Nickel Nanoparticles for CO2 Hydration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for capturing and storing carbon dioxide, such as using carbonic anhydrases and organometallic complexes, are limited by high costs, instability at elevated temperatures, and narrow pH ranges, making them unsuitable for industrial-scale carbon dioxide hydration and capture.
Innovation Solution
The use of nickel nanoparticles, nanowires, or nanofibers as catalysts for the hydration of carbon dioxide, which can operate under a wider range of conditions, including high temperatures and varying pH levels, and can be easily recovered and reused.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carbonic anhydrases are used for carbon dioxide hydration, then the hydration rate is improved, but the cost increases and the pH range becomes narrow
Solution Approach 1:
The patent replaces expensive enzymes (carbonic anhydrases) with inexpensive solid metal materials that can be reused. The metal catalysts are significantly cheaper than enzyme-based solutions and do not require buffer systems, enabling operation across a wide pH range (pH 4-10) while maintaining high hydration rates.
2Productivity
If organometallic complexes are used for carbon dioxide fixation, then the fixation speed is improved, but the stability under extreme conditions deteriorates
Solution Approach 1:
The patent replaces unstable organometallic complexes with robust solid metal materials (nickel, cobalt, iron, manganese, zinc, or their alloys). These metals maintain catalytic activity under extreme conditions including high temperatures and varying pH levels, providing industrial-scale reliability while preserving fast reaction rates.
3Productivity
If enzymes are used for carbon dioxide hydration, then the catalytic activity is improved, but the temperature stability deteriorates
Solution Approach 1:
The patent replaces temperature-sensitive enzymes with thermally stable solid metals. The metal catalysts remain active at elevated temperatures suitable for industrial processes, eliminating the need for temperature control systems required by enzyme-based solutions while maintaining high catalytic activity.
4Reliability
If continuous monitoring of oil wells is implemented for carbon dioxide storage, then the storage safety is improved, but the operational complexity increases
Solution Approach 1:
The patent extracts carbon dioxide from the atmosphere through chemical conversion to stable carbonates using solid metal catalysts. This eliminates the need for long-term geological storage and continuous monitoring infrastructure, as the carbon is permanently fixed in a stable solid form suitable for construction materials and other applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly increases the rate of carbon dioxide hydration and capture, allowing for more efficient conversion of CO2 into stable carbonates, thereby addressing the limitations of existing technologies and enabling effective carbon storage.
Implementation Method 1
The methods use a solid metal to catalyse the hydration of carbon dioxide
Implementation Method 2
reacting carbon dioxide with water in the presence of nickel nanoparticles, nanowires or nanofibres
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5B
AI summary
The present invention relates to the use of solid metal materials for catalysing the hydration of carbon dioxide. It also relates to methods of and apparatus for hydrating carbon dioxide and capturing carbon. The solid metal materials may be nickel nanoparticles. The invention finds particular application in the sequestration of carbon dioxide either at the point of release or from the atmosphere.