Results 31 to 40 of about 18,420 (249)

Bimetallic Au–Ru nanoparticles supported on zeolitic imidazolate framework-67 as highly efficient catalysts for the selective oxidation of benzyl alcohol

Scientific Reports
A highly dispersed bimetallic catalyst, AuRu/ZIF-67, and monometallic catalysts, Au/ZIF-67 and Ru/ZIF-67, were successfully prepared herein via co-impregnation/impregnation and hydrogen reduction methods.
Ying Liu, Lei Li, Lili Liu, Leyuan Wang, Miaoliang Zang, Xiaojing Zhou, Mohammad Azam, Xishi Tai   +7 more
doaj   +1 more source

The Effect of Alcohol on Palladium Nanoparticles in i-Pd(OAc)₂(TPPTS)₂ for Aerobic Oxidation of Benzyl Alcohol

Metals, 2021
In the heterogeneous catalyst i-Pd(OAc)2(TPPTS)2, Pd(II) was reduced to Pd(0) by using different alcohol solvents, and the catalyst’s activity was studied in the aerobic oxidation of benzyl alcohol.
Oshrat Levy-Ontman, Eliraz Stamker, Adi Wolfson   +2 more
doaj   +1 more source

True Closed‐Loop Recyclable Hydrogels Enabled by Imine Boronic Ester Crosslinking

Advanced Materials, EarlyView.
Subtle molecular differences in imine boronic ester crosslinkers profoundly influence hydrogel properties. 2‐formylphenylboronic acid crosslinkers form previously undisclosed 3‐amino‐benzoxaborole heterocycles, enhancing elasticity despite lower crosslinking density compared to their 4‐formylphenylboronic acid counterparts.
Jenna A. King, Joshua M. Litterio, Sean P. Larmore, Steven A. Lopez, Klaus Schmidt‐Rohr, Diego M. Alzate‐Sánchez   +5 more
wiley   +1 more source

Heterobimetallic Janus Catalysts for the One‐Pot Synthesis of Polar‐Apolar Block Copolymers

Angewandte Chemie, EarlyView.
Heterobimetallic Janus catalysts act as bifunctional initiators, combining two distinct polymerisation mechanisms in one pot to deliver well‐defined apolar‐polar block copolymers. Combining Earth abundant Ti and Al catalysts for respective α‐olefin and lactone polymerisation, the orthogonal activity is enabled by unprecedented initiation from a Ti ...
Raju Chambenahalli, Gary S. Nichol, Jennifer A. Garden   +2 more
wiley   +2 more sources

Selective oxidation of benzyl alcohol to benzaldehyde over Ce-modified algal-based biochar

能源环境保护
As an important chemical intermediate, benzaldehyde is widely used in medicine and fine chemicals. To address pollution in traditional benzaldehyde synthesis, preparing benzaldehyde through the catalytic oxidation of benzyl alcohol holds significant ...
Ying HE, Chuan YUAN, Qifan LING, Bin CAO, Sirong HE, Shuang WANG   +5 more
doaj   +1 more source

Carbon Quantum Dots/Cu₂O Photocatalyst for Room Temperature Selective Oxidation of Benzyl Alcohol

Nanomaterials
The luminescence properties and excellent carrier transfer ability of carbon quantum dots (CQDs) have attracted much attention in the field of photocatalysis.
Zhuang Tong, Yunliang Liu, Xin Wu, Yuanyuan Cheng, Jingwen Yu, Xinyue Zhang, Naiyun Liu, Xiang Liu, Haitao Li   +8 more
doaj   +1 more source

A New Strategy to Regulate the Selectivity of Photo-Mediated Catalytic Reaction

Frontiers in Chemistry, 2021
Here we developed a new method for regulating the selectivity of photo-mediated catalytic reaction by manipulating the surface charge of Au/TiO2 (gold/titanium dioxide) catalysts within chemical reaction timescales. Two kinds of photocatalytic reactions,
Kun Qian
doaj   +1 more source

Engineering Metal‐Pocket Cooperativity in Single‐Atom COF Nanozymes for Selective Cascade Catalysis

Advanced Materials, EarlyView.
A multilevel programming strategy is developed to engineer single‐atom COF nanozymes with tunable metal centers and chiral pockets inspired by heme–pocket cooperativity. This approach enables controlled metal–pocket interplay for asymmetric cascade catalysis, delivering high activity, selectivity, and recyclability in an asymmetric oxidation–aldol ...
Ziping Li, Qijun Sun, Yawen Hao, Haotian Wen, Shery Chang, Fengwang Li, Jiangtao Xu, Kang Liang   +7 more
wiley   +1 more source

A Tert‐Alkyl Terephthalate Derivative as a Universal Degradable Unit for Condensation Polymers

Angewandte Chemie, EarlyView.
A sterically bulky dicarboxylic acid core bearing a tertiary alkyl ester enables photocatalytic C─O bond cleavage via generation of a stabilized tertiary alkyl radical. Incorporated into polyarylate, polyurethane, and polyester, this universal trigger facilitates efficient degradation under identical conditions (up to 99% within 2–4 h). Remarkably, the
Yasuyuki Nitta, Ryosuke Nishikuma, Souya Kouda, Masatoshi Ohyama, Meiki Shinoda, Tsuyoshi Taniguchi, Takashi Koike, Takashi Nishikata   +7 more
wiley   +2 more sources

Oxidation of allylic and benzylic alcohols to aldehydes and carboxylic acids

Chem. Commun., 2014
The oxidation of allylic and benzylic alcohols to the corresponding carboxylic acids is effected by merging a Cu-catalyzed oxidation using O 2 as a terminal oxidant with a subsequent chlorite oxidation (Lindgren oxidation).
Daniel, Könning, Tobias, Olbrisch, Fanni D, Sypaseuth, C Christoph, Tzschucke, Mathias, Christmann   +4 more
openaire   +3 more sources