Results 171 to 180 of about 77,269 (309)

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

Structure and flow of carbon and nitrogen to the western Irish Sea Nephrops norvegicus fishery: a stable isotope approach.

, 2008
PhDStable isotope analysis was used to describe the structure and flow of organic matter (carbon and nitrogen) from primary production in the water column to the benthos, and into secondary production that supports a fishery for the lobster Nephrops ...
Hill, Jacqueline Mary, Hill, Jacqueline M   +1 more
core  

Analyses of eye lens stable isotopes across ontogeny of trophically diverse freshwater salmonids. [PDF]

PLoS One
Schumacher GT, Peebles EB, Furey NB, Kinnison MT, Kronisch GR, Murphy CA.   +5 more
europepmc   +1 more source

Reconstruction of Nickel Chalcogenide Induced Ruthenium Nanoparticles Embedding for Oxygen Evolution: Mechanism Switching Enables Enhanced Catalytic Activity

Advanced Science, EarlyView.
Ru nanoparticles supported nickel chalcogens (Ru/NiX, X = S, Se), which enable fast electrooxidation to form an adaptively Ru embedding structure, featured by the compressed Ru─O─Ni bridge bonds at the Ru/NiOOH interface. On the one hand, Ru nanoparticles have a high affinity for capturing the OH−, consequently increasing the *O radical coverage.
Yuewen Wu, Mingpeng Chen, Xinqi Chen, Huachuan Sun, Tong Zhou, Yun Chen, Dequan Li, Jin Zhang, Feng Liu, Hao Cui, Qingju Liu   +10 more
wiley   +1 more source

Use of Stable Isotopes and GIS Modeling to Study Late Pleistocene to Holocene Environmental Change in the Waipaoa Sedimentary System, New Zealand

, 2009
The source to sink investigation of complex sedimentary systems necessitates chemical (stable isotope and elemental) and physical (modeling) analyses to elucidate temporal changes in volume and provenance of sediment supply.
Childress, Laurel
core  

A Dataset of Water Stable Isotopes in Iran's Main Aquifers. [PDF]

Sci Data
Karimi O, Noori R, Javadi S, Jun C, Bateni SM, Choubin B, Noury M, Heydarizad M, Kianmehr P, Tang Q, Huneau F, Pistre S.   +11 more
europepmc   +1 more source

Interfacial Proton‐Relay Microenvironment Enables Self‐Driven Singlet Oxygen Generation under Neutral Conditions

Advanced Science, EarlyView.
An interfacial proton‐relay microenvironment at MoS2‐CuCl heterostructures enables selective O2 activation to 1O2 under neutral conditions. Electron‐deficient sulfur sites mediate proton transfer to Cu‐bound O2, accelerating *OOH hydrogenation while suppressing O─O bond cleavage, achieving stable, efficient pollutant removal.
Qiaoyu Gao, Xiaohui Dai, Jian Ye, Lili Li, Chenxiao Yu, Yuehan Jiang, Jiangdong Dai, Xiaohua Tian, Jun Zhao, Jianming Pan   +9 more
wiley   +1 more source

Tree-ring stable isotopes and growth trajectories reveal early warning signals of drought-induced Scots pine mortality. [PDF]

Tree Physiol
Urban O, Hartl C, Zang C, Pernicová N, Čáslavský J, Treydte K, Schneider L, Trnka M, Esper J, Büntgen U.   +9 more
europepmc   +1 more source

Adaptive Coordination Engineering for Efficient and Robust H2 Release

Advanced Science, EarlyView.
β‐H elimination is a pivotal but challenging step in homogeneous formic acid dehydrogenation reactions due to strict hydride‐metal matching. By using a rationally designed Pd1Ag2 bimetallic system with adaptive Pd1‐Ag2/L2 coordination and formate bridges, it enables boosted formic acid dehydrogenation under ambient air (7.7 times higher than a Pd ...
Xiaolin Jiang, Xiaoyang Yan, Shenglong Jiang, Hongdan Zhu, Heng Wang, Xiaopeng Li, Xiaochun Zhou, Mingdong Zhou, Qian Peng   +8 more
wiley   +1 more source

Shift of Nitrogen and Carbon Stable Isotopes in Temporary Pond Tadpoles Following the Decline of Large Mammalian Herbivores. [PDF]

Ecol Evol
Ewald N, Demare G, Glos J, Struck U, Rödel MO.   +4 more
europepmc   +1 more source