Results 211 to 220 of about 1,382,192 (301)

Methane Activation by B5+ Toward a CB5H2+ Isomer Containing a Planar Tetracoordinate Carbon Atom

Angewandte Chemie, EarlyView.
Methane activation by B5+ yields CB5H2+ through H2 elimination. Electronic‐structure calculations connect the nascent dehydrogenation product to a low‐lying isomer containing a planar tetracoordinate carbon atom. ABSTRACT Planar tetracoordinate carbon (ptC) motifs have been identified predominantly in the global‐minimum structures of gas‐phase clusters
Qin‐Wei Zhang, Qiang Chen, Fernando Murillo, Filiberto Ortíz‐Chi, Rui‐Nan Yuan, Fernando Martínez‐Villarino, Aura Gómez‐Heredia, Hong Niu, Rui Wei, Jiao‐Jiao Chen, Yan‐Bo Wu, Gabriel Merino   +11 more
wiley   +1 more source

Novel Triple-Oxygen Isotope Study Indicates Unprecedented Ozone-Particulate Interaction Pathways in Atmospheric Pollution Chemistry. [PDF]

ACS Omega
Liang MC, Huang CH, Thiemens MH, Bhattacharya SK, Mahata S, Chen YJ, Yih TS.   +6 more
europepmc   +1 more source

Indium Clusters With 6s2 Lone‐Pair Effect as Excitonic Electron Reservoirs for Direct 2e− Photocatalytic H2O2 Photosynthesis

Angewandte Chemie, EarlyView.
This study demonstrates that indium clusters with 6s2 lone‐pair effect anchored on carbon nitride act as excitonic electron reservoirs to boost charge separation and O2 activation for highly selective direct 2e− oxygen reduction. This work establishes cluster‐mediated electron reservoir engineering as a general strategy for enhancing selective ...
Shijie Xie, Teng Shao, Yuye Jiao, Yurou Song, Huijie Cheng, Yaru Shao, Tianyi Ma, Jungang Hou   +7 more
wiley   +1 more source

Pt‐Mediated Co‐Adsorption of Hydroxyl and Nitrogen‐Heterocyclic Species Over Cu/CuO Heterostructure Enhances Coupled Azotriazole Electrosynthesis and Dual‐Electrode Hydrogen Production

Angewandte Chemie, EarlyView.
Pt@Cu/CuO heterostructures were designed for electrochemical N─N coupling of 3,5‐diamino‐1H‐1,2,4‐triazole. Mechanism investigation revealed that the Pt sites mediated co‐adsorption of substrates and hydroxyl on Cu/CuO sites. The elaborate Pt@Cu/CuO achieved an ultralow working potential of 0.832 VRHE with a high FE of 95%. A long‐term stability of 600
Jiachen Li, Hanggu Su, Yuqiang Ma, Meng Li, Ruhao Zhang, Cihang Wang, Zihang Zhao, Jun Hu, Xiaogang Mu, Xuanjun Wang, Haixia Ma, Zhengxiao Guo   +11 more
wiley   +1 more source

Triple oxygen isotope reveals insolation-forced tropical moisture cycles. [PDF]

Sci Adv
Sha L, Dang H, Wang Y, Wassenburg JA, Baker JL, Li H, Sinha A, Ait Brahim Y, Wu N, Lu Z, Yang C, Dong X, Lu J, Zhang H, Mahata S, Cai Y, Jian Z, Cheng H.   +17 more
europepmc   +1 more source

Elucidating Photo‐Kinetic Control in Photothermal Reverse Water‐Gas Shift Reaction

Angewandte Chemie, EarlyView.
Light directly regulates the rate‐determining step (RDS) in photothermal catalysis. In a Mars–van Krevelen (MvK)‐type reverse water‐gas shift (RWGS) reaction over In‐doped MoO2, light shifts the RDS from the H2‐related reduction half‐reaction to the CO2‐related oxidation half‐reaction, enhancing catalytic activity and lowering the apparent activation ...
Junchuan Sun, Rui Song, Chang Xu, Xue Ding, Wanguo Gao, Athanasios A. Tountas, Zhe Lu, Jiakun Wang, Zeshu Zhang, Xiaolu Zhuo, Yingfang Yao, Zhigang Zou, Geoffrey A. Ozin, Lu Wang   +13 more
wiley   +1 more source

Oxygen Isotope Fractionation of O₂ Consumption through Abiotic Photochemical Singlet Oxygen Formation Pathways. [PDF]

ACS Environ Au
Pati SG, Brunner LM, Ley M, Hofstetter TB.   +3 more
europepmc   +1 more source

Farnesyltransferase Enables Modular Assembly of Dual‐Functional Nanobody Conjugates for in Vivo Imaging of Inflammation

Angewandte Chemie, EarlyView.
A modular farnesyltransferase‐based chemoenzymatic platform enables fast, site‐specific labeling of nanobodies for PET imaging of inflammation. CD11b‐targeted PET agents selectively image myeloid‐driven inflammation, while CD45‐targeted PET agents provide sensitive whole‐body immune mapping.
Sneha Venkatachalapathy, Yoon Ho Lee, Ali Salehi Farid, Heydar Moravej, Sina Djafari Rouhani, Jennifer E. Rowley, Mohammad Rashidian, Mark D. Distefano   +7 more
wiley   +1 more source

High-Precision Oxygen-Isotope Analysis of Iron (Oxyhydr)oxides Using High-Temperature Conversion Isotope Ratio Mass Spectrometry. [PDF]

Anal Chem
Galili N, Somlyay A, Aquila G, Wijker R, Gautschi P, Wacker L, Hemingway JD.   +6 more
europepmc   +1 more source

Engineering Atomically Precise Cu4I4 Nanoclusters With Integrated Adsorption and Hydrogenation Functions for Efficient Photocatalytic Nitrate‐to‐Ammonia Conversion

Angewandte Chemie, EarlyView.
Efficient photocatalytic nitrate‐to‐ammonia conversion is achieved over an atomically precise Cu4I4 motif through dual‐site cooperation. Lewis‐acidic Cu centers promote nitrate adsorption and activation, while adjacent I sites facilitate active hydrogen generation for stepwise hydrogenation.
Wanting Zhang, Yuehua Li, Junjie Jin, Chunwei Dong, Xi Cao, Xingchi Li, Xuanjun Wu, Jiaqi Wang, Atta Ullah, Gaspar Ferreyra Vaggione, Rodrigo A. Iglesias, Yun Chen, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source