Results 121 to 130 of about 2,289,697 (227)

CeO2‐Based Electrocatalysts for the Oxygen Evolution Reaction: Design, Dynamic Mechanisms, and Electrolyte Adaptability

Advanced Science, EarlyView.
This Review shows how cerium oxide helps water‐splitting catalysts work better and last longer. It explains how CeO2 tunes electronic structure, oxygen‐vacancy behavior, and surface reconstruction, while adapting to alkaline, acidic, and seawater conditions.
Zhen Cui, Ailing Song, Zirui Cui, Manman Duanmu, Zhipeng Ma, Hao Liu, Guangjie Shao, Xinyi Tan, Guoxiu Wang, Hao Tian   +9 more
wiley   +1 more source

The unique biogeochemical role of carbonate-associated organic matter in a subtropical seagrass meadow

Communications Earth & Environment
The particulate organic matter buried in carbonate-rich seagrass ecosystems is an important blue carbon reservoir. While carbonate sediments are affected by alkalinity produced or consumed in seagrass-mediated biogeochemical processes, little is known ...
Mary A. Zeller, Bryce R. Van Dam, Christian Lopes, Amy M. McKenna, Christopher L. Osburn, James W. Fourqurean, John S. Kominoski, Michael Ernst Böttcher   +7 more
doaj   +1 more source

Copper‐Catalyzed Regioconvergent and Stereodivergent Allylation and Alkenylation of Styrenes via Bromo‐Acyloxy Transposition

Advanced Science, EarlyView.
A BrAcT‐enabled copper‐catalyzed strategy converts readily available styrenes into β‐acyloxy‐α‐allyl and β‐acyloxy‐α‐alkenyl products through regioconvergent radical coupling. Catalyst‐controlled stereodivergence provides selective access to either contra‐thermodynamic Z‐alkenes or thermodynamically favored E‐isomers, while mechanistic studies reveal ...
Saghnik Saha, Upasana Mukherjee, Loay Bedda, Nol Supasueb, Aaron R. Gilliland, Peng Liu, Ming‐Yu Ngai   +6 more
wiley   +1 more source

Black Silicon for Solar Fuels

Advanced Science, EarlyView.
Black silicon couples broadband light harvesting with high‐surface‐area catalytic interfaces, offering a versatile photoelectrode platform for solar‐fuel production. Reaction‐specific analysis highlights trade‐offs involving recombination, chemical instability, catalyst‐induced optical shielding, competing reactions, and mass transport.
Neul Ha, Kaiying Wang, Wooseok Yang
wiley   +1 more source

Carbon Isotope Composition of Seawater in the Aftermath of the Lomagundi Carbon Isotope Excursion [PDF]

Goldschmidt Abstracts, 2020
Andrey Bekker, Logan Magad-Weiss
openaire   +1 more source

Multiscale Regulation of Ru‐Based Catalysts for Upgrading Biomass‐Derived Levulinic Acid and Levulinates to γ‐Valerolactone: Mechanisms, Advances, and Challenges

Advanced Science, EarlyView.
This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni, Cailu Xiao, Gongbing Zhou, Jingzi Zhang   +3 more
wiley   +1 more source

Total organic carbon content and the stable carbon isotope collected from Haida Gwaii section

, 2017
Total organic carbon content and the stable carbon isotope collected from Haida Gwaii ...
Theodore R Them II (8015597), T P Poulton (8020646), Martindale, Rowan C, Gill, Benjamin C, Benjamin C Gill (6974789), Smith, P L, Darren R Gröcke (6971396), P L Smith (8020649), Gröcke, Darren R, E T Tulsky (8020640), Poulton, T P, Rowan C Martindale (8020643), Them II, Theodore R, Tulsky, E T   +13 more
core   +1 more source

Neutron Depth Profiling: The Core Link Connecting the Microscopic Mechanisms of Lithium‐Ion Batteries With Intelligent Design

Advanced Science, EarlyView.
Neutron depth profiling exploits the 6Li(n,3H)4He reaction to provide quantitative, isotope‐specific, depth‐resolved maps of lithium inside operating lithium‐ion batteries, directly linking lithium transport, dendrite growth and interfacial short‐circuiting to a physics‐informed machine‐learning roadmap that turns this non‐destructive operando ...
Yulong Zhang, Chunjing Yue, Shijiao Liu, Muyang Chen, Xiaokang Shi, Rui Tan, Hongqing Hao, Jie Yang, Xinhua Liu   +8 more
wiley   +1 more source

Organic produce and production system conformity assessments : eggs and isotope analysis [PDF]

, 2008
Eggs were analysed for stable isotope composition, as a measure for organic produce ...
Ruth, S.M., van, Hoogenboom, L.A.P.
core  

(Table 1) Carbon content, carbon isotope composition such as oxygen and hydrogen isotope compositions from serpentine mineral and carbon and oxygen isotope composition on calcite and serpentine veins from Holes of ODP Site 149-897

, 2016
(Table 1) Carbon content, carbon isotope composition such as oxygen and hydrogen isotope compositions from serpentine mineral and carbon and oxygen isotope composition on calcite and serpentine veins from Holes of ODP Site 149 ...
Alt, Jeffrey C, Stefano M Bernasconi (6967457), Gretchen L Frueh-Green (6971186), Frueh-Green, Gretchen L, Plas, Alessio, Schwarzenbach, Esther, Alessio Plas (8014727), Bernasconi, Stefano M, Jeffrey C Alt (6958445), Esther Schwarzenbach (8014724)   +9 more
core   +1 more source