Results 121 to 130 of about 107,082 (295)

THERMAL DECOMPOSITION REACTION IN ETHANOL SOLUTION OF DEUTERATED ACETONE CYCLIC DIPEROXIDE AND ACETONE DIPEROXIDE. SECONDARY INVERSE ISOTOPIC EFFECT

Química Nova
The characterization by mass spectrometry and the kinetic study of the thermal decomposition reaction of deuterated acetone diperoxide (dACDP) was studied in ethanol in the 140-165 ºC temperature range.
Karina Nesprias, Gladys Eyler, Adriana Cañizo, Gastón Barreto   +3 more
doaj   +1 more source

Inconsistent kinetic isotope effect in ammonia charge exchange reaction measured in a Coulomb crystal and in a selected-ion flow tube. [PDF]

Nat Commun, 2022
Ard SG, Viggiano AA, Sweeny BC, Long B, Shuman NS.   +4 more
europepmc   +1 more source

Engineering Active Metal and Nonmetal Sites in Porous Structures of Metal‐Hydroxide Clusters for Enhanced D2/H2 Uptake and Separation

Advanced Science, EarlyView.
Two supramolecular assembly frameworks, constructed from metal‐hydroxide clusters, are synthesized via coordination‐driven self‐assembly mediated by Co2+ and Cu2+ metal centers. One of them demonstrates exceptional D2 and H2 uptake capabilities, achieving the second‐highest uptake capacity for D2.
Zhuozhou Xie, Zhu Zhuo, Zi‐Ang Nan, Qing Li, Wenlin Wu, Yunzhe Zhou, Zi‐Xiu Lu, Jin Liu, Luyao Liu, Wenjing Wang, Daqiang Yuan, You‐Gui Huang   +11 more
wiley   +1 more source

Reply to: Inconsistent kinetic isotope effect in ammonia charge exchange reaction measured in a Coulomb crystal and in a selected-ion flow tube. [PDF]

Nat Commun, 2022
Petralia LS, Tsikritea A, Loreau J, Softley TP, Heazlewood BR.   +4 more
europepmc   +1 more source

Box Models of Volatile Cycles over the Entire Phanerozoic [PDF]

, 2006
Three stand-alone geochemical box models have been developed to simulate globally coupled biogeochemical cycles. These models reflect the evolution of the participating biotic and abiotic constituents in marine and terrestrial environments, including the
Bartdorff, Oliver
core  

Surface Graphitized Mesoporous Carbon Surpasses the Conductivity–Porosity Trade‐Off

Advanced Science, EarlyView.
Electrochemical cathodic polarization in molten CaCl2‐NaCl converts mesoporous carbon (MC) into surface‐graphitized mesoporous graphite, simultaneously increasing surface area (397–867 m2/g) and electrical conductivity (26–450 S/cm) without mass loss.
Juntian Fan, Yating Yuan, Tao Wang, Huimin Luo, Fan Wang, Qingju Wang, Shannon M. Mahurin, Bishnu P. Thapaliya, Lilin He, Jue Liu, Nikolaos Samartzis, Zhenzhen Yang, Sheng Dai   +12 more
wiley   +1 more source

First Penning-trap mass measurement in the millisecond half-life range: the exotic halo nucleus 11Li

, 2008
In this letter, we report a new mass for $^{11}$Li using the trapping experiment TITAN at TRIUMF's ISAC facility. This is by far the shortest-lived nuclide, $t_{1/2} = 8.8 \rm{ms}$, for which a mass measurement has ever been performed with a Penning trap.
A Lapierre, D. Lunney, F. Ames, F. Sarazin, G. W. F. Drake, J. Dilling, M. Brodeur, M. Smith, N. Vinh Mau, P. Bricault, P. Delheij, R. Ringle, S. Ettenauer, T. Brunner, V. L. Ryjkov   +14 more
core   +3 more sources

A Generalized Approach for Distal C–H Arylation of Organic Building Blocks: Unveiling the Role of Counter Anion

Advanced Science, EarlyView.
We report a general strategy for meta‐selective C–H arylation using aryl iodides and a Pd(II)/Pd(IV) catalytic system guided by a removable directing group. DFT and experimental studies reveal that counter anion tuning (acetate to trifluoroacetate) significantly enhances selectivity.
Jagrit Grover, Gaurav Prakash, Astam Mandal, Devika Ghosh, Siddhartha Maiti, Claire Empel, Debabrata Maiti   +6 more
wiley   +1 more source

Extracting winter North Atlantic Oscillation information from a central European stalagmite [PDF]

, 2013
This study explores the potential for extracting winter North Atlantic Oscillation (NAO) information from central European stalagmites using a high resolution calcite δ18O (δ18Ocal) time-series from a stalagmite (AH1) extracted from Atta cave in ...
Gilliatt, Sam Matthew Rupar
core  

Beyond Sabatier: Multiplicate Spillover Phenomena for Manipulating Catalytic Dynamics in Various Electrocatalysis

Advanced Science, EarlyView.
Various spillover‐mediated electrocatalytic reactions, such as hydrogen and oxygen evolution, carbon dioxide and nitrogen reduction, and methanol oxidization reactions, are systematically summarized. Abstract Spillover phenomenon, which is characterized by the dynamic migration of active species across catalyst surfaces, provides a promising avenue to ...
Di Wang, Ziyou Dong, Qianqian Yao, Shixue Dou, Jun Mei, Ziqi Sun   +5 more
wiley   +1 more source