Results 141 to 150 of about 155,621 (344)

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

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

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

Weakened Isotope Altitude Gradient in the Central Asian Water Tower: Role of Topography and Local Circulation

Water Resources Research
The altitude effect (AE) of stable isotopes in meteoric water (δ18O and δ2H), that is, the depletion of water isotopes with increasing altitude, is an important theoretical assumption of isotope‐based paleoaltimetry. However, this assumption has recently
Yudong Shi, Shengjie Wang, Xiaokang Liu, Kei Yoshimura, Hayoung Bong, Chenggang Zhu, Yanjun Che, Huawu Wu, Mingjun Zhang   +8 more
doaj   +1 more source

Ab initio calculations of the carbon and oxygen isotopes: Energies, correlations, and superfluid pairing

Physics Letters B
We perform ab initio nuclear lattice calculations of the neutron-rich carbon and oxygen isotopes using high-fidelity chiral interactions. We find good agreement with the observed binding energies and compute correlations associated with each two-nucleon ...
Young-Ho Song, Myungkuk Kim, Youngman Kim, Kihyeon Cho, Serdar Elhatisari, Dean Lee, Yuan-Zhuo Ma, Ulf-G Meißner   +7 more
doaj   +1 more source

(Table 3) Stable carbon and oxygen isotope ratios of the Globoconella (Fohsella) lineage from Middle Miocene sediments of DSDP Hole 30-289 in the western equatorial Pacific

, 1973
David A Hodell, Anon Vayavananda
openalex   +1 more source

Polyoxometalate as Hydrogen–Electron Hub in Metal–Organic Complex for Electrocatalytic Nitrate Reduction to Ammonia

Advanced Science, EarlyView.
To tackle low electrocatalytic nitrate reduction to ammonia efficiency in neutral media, this work designs chain‐like dinuclear/trinuclear polyoxometalate‐based metal‐organic complexes. Metal clusters provide nitrate adsorption/activation sites, while polyoxometalates (POMs) drive water dissociation to generate active hydrogen (*H) that migrates to ...
Qiushuang Jiang, Xinming Wang, Shengji Tian, Haijun Pang, Yongbin Song, Huiyuan Ma   +5 more
wiley   +1 more source

(Appendix A2) Stable oxygen isotope ratios of Globigerina bulloides from sediment core SO161/5_50SL in the Peru-Chile Trench

, 2008
Susanne Blumberg, Frank Lamy, Helge W. Arz, Helmut Echtler, Michael Wiedicke, Gerald H. Haug, Onno Oncken   +6 more
openalex   +1 more source

Characteristics of Stable Hydrogen and Oxygen Isotopes in Precipitation over the Jiaolai Plain, and its Water Vapor Sources [PDF]

, 2020
Ying Wang, Buli Cui, Dongsheng Li, Yaxuan Wang   +3 more
openalex   +1 more source

Computation‐Guided Dual‐Site Electrocatalysts for Record‐Performance Nitrite‐to‐Ammonia Conversion

Advanced Science, EarlyView.
Designing Cu doped ZnO catalysts for NO2RR via first principles calculation and boosting electrocatalytic nitrite reduction through Cu‐ZnO synergistic deoxygenation, hydrogenation, and NH3 desorption. Cu doping elevates the d‐band center of Zn, strengthening *NO2 binding and deoxygenation, while ZnO sites regulate water adsorption and dissociation ...
Hui Zhang, Haiyan Duan, Donglin Han, Zhenlin Wang, Xingchi Li, Dengchao Peng, Lupeng Han, Tianting Pang, Evangelina Pensa, Wenqiang Qu, Yongjie Shen, Haotian Wang, Wei Ren, Ming Xie, Emiliano Cortés, Dengsong Zhang   +15 more
wiley   +1 more source