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GB/T 44007-2024: Nanotechnologies - Measurement of the hydrogen storage capacity of nanoporous materials - Gas adsorption method
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Nanotechnologies - Measurement of the hydrogen storage capacity of nanoporous materials - Gas adsorption method
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Basic data | Standard ID | GB/T 44007-2024 (GB/T44007-2024) | | Description (Translated English) | Nanotechnologies - Measurement of the hydrogen storage capacity of nanoporous materials - Gas adsorption method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G04 | | Classification of International Standard | 71.040.50 | | Word Count Estimation | 18,114 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-08-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44007-2024: Nanotechnologies - Measurement of the hydrogen storage capacity of nanoporous materials - Gas adsorption method
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ICS 71:040:50
CCSG04
National Standards of People's Republic of China
nano technology
Determination of hydrogen storage capacity of nanoporous materials
Gas adsorption method
Materials-Gas adsorption method
2024-08-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 2
5 Reagents or materials 3
6 Instruments and Equipment 3
7 Measurement Step 4
8 Hydrogen storage calculation 4
9 Factors affecting uncertainty 6
10 Test Report 6
Appendix A (Informative) Example of Determination of Hydrogen Storage Capacity of Nanoporous Materials 7
References 9
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the Chinese Academy of Sciences:
This document is under the jurisdiction of the National Nanotechnology Standardization Technical Committee (SAC/TC279):
This document was drafted by: National Center for Nanoscience and Technology, Beijing Guoqing Zhonglian Hydrogen Energy Technology Research Institute Co:, Ltd:, Zhejiang Normal University, China
Jiliang University, Best Instrument Technology (Beijing) Co:, Ltd:, Guoyi Quantum (Hefei) Technology Co:, Ltd:, Micromeritics (Shanghai) Instruments
Co:, Ltd:, Guangdong Academy of Sciences New Materials Research Institute, Jinkai Instrument (Dalian) Co:, Ltd:, China National Accreditation Service for Conformity Assessment,
National Institute of Metrology, Beijing Academy of Science and Technology Analysis and Testing Institute (Beijing Physical and Chemical Analysis and Testing Center), Antai Technology Co:, Ltd:
Co:, Ltd:, Shell (China) Co:, Ltd:, and Beijing Powder Technology Association:
The main drafters of this document are: Yan Xiaoying, Liu Congmin, Mao Lijuan, Dai Wei, Yu Mingzhou, Liu Jianfeng, Huang Hui, Xiong Wen, Wang Juan, Tan Lixin, Zhong Hua,
Wang Ning, Wang Hai, Gao Yuan, Li Yanping, Fu Xin, Zhou Suhong, Gao Jie, Wang Xiaoping, Guo Yanjun, Ge Guanglu, Li Xujuan, Liu Wei, Wan Yanming:
Introduction
Breakthroughs in safe and efficient hydrogen storage technology are an important part of the rapid and healthy development of hydrogen energy: Hydrogen storage technologies include gaseous hydrogen storage, liquid hydrogen storage,
Hydrogen and solid-state hydrogen storage: In hydrogen storage technology, solid-state hydrogen storage has high energy density, easy operation, convenient transportation, low cost, high safety, and is extremely
Gas adsorption solid hydrogen storage refers to the material being able to reversibly absorb or adsorb atomic and molecular hydrogen, using chemical or
The physical method of compressing hydrogen to a high storage density is considered to be the safest and most effective way of storing hydrogen:
This document focuses on the physical hydrogen storage method in solid-state hydrogen storage: The material and hydrogen are physically adsorbed, and the interaction between the two is the force of the range:
The critical temperature of hydrogen is -240℃: Even when adsorbed at liquid nitrogen temperature, hydrogen is in a supercritical state and will not condense:
Studies have found that hydrogen can only undergo monomolecular adsorption in a supercritical state, so the adsorption amount is proportional to the specific surface area of the adsorbent:
Nanoporous materials with high specific surface area have become very competitive hydrogen storage materials:
With the development of nanomaterials, especially nanoporous materials, in the field of hydrogen storage, it is very important to accurately measure the hydrogen storage capacity of the materials:
There is no unified method for measuring hydrogen storage capacity: The method described in this document for determining hydrogen storage capacity by gas adsorption will provide a reference for the determination of hydrogen storage capacity in nanoporous materials:
It provides a methodological basis for accurate measurement and mutual comparison of
nano technology
Determination of hydrogen storage capacity of nanoporous materials
Gas adsorption method
WARNING: Personnel using this document should have practical experience in formal laboratory work: This document does not address all possible safety issues:
The user is responsible for taking appropriate safety and health measures and ensuring that the conditions specified in relevant national laws and regulations are met: It is recommended to wear protective gloves and
Solid eye shields and face shields are used to safely handle sudden splashes of liquid nitrogen and other liquid media: The safety requirements for hydrogen should comply with GB 4962-
2008 and Chapter 6 of GB/T 3634:1-2006:
1 Scope
This document describes a method for determining the static volumetric gas adsorption capacity of nanoporous materials for hydrogen storage:
This document is applicable to carbon materials, zeolites, metal organic framework materials, porous organic polymers and other nanoporous materials that store hydrogen by physical adsorption:
The determination of hydrogen storage capacity of other porous materials can also be used for reference:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 3634:1-2006 Hydrogen Part 1 Industrial Hydrogen
GB 4962-2008 Safety technical regulations for the use of hydrogen
GB/T 5314 Powder sampling method for powder metallurgy
GB/T 19587 Determination of specific surface area of solid substances by gas adsorption BET method
GB/T 21650:3 Mercury intrusion porosimetry and gas adsorption method for the determination of pore size distribution and porosity of solid materials Part 3: Gas adsorption method
Micropore Analysis
GB/T 24499 Terminology of hydrogen, hydrogen energy and hydrogen energy systems
GB/T 30544:4 Nanotechnology Terminology Part 4: Nanostructured Materials
ISO 8213 Sampling techniques for industrial chemicals Solid chemicals of varying particle shapes from powders to coarse lumps
3 Terms and definitions
The terms and definitions defined in GB/T 19587, GB/T 21650:3, GB/T 24499, GB/T 30544:4 and the following terms and definitions apply to this
document:
3:1
Nanoporous material
A solid material having nanopores:
[Source: GB/T 30544:4-2019, 3:4]
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