Results 71 to 80 of about 3,134 (251)

B, N‐Co Doped Porous Carbon Nanotubes Supported Cu Single Atoms and B‐Doped Cu Nanoparticles for High‐Performance Electrocatalytic NO3RR and Zn‐Nitrate Batteries

Carbon Energy, EarlyView.
The ToC image shows a porous B, N‐doped carbon nanotube decorated with B‐doped Cu nanoparticles for nitrate‐to‐ammonia conversion. The unique structure enhances charge transport, promotes the adsorption and activation of key intermediates, alters the rate‐determining step, suppresses hydrogen evolution, and improves NH3 yield and Faradaic efficiency ...
Xiangding Li, Jiahui Xiang, Yilun Gao, Zhihao Liu, Haozhi Wang, Hua Yuan, Binbin Fan, Xiaoyu Huang   +7 more
wiley   +1 more source

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

Chemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego, Saray Chacón‐Ruiz, Pedro Ruiz‐Campos, Herme G. Baldoví, Pedro Atienzar   +4 more
wiley   +1 more source

Influence of octupole deformed shell structure on the asymmetric fission of mercury isotopes

The fission yields of mercury isotopes were calculated and evaluated by using the improved scission point model. The asymmetric fission of 180Hg was analyzed within the framework of the scission point model with octupole deformed fragments.
Chao Han, Zheng Wei, Ze-en Yao, Jun-run Wang, Kang Wu, Yu Zhang, Dong-ying Huo, Qiao-yue Jiang   +7 more
core   +1 more source

Anomalous mercury enrichment in Early Cambrian black shales of South China: Mercury isotopes indicate a seawater source

, 2017
Extremely elevated Hg levels up to the mu g g(-1) range were found in sulfide-rich black shale and phosphorite in the lowermost part of the Early Cambrian black shale sequences on the Yangtze Platform in South China.
Yin, Runsheng, James P. Hurley, Hu, Ruizhong, Runsheng Yin, Hurley, James P., Xu, Lingang, Ryan F. Lepak, Bernd Lehmann, Xinbin Feng, Feng, Xinbin, Mao, Jingwen, Lepak, Ryan F., Jingwen Mao, Ruizhong Hu, Lingang Xu, Lehmann, Bernd   +15 more
core   +1 more source

Mercury distribution and transfer in mangrove forests in urban areas under simulated rising sea levels

Frontiers in Marine Science
This study assesses the impact of simulated sea level rise (SLR) on mercury distribution and migration in an urban mangrove wetland on the northern coast of Maluan Bay, Xiamen City, Fujian Province, China.
Xilin You, Xilin You, Lumin Sun, Xiaozheng Chen, Xiaozheng Chen, Yiting Li, Jue Zheng, Jue Zheng, Dongxing Yuan, Junjie Wu, Junjie Wu, Shiyu Sun   +11 more
doaj   +1 more source

The Role of Iron‐Hyponitrite Intermediates in Biology and Insights From Synthetic Model Complexes

Chemistry – A European Journal, EarlyView.
Despite the difference in active site architecture, NO reduction by different NOR enzymes is expected to be linked by a common intermediate: hyponitrite (N2O22−). However, experimentally, very little is known about the coordination chemistry of iron with hyponitrite and the expected Fe‐hyponitrite intermediates.
Michael O. Lengel, Nicolai Lehnert
wiley   +1 more source

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

Chemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Foraging behavior and age affect maternal transfer of mercury to northern elephant seal pups

Scientific Reports
Deep ocean foraging northern elephant seals (Mirounga angustirostris) consume fish and squid in remote depths of the North Pacific Ocean. Contaminants bioaccumulated from prey are subsequently transferred by adult females to pups during gestation and ...
Sarah H. Peterson, Michael G. Peterson, Joshua T. Ackerman, Cathy Debier, Chandra Goetsch, Rachel R. Holser, Luis A. Hückstädt, Jennifer C. Johnson, Theresa R. Keates, Birgitte I. McDonald, Elizabeth A. McHuron, Daniel P. Costa   +11 more
doaj   +1 more source

Mercury isotopes of atmospheric particle bound mercury for source apportionment study in urban Kolkata, India

Elementa: Science of the Anthropocene, 2016
The particle bound mercury (PBM) in urban-industrial areas is mainly of anthropogenic origin, and is derived from two principal sources: Hg bound to particulate matter directly emitted by industries and power generation plants, and adsorption of gaseous ...
Reshmi Das, Xianfeng Wang, Bahareh Khezri, Richard D. Webster, Pradip Kumar Sikdar, Subhajit Datta   +5 more
doaj   +1 more source

Recurrent photic zone euxinia limited ocean oxygenation and animal evolution during the Ediacaran

Nature Communications, 2023
The Ediacaran Period (~635–539 Ma) is marked by the emergence and diversification of complex metazoans linked to ocean redox changes, but the processes and mechanism of the redox evolution in the Ediacaran ocean are intensely debated. Here we use mercury
Wang Zheng, Anwen Zhou, Swapan K. Sahoo, Morrison R. Nolan, Chadlin M. Ostrander, Ruoyu Sun, Ariel D. Anbar, Shuhai Xiao, Jiubin Chen   +8 more
doaj   +1 more source