関連する実験動画

Updated: Nov 8, 2025

Facile Preparation of Ultrafine Aluminum Hydroxide Particles with or without Mesoporous MCM-41 in Ambient Environments
05:50

Facile Preparation of Ultrafine Aluminum Hydroxide Particles with or without Mesoporous MCM-41 in Ambient Environments

Published on: May 11, 2017

11.1K

ゼオライト触媒におけるアルミニウム種の分布: フレームワーク,部分調整されたフレームワーク,非フレームワークのAl NMR

Kuizhi Chen1, Zhehong Gan1, Sarah Horstmeier2

  • 1National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States.

Journal of the American Chemical Society
|April 21, 2021
PubMed
まとめ

ゼオライトH-ZSM-5触媒のアルミは,主にフレームワーク種として存在します. 水熱暴露は,フレームワークサイトとは異なる非フレームワークアルミニウム種を生成し,高度なNMR技術を使用して観測できます.

さらに関連する動画

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.0K
Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route08:26

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route

Published on: April 3, 2016

13.5K

関連する概念動画

Metallic Solids02:37

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
19.8K
Structure and Bonding of Alkenes02:47

Structure and Bonding of Alkenes

Olefins, which are unsaturated hydrocarbons containing one or more carbon–carbon double bonds, are broadly divided into alkenes and cycloalkenes. The general chemical formula of an alkene is CnH2n.
Doubly bonded carbons are sp2 hybridized and have a trigonal planar geometry. The double bond is composed of a σ bond formed by the overlap of hybrid orbitals and a π bond produced by the lateral overlap of unhybridized 2p orbitals on both the carbons. Each carbon atom is...
18.9K
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.
11.5K