Results 31 to 40 of about 3,248 (181)

Single‐Atom Iron‐Catalyzed Oxidative Esterification: From Methylarenes to the Upcycling of Polystyrene and Lignin‐Derived Feedstocks

Angewandte Chemie, Volume 138, Issue 31, 27 July 2026.
Heterogeneous iron‐catalyzed environmentally benign and sustainable CH‐oxidative esterification methodology has been developed for the synthesis of esters. This challenging reaction has been achieved by the rational design of specific single atom iron‐based catalyst with Fe‐N4 active centers, which empowered the oxidative esterification of methyl and ...
Zhuang Ma, Binyu Zhang, Hui Yang, Yue Hu, Junzheng Yu, Yanbin Cui, Jun Zhao, Matthias Beller, Rajenahally V. Jagadeesh   +8 more
wiley   +2 more sources

¹⁴ NNMR investigation of KSCN [PDF]

Europhysics Letters (EPL), 1997
We have directly determined with 14N NMR the SCN head-tail flipping rate in KSCN on going through the order-disorder phase transition at Tc. The results can be explained in terms of an asymmetric double-well potential for the SCN reorientations below Tc and a symmetric double-well potential above Tc.
R Blinc, T Apih, A Fricelj, J Dolinšek, J Seliger, A Fuith, W Schranz, H Warhanek, D. C Ailion   +8 more
openaire   +1 more source

Asymmetric Single‐Atom Catalysts Govern Diffusible and Non‐Diffusible Non‐Radical Pathways for Selective Degradation of Antibiotic Resistance Genes

Advanced Science, EarlyView.
Asymmetric single‐atom metal‐nitrogen‐carbon catalysts modulate the non‐radical pathway during peroxymonosulfate (PMS) activation. A fundamental contrast was revealed between diffusible singlet oxygen (1O2) and non‐diffusible electron‐transfer pathways (ETP) in antibiotic resistance gene (ARG) degradation.
Chen Gao, Jun Sun, Liang Zhang, Litao Lin, Zongfeng Wan, Bingcai Pan, Sheng Tang   +6 more
wiley   +1 more source

Separation and preconcentration trace amounts of gold by using modified organo nanoclay closite 15A

Química Nova, 2010
The application of organo nanoclay 5-(4-dimethylamino-benzylidene) rhodanine-immobilized as a new, easily prepared, and stable solid sorbent for preconcentration trace amounts of Au(III) ions in aqueous solution is presented. The sorption of Au(III) ions
Sayed Zia Mohammadi, Naimeh Seifollahi, Daryoush Afzali   +2 more
doaj   +1 more source

Photo‐Gated Corona Microfluidics

Advanced Science, EarlyView.
Photo‐gated corona microfluidics decouples optical programming from electric‐field actuation to enable reconfigurable manipulation on open, electrode‐pattern‐free surfaces. Near‐infrared irradiation locally melts paraffin, creating a reversible charge‐relaxation pathway that reconstructs the electric field.
Xiaxia Cui, Yiqing Liu, Xinyi Qiu, Manfei Liu, Biao Cheng, Yuan Zhou, Changguo Xue, Sheng Zhang, Xin Tang, Qiang Tang   +9 more
wiley   +1 more source

Ordered Hydrogen Bond Network Regulates Synergistic H and OH Spillover to Promote Alkaline Hydrogen Evolution

Advanced Energy Materials, EarlyView.
Ru─Ni nanoclusters are anchored on WC via a rapid microwave quasi‐solid‐state method to build an ordered flexible interfacial hydrogen bond network. This structure boosts water dissociation and enables barrier‐free H/OH transport via the Grotthuss mechanism, forming dual H‐to‐Ru and OH‐to‐Ni spillover pathways to overcome the key challenges of alkaline
Xiangrui Zhuge, Chengfeng Wang, Xiangrui Zhuge, Wenli Yu, Qi Wu, Weiping Xiao, Lei Wang, Tianyi Ma, Zexing Wu   +8 more
wiley   +1 more source

Photocatalytic Transfer Hydrogenation Using Plastic Hydrolysates as Hydrogen Donor

Angewandte Chemie, Volume 138, Issue 25, 15 June 2026.
Plastic waste is transformed into functional amines via solar‐driven transfer hydrogenation. Soluble monomers from acid hydrolysis of waste polymers serve as a hydrogen (electron/proton)donors in the selective reduction of nitroarenes using a visible light active photocatalyst consisting of cobalt promoted molybdenum disulfide integrated in cyanamide ...
Papa K. Kwarteng, Afreen H. Naceruddin, Erwin Reisner   +2 more
wiley   +2 more sources

Synthesis, Characterization and Biological Activity Evaluation of Some New Azo Derivatives from 2- Amino Benzothiazole and Their Derivatives [PDF]

Kirkuk Journal of Science, 2018
This study includes synthesis 2-amino benzothiazole and its substitutes (M1-M14) by the reaction of aniline derivatives with KSCN in presence of Br2 and glacial acetic acid then neutralize by concentrated ammonia solution or (by 50% NaOH).
Abdullmajeed K. Ahmed, Ihmood K. Jebur, Mohammed Ali Muayad Hamzah   +2 more
doaj   +1 more source

[MII(NCS)2(nia)2(OH2)]: Preparation, Crystal Structure and Thermal Properties (MII = Mn, Fe; nia = nicotinamide)

Acta Chimica Slovenica, 2017
Two novel isostructural coordination compounds of manganese(II) (1) and iron(II) (2) with common formula [MII(NCS)2(nia)2(OH2)2] have been prepared from water solution of appropriate metal salt, nicotinamide and KSCN.
Marta Počkaj, Nives Kitanovski, Boris Čeh, Romana Cerc-Korošec   +3 more
doaj   +1 more source

Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel

Materials and Corrosion, EarlyView.
Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković, Bore Jegdić, Branimir Grgur, Stefan Dikić, Jovanka Pejić, Anđela Simović, Nataša Gajić, Aleksandra Popović   +7 more
wiley   +1 more source