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Updated: Jan 7, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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Published on: October 5, 2019

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利用拓的氨酸框架来实现协同的H2O2生成和furfuryl酒精氧化

Meng-Yu Sun1,2, Ben-Hao Liu1, Xu-Sheng Wang3

  • 1School of Environmental Science and Geography, Qingdao University, Qingdao, 266071, P.R. China. hbhuang16@163.com.

Chemical communications (Cambridge, England)
|December 19, 2025
PubMed
概括

这项研究探讨了金属有机框架 (MOF) 的结构如何影响光催化过氧化 (H2O2) 生产. 由于电荷分离更好,PCN-224 MOF显示出更高的H2O2产量,证明了拓设计的重要性.

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相关概念视频

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide02:44

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
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Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
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Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation

Introduction
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Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids02:04

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Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.
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Hydroboration-Oxidation of Alkenes03:08

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In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
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Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate02:21

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Alkenes can be dihydroxylated using potassium permanganate.  The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.
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