GB/T 44234-2024Nanotechnology—Measurement of thermodynamic and kinetic parameters of interface interaction between nanomaterials and gases—Microgravimetric analysis method (English PDF)

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 (deltaH°), standard entropy change (deltaS°), standard Ge Booth free energy change (deltaG°), activation energy (Ea), etc.

2 Normative references

GB/T 2298-2010

GB/T 13464-2008

GB/T 21650.2-2008

GB/T 26111-2023

GB/T 30544.1-2014

GB/T 33047.2-2021

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.