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Basic data
| Standard ID | GB/T 44234-2024 (GB/T44234-2024) |
| Description (Translated English) | Nanotechnology - Measurement of thermodynamic and kinetic parameters of interface interaction between nanomaterials and gases - Microgravimetric analysis method |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | A42 |
| Classification of International Standard | 17.200 |
| Word Count Estimation | 24,248 |
| Date of Issue | 2024-08-23 |
| Date of Implementation | 2024-08-23 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 44234-2024: Nanotechnology - Measurement of thermodynamic and kinetic parameters of interface interaction between nanomaterials and gases - Microgravimetric analysis method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Nanotechnology - Measurement of thermodynamic and kinetic parameters of interface interaction between nanomaterials and gases - Microgravimetric analysis method
Nanotechnology, nanomaterials and gas surface interface
Thermodynamic and kinetic parameter measurements
Resonant Micromass Method
Nanotechnology-Measurement of thermodynamic and kinetic parameters of
interface interaction between nanomaterials and gases-Microgravimetric
ICS 17.200
CCS A 42
National Standard of the People's Republic of China
Released on 2024-08-23
2025-03-01 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 Symbols ... 2
5 Method Principle ... 3
5.1 Working Principle of Resonant Microcantilever ... 3
5.2 Calculation of thermodynamic and kinetic parameters 3
6 Instruments and Equipment ... 4
6.1 Test Equipment ... 4
6.2 Dynamic Valve System ... 4
6.3 Constant temperature box ... 4
6.4 Interface circuit and control system ... 5
6.5 Resonant Microcantilever ... 5
7 Test samples and reagents ... 5
7.1 Test Samples 5
7.2 Dilution Gas ... 5
7.3 Test gas ... 5
7.4 Dispersants ... 5
8 Test methods ... 6
8.1 Standard test conditions 6
8.2 Sample coating 6
8.3 Sample testing 6
9 Data Processing ... 6
9.1 Thermodynamic parameters 6
9.2 Kinetic parameters─Activation energy Ea ... 8
10 Test Report ... 8
Appendix A (Informative) Examples of Measurement of Adsorption Thermodynamic Parameters of Mesoporous Nanoparticle Materials ... 9
Appendix B (Informative) Examples of Measurement of Adsorption Kinetic Parameters of Nanomaterials ... 13
Appendix C (Informative) Test Report Format ... 16
References ... 17
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 is required.
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 Technical Committee on Nanotechnology Standardization (SAC/TC 279).
This document was drafted by. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, National Center for Nanoscience and Technology, Xiamen Hi-Tech
Co., Ltd., Shanghai National Engineering Research Center for Nanotechnology and Applications Co., Ltd., Tongji University, and China National Institute of Metrology.
The main drafters of this document are. Li Xinxin, Xu Pengcheng, Yu Haitao, Ge Guanglu, Cheng Xinbin, He Dannong, Ren Lingling, Zhu Jun, and Jin Han.
Introduction
Functional nanomaterials based on interfacial molecular interactions are widely used in the fields of information acquisition, ecological environment, new energy, health care, etc.
This paper describes a resonant micromass method using a resonant microcantilever as the core measurement tool for the purpose of
The acquisition of thermodynamic parameters and kinetic parameters of interfacial interaction provides a standard measurement method. This method can effectively avoid the traditional measurement method
problems, obtain thermodynamic and kinetic parameters including enthalpy change, entropy change, Gibbs free energy, activation energy, etc., and take into account scientific research
Research and industrial application needs.
Nanotechnology, nanomaterials and gas surface interface
Thermodynamic and kinetic parameter measurements
Resonant Micromass Method
1 Scope
This paper describes a method for obtaining thermodynamic and kinetic parameters of the interface between nanomaterials and gases based on the resonant micromass method.
Including method principles, instruments and equipment, test samples and reagents, test methods, data processing, and test reports.
This document applies to the measurement of thermodynamic and kinetic parameters, including standard enthalpy change (ΔH°), standard entropy change (ΔS°), standard Ge
Booth free energy change (ΔG°), activation energy (Ea), etc.
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.
in this document.
GB/T 2298-2010 Mechanical vibration, shock and condition monitoring vocabulary
GB/T 13464-2008 Thermal analysis test method for thermal stability of materials
GB/T 21650.2-2008 Determination of pore size distribution and porosity of solid materials by mercury intrusion and gas adsorption method Part 2.Gas adsorption
Analysis of mesopores and macropores by attachment method
GB/T 26111-2023 Micro-electromechanical systems (MEMS) technical terms
GB/T 30544.1-2014 Nanotechnology Terminology Part 1.Core Terminology
GB/T 33047.2-2021 Thermogravimetry (TG) of plastic polymers Part 2.Determination of activation energy
3 Terms and definitions
GB/T 2 2 9 8 - 2 0 1 0, GB/T 1 3 4 6 4 - 2 0 0 8, GB/T 2 1 6 5 0.2 - 2 0 0 8, GB/T 2 6 1 1 1 - 2 0 2 3 、
The terms and definitions defined in GB/T 30544.1-2014 and GB/T 33047.2-2021 and the following apply to this document.
3.1
Nanomaterials
Any material whose external dimension, internal or surface structure is at the nanoscale.
[Source. GB/T 30544.1-2014, 2.4]
3.2
Resonance
resonance
The system response of a forced oscillation system will decrease even when there is a small change in the excitation frequency.
[Source. GB/T 2298-2010, 3.80, modified]
3.3
Resonance micromass method microgravimetric analysis method
A method of measuring tiny mass changes using resonant microsensors such as resonant microcantilever beams.
...
