Results 51 to 60 of about 513,204 (270)

Conversion of Lignocellulose Studied by Nuclear Magnetic Resonance

Chinese Journal of Magnetic Resonance, 2021
Nuclear magnetic resonance (NMR) is an important characterization method for the depolymerization of lignocellulosic biomass and its structure evolution analysis.
Xiao-li CHEN, Wei LV, Qiu-cheng SU, Juan FU, Jia-mei MO, Qi-ying LIU   +5 more
doaj   +1 more source

Metal–Phenolic Complexation Governs Soil Mineral Crystallinity to Enhance Crop Growth

Advanced Science, EarlyView.
A coordination‐driven, coprecipitation approach is presented to obtain polyphenolic‐incorporated minerals with tunable crystallinity, offering insights into how plants may influence soil mineral structures. Soil minerals can incorporate polyphenolic secondary metabolites and enhance plant nutrition by facilitating the formation of amorphous metal ...
Jong‐Rok Jeon, Omid Mazaheri, Tianzheng Wang, Ali Zavabeti, Ho Young Yoon, Nguyen Thanh Phong, Eun‐Nam Joe, Zhixing Lin, Shuaijun Pan, Chan‐Jin Kim, Frank Caruso   +10 more
wiley   +1 more source

Supported and Non-Supported Ruthenium(II)/Phosphine/[3-(2-Aminoethyl)aminopropyl]trimethoxysilane Complexes and Their Activities in the Chemoselective Hydrogenation of trans-4-Phenyl-3-butene-2-al

Molecules, 2010
Syntheses of four new ruthenium(II) complexes of the [RuCl2(P)2(N)2] type using 2-(diphenylphosphino)ethyl methyl ether (P~O) as ether-phosphine and triphenylphosphine (PPh3) as monodentate phosphine ligands in the presence of [3-(2-aminoethyl ...
Ismail Warad
doaj   +1 more source

Chiral trimethylsilylated C2-symmetrical diamines as phosphorous derivatizing agents for the determination of the enantiomeric excess of chiral alcohols by 1H NMR

Beilstein Journal of Organic Chemistry, 2006
The use of organophosphorus derivatising agents, prepared from C2 symmetric trimethylsilylated diamines, for the 1H NMR and 31P NMR determination of the enantiomeric composition of chiral alcohols is described.
Anne-Sophie Chauvin, Alexandre Alexakis
doaj   +1 more source

Fósforo em cronossequência de cana-de-açúcar queimada no cerrado goiano: análise de ácidos húmicos por RMN de 31P

Química Nova, 2013
The aim of this study was to identify, with the use of 31P NMR spectroscopy, organic P species in humic acids (HA) in samples from Oxisol cultivated in chronosequence with sugar cane, pasture and Cerrado.
Celeste Q. Rossi, Marcos G. Pereira, Andrés C. García, Adriano Perin, Paulo R. Gazolla, Antonio P. González   +5 more
doaj   +1 more source

Electronic‐State Programming of Ultrasmall CeO2 Switches H2O2 Activation From Radical to Bio‐Inspired Nonradical 1O2 Generation for Combating Antibiotic Resistance

Advanced Science, EarlyView.
A scalable synthesis of carbon‐supported ultrasmall CeO2 nanoparticles with precisely tunable Ce electron density is reported. Electron‐lean Ce sites activate H2O2 exclusively via a nonradical pathway, enabling efficient HOBr and 1O2 production analogous to bromoperoxidase for contaminant and antibiotic resistance removal.
Bo Yuan, Xinyu Wu, Yin‐Song Liao, Chao Zhao, Zhanping Xiao, Wanqing Dai, Jyh‐Pin Chou, Wenchao Peng, Jian Lin Chen, Pi‐Tai Chou, Yung‐Kang Peng   +10 more
wiley   +1 more source

Site‐Selective Anion‐Cation Regulation of Sulfide Electrolyte Enables Low‐Pressure Dendrite‐Suppressed All‐Solid‐State Lithium Metal Batteries

Angewandte Chemie, EarlyView.
Site‐selective Al/F/Cl regulation couples sulfide‐framework stabilization with favorable interphase chemistry in argyrodite Li6PS5Cl. Al incorporation reinforces the redox‐sensitive tetrahedral framework, while F/Cl regulation promotes Li+ transport and guides the formation of a LiF/LiCl‐rich passivation interphase.
Xinxin Zhu, Xianji Qiao, Ning Qin, Zhiheng Li, Yanqun Lv, Jun Lu, Zaiping Guo   +6 more
wiley   +2 more sources

Synergistic Charge Scavenging in Pt/C‐Polyoxometalate Systems for Scalable Biomass Power Generation via Super‐Reduced Electrolytes

Advanced Science, EarlyView.
Synergistic charge scavenging between Pt/C and liquid polyoxometalate mediators effectively dismantles the inherent biological recalcitrance of raw biowaste. This dynamic interfacial electron transfer unlocks a multi‐electron super‐reduced state (>4 electrons). By overcoming traditional electron‐harvesting ceilings, this approach enables scalable, high‐
Hojin Lee, Hyeong‐Jin Lee, Jongseo Lee, Sang‐Soo Han, Sangjin Park, Eun Seon Cho, Hee‐Tak Kim   +6 more
wiley   +1 more source

A Mild Disilane‐Enabled Halide‐to‐Deuterium Manifold With D2O for Aryl and Benzylic Halides

Angewandte Chemie, EarlyView.
A broadly applicable Pd‐catalyzed dehalogenative deuteration enables efficient conversion of aryl and benzylic halides with inexpensive deuterium oxide (D2O). The method proceeds under exceptionally mild conditions without strong bases, harsh reductants, or stoichiometric Lewis acid halide scavengers, and tolerates a wide range of functional groups ...
Wenliang Wang, Ryan Parlett, Liam Hornstein, Landon Conklin, Qi Tang, Xiaodong Shi   +5 more
wiley   +2 more sources

Different profiles of soil phosphorous compounds depending on tree species and availability of soil phosphorus in a tropical rainforest in French Guiana

BMC Plant Biology
Background The availability of soil phosphorus (P) often limits the productivities of wet tropical lowland forests. Little is known, however, about the metabolomic profile of different chemical P compounds with potentially different uses and about the ...
Albert Gargallo-Garriga, Jordi Sardans, Joan Llusià, Guille Peguero, Marta Ayala-Roque, Elodie A. Courtois, Clément Stahl, Otmar Urban, Karel Klem, Pau Nolis, Miriam Pérez-Trujillo, Teodor Parella, Andreas Richter, Ivan A. Janssens, Josep Peñuelas   +14 more
doaj   +1 more source