Boron Hydrogen Oxygen Structure for High-Density Hydrogen Storage
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Solution Overview
Problem
Current methods for storing and transporting hydrogen face challenges in achieving high density and safety due to its gaseous state at normal conditions and the inefficiencies of high-pressure tanks and hydrogen boride sheets in storing large amounts.
Innovation Solution
A structure comprising boron, hydrogen, and oxygen with specific B—H—B, B—H, and B—OH bonds, and a method involving the mixing of metal diborides with ion exchange resins in polar organic solvents, followed by filtration and irradiation with ultraviolet rays to enhance hydrogen storage and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydrogen is stored in liquid form at extremely low temperature, then hydrogen can be stored at high density, but it becomes difficult to store and transport large amounts safely
Solution Approach 1:
The patent changes the storage state of hydrogen from liquid (extremely low temperature) to solid compound form (hydrogen boride sheet) through chemical bonding. This parameter change allows hydrogen to be stored at high density without requiring cryogenic temperatures, thereby improving safety while maintaining high storage density
Solution Approach 2:
The patent uses composite materials by combining boron and hydrogen to form hydrogen boride sheet (BHn). This composite material approach enables high-density hydrogen storage in a solid state that is safer and more stable for transportation compared to liquid hydrogen
2Ease of operation
If high-pressure tanks are used to store hydrogen, then hydrogen can be stored and transported, but the storage per weight or volume is low
Solution Approach 1:
The patent changes hydrogen from gaseous state to solid compound state through chemical bonding with boron. This state change enables much higher storage density per weight and volume compared to gaseous hydrogen in high-pressure tanks, while maintaining ease of storage and transport
3Quantity of substance
If conventional hydrogen boride sheet is used, then hydrogen storage is improved, but further improvements are needed to increase the amount of hydrogen storage
Solution Approach 1:
The patent applies local quality by controlling the crystallite size of metal diboride to specific ranges (2-5 μm, preferably 3-5 μm) to optimize the local structure of hydrogen boride sheet. This local structural control enables higher hydrogen storage capacity and improved storage efficiency compared to conventional hydrogen boride sheets
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
The proposed method allows for the storage and transportation of a larger amount of hydrogen compared to conventional methods, with the structure efficiently releasing molecular hydrogen when irradiated, thus overcoming the limitations of existing hydrogen storage technologies.
Implementation Method 1
A method for producing molecular hydrogen (H2) comprising the step of irradiating the structure of the item [1] with ultraviolet rays
Data Source
AI summary
The object of the present invention is to provide an excellent method for storing and transporting hydrogen.The object can be solved by a structure comprising boron, hydrogen, and oxygen, that has B—H—B bonds, B—H bonds, and B—OH bonds, and in the measurement of FT-IR spectra, the following formulas are satisfied: (1) 0.80≤a/c≤0.96, and (2) 0.95≤b/c≤1.12, wherein when the baseline is defined as 100%, a is the transmittance at 1400 cm−1 in the FT-IR spectrum, b is the transmittance at 2500 cm−1 in the FT-IR spectrum, and c is the transmittance at 3200 cm−1 in the FT-IR spectrum.