis of a diazide precursor on an Au(111) metal substrate. We combine high‐resolution scanning probe techniques with theoretical calculations, providing the first real‐space imaging of a metal nitrene adsorbed on a surface and exploring the
Federico Frezza, Ana Sánchez‐Grande, Sofia Canola, Christophe Nacci, Jiří Klívar, Pingo Mutombo, Qifan Chen, José María Gómez‐Fernandez, Carlos Sánchez‐Sánchez, Jan Berger, Karl‐Heinz Ernst, Irena G. Stará, José Ángel Martín‐Gago, Ivo Starý, Leonhard Grill, Pavel Jelínek   +15 more
wiley   +2 more sources

Pembentukan Hidrogen dari Air Secara Fotokatalitik oleh Serbuk TiO2 yang Didoping Nitrogen

Jurnal Kimia Valensi, 2016
Abstrak   Kesadaran terhadap ancaman krisis energi karena kebutuhan yang sangat besar dan pencemaran lingkungan yang terjadi, maka perlu dilakukan penelitian untuk menghasilkan sumber energi alternatif. Hidrogen merupakan energi alternatif yang dapat
Febrina Arfi, Hermansyah Aziz, Admin Alif   +2 more
doaj   +1 more source

Refractory carbon depletion by photolysis through dust collisions and vertical mixing [PDF]

A&A 696, A215 (2025)
The inner Solar System is depleted in refractory carbon in comparison to the interstellar medium and the depletion likely took place in the protoplanetary disk phase of the Solar System. We study the effect of photolysis of refractory carbon in the upper layers of the protosolar disk and its interplay with dust collisional growth and vertical mixing ...
arxiv   +1 more source

Photochemical studies of cis-[Ru(bpy)2(4-bzpy)(CO)](PF6)2 and cis-[Ru(bpy)2(4-bzpy)(Cl)](PF6): Blue light-induced nucleobase binding. [PDF]

, 2017
The ruthenium(II) compounds cis-[Ru(bpy)2(4-bzpy)(CO)](PF6)2 (I) and cis-[Ru(bpy)2(4-bzpy)(Cl)](PF6) (II) (4-bzpy=4-benzoylpyridine, bpy=2,2'-bipyridine) were synthesized and characterized by spectroscopic and electrochemical techniques.
Carvalho, Edinilton M, de Sousa, Aurideia P, de Sousa, Jackson R, Ellena, Javier, Ford, Peter C, Holanda, Alda KM, Lopes, Luiz GF, Sousa, Eduardo HS   +7 more
core   +4 more sources

The Function of Photocatalytic Performance and Carrier Separation Efficiency Tuned by Doping Content in Homogeneous Photocatalysts

Advanced Science, EarlyView.
A doping model of homogeneous photocatalysts of TiO2 is constructed to directly show the mapping relationship between carrier separation efficiency and photocatalytic performance. TRPL, KPFM, fs‐TAS measurements further quantify the carrier dynamics process. The photocatalytic performance of this series samples is dominated by the optimal conditions of
Chunxia Wen, Xinyue Ni, Mei Han, Yue Yu, Chuanqiang Liu, Yuan Zhang, Beining Zheng, Shouhua Feng   +7 more
wiley   +1 more source

Reactions of R3PNNPR3 Species with Boranes: Classical Adducts, FLPs, and Radical Cations

Angewandte Chemie, EarlyView.
Depending on the substituents, bis‐phosphazine species R3PNNPR3 (R = Ph 1, Cy 2) react with boranes to give Lewis acid–base adducts, generate frustrated Lewis pairs (FLP), or effect single electron transfer affording a frustrated radical pair (FRP). The B(C6F5)3 and BF3 adducts of 1 and the radical salts [R3PNNPR3]•+[BF4] (R = Cy 5b Cy 6) were obtained
Vaibhav Bedi, Andrew Niles L. Ocampochua, Zheng‐Wang Qu, Stefan Grimme, Douglas W. Stephan   +4 more
wiley   +2 more sources

Stability of CO2 Atmospheres on Desiccated M Dwarf Exoplanets [PDF]

arXiv, 2015
We investigate the chemical stability of CO2-dominated atmospheres of desiccated M dwarf terrestrial exoplanets using a 1-dimensional photochemical model. Around Sun-like stars, CO2 photolysis by Far-UV (FUV) radiation is balanced by recombination reactions that depend on water abundance.
arxiv  

Photocatalytic and Electrochemical Synthesis of Biofuel via Efficient Valorization of Biomass

Advanced Energy Materials, EarlyView.
This review highlights biomass and biofuel traits, exploring photocatalysis and electrocatalysis mechanisms and their synergistic technologies in biofuel production. It analyzes environmental and economic impacts of green catalytic processes, assesses current challenges, and outlines future research directions, condensing complex topics into a focused ...
Dalin Sun, Yan Zhang, Yuyue Zhou, Yingxia Nie, Lin Ban, Deyu Wu, Song Yang, Heng Zhang, Cheng Li, Kai Zhang   +9 more
wiley   +1 more source

Insertion of Nitriles Into a Gold(III)/Carbene Bond: A Direct and Powerful Entry to Imino‐Substituted Carbenes

Angewandte Chemie, EarlyView.
Stable imino‐substituted Au(III) carbenes are easily and efficiently prepared by trapping the transient (N^C^C)Au←:CH(dmp)+ carbene with nitriles. The corresponding free species are readily generated and display dual carbene / nitrile‐ylide reactivities. The diazo decomposition, nitrile insertion, and carbene transfer can be combined in three‐component
Rui Wei, Nina Albouy, Sonia Mallet‐Ladeira, Karinne Miqueu, Didier Bourissou   +4 more
wiley   +2 more sources

Simple Process for Sidewall Modification of Multi-Walled Carbon Nanotubes with Polymer Side Chain Radicals Generated by Ultraviolet-Induced C–Cl Bond Dissociation of Polystyrene Derivatives

C, 2016
In this work, we investigated a simple one-step process for the formation of chemical bonds between multi-walled carbon nanotubes (MWCNTs) and benzyl-type side chain radicals generated by UV photolysis of polystyrene derivatives containing the ...
Tomoya Takada, Takuma Baba, Shigeaki Abe
doaj   +1 more source