Related Experiment Video
Updated: Feb 9, 2026
11:14
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
12.9K
Coordination-induced CO2 fixation into carbonate by metal oxides
Zhi Zhao1, Xiangtao Kong, Qinqin Yuan
1State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China. ljiang@dicp.ac.cn fanhj@dicp.ac.cn.
Physical Chemistry Chemical Physics : PCCP
|June 7, 2018
Summary
This study shows how yttrium oxide catalysts coordinate carbon dioxide (CO2) to form carbonate. This coordination-induced CO2 fixation offers a new model for controlling CO2 capture and release.
Area of Science:
- Materials Science
- Catalysis
- Inorganic Chemistry
Background:
- Carbon dioxide (CO2) capture and utilization are critical for mitigating climate change.
- Developing efficient catalysts for CO2 fixation is a key research area.
- Understanding the fundamental mechanisms of CO2 coordination is essential for catalyst design.
Purpose of the Study:
- To investigate the mechanism of coordination-induced CO2 fixation into carbonate using a cationic yttrium oxide model catalyst.
- To elucidate the role of ligand and metal interactions in CO2 conversion.
- To establish a model system for tuning CO2 fixation and emission.
Main Methods:
- Infrared (IR) spectroscopy to monitor CO2 binding and complex formation.
- Computational analysis of electron donation and ligand-metal interactions.
- Systematic variation of ligands and metals to study their effects on CO2 fixation.
Main Results:
- Infrared spectra revealed weak binding of the initial CO2 molecules to the yttrium metal center.
- Further CO2 coordination led to the formation of a stable carbonate complex, evidenced by a core ion transition.
- Electron donation from ligands to the metal facilitated the conversion of yttrium oxide and CO2 into carbonate.
- Analysis demonstrated that ligand and metal choice significantly influences the CO2 fixation efficiency.
Conclusions:
- Coordination-induced CO2 fixation into carbonate is achievable with yttrium oxide catalysts.
- The yttrium oxide system provides a tunable platform for controlling CO2 capture and release.
- This research offers insights into designing advanced catalysts for CO2 management.
Related Concept Videos
01:28Carbon-dioxide Fixation
732
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
732
02:57Coordination Number and Geometry
19.1K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
19.1K
02:54Coordination Compounds and Nomenclature
26.9K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
26.9K
03:14Oxidation Numbers
42.9K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
42.9K
02:51Metal-Ligand Bonds
24.4K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.4K
02:37Metallic Solids
20.8K
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....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.8K