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Related Concept Videos

Solvents01:12

Solvents

A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
Gas Solubility01:31

Gas Solubility

Gas solubility in liquids forms liquid-gas solutions, such as soft drinks, where carbon dioxide is dissolved in water, and the ocean, where the solubility of oxygen and carbon dioxide supports marine life. The ability of oceans to dissolve gases impacts weather conditions in the troposphere.However, gas-liquid interactions vary. For instance, hydrogen chloride gas is highly soluble in water, while oxygen's solubility is much lower. Because these solutions are non-ideal, Raoult’s law, which...
Volatilization01:10

Volatilization

Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
Carbon Dioxide Transport in the Blood01:19

Carbon Dioxide Transport in the Blood

Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Physical Properties Affecting Solubility02:19

Physical Properties Affecting Solubility

Solutions of Gases in Liquids
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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...

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Updated: Jun 10, 2026

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
07:36

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

CO2: a wild solvent, tamed.

Stephen Cummings1, Kieran Trickett, Robert Enick

  • 1School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.

Physical Chemistry Chemical Physics : PCCP
|July 22, 2010
PubMed
Summary
This summary is machine-generated.

This review explores modifying supercritical carbon dioxide (scCO2) solvent properties using self-assembling polymers and surfactants. The focus is on viscosity modifiers for enhanced industrial applications and environmental benefits.

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Last Updated: Jun 10, 2026

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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Physical Chemistry

Background:

  • Supercritical carbon dioxide (scCO2) is an environmentally friendly solvent with tunable properties.
  • Modifying scCO2 solvent properties, particularly viscosity, is crucial for expanding its applications.
  • Self-assembly of oligomeric and polymeric additives offers a promising route for scCO2 modification.

Purpose of the Study:

  • To review current approaches for modifying the solvent properties of scCO2.
  • To focus on viscosity modification of scCO2 using molecular self-assembly.
  • To discuss the environmental and economic implications of advancements in scCO2 modification.

Main Methods:

  • Review of literature on polymers and surfactants with CO2-compatible functionalities.
  • Detailed description of methods employed to increase scCO2 viscosity.
  • Analysis of self-assembly mechanisms for viscosity modification.

Main Results:

  • Identified key polymer and surfactant functionalities for CO2 compatibility.
  • Detailed existing strategies for enhancing scCO2 viscosity through molecular self-assembly.
  • Highlighted the potential for significant viscosity increases.

Conclusions:

  • Molecular self-assembly of specific additives is a viable strategy for tuning scCO2 viscosity.
  • Advancements in this field hold substantial environmental and economic promise.
  • Further research into novel self-assembling systems is warranted for broader scCO2 applications.