大学化学 >> 2021, Vol. 36 >> Issue (2): 2002046.doi: 10.3866/PKU.DXHX202002046

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催化剂相关概念的辨析

凌晨, 张树永()   

  • 收稿日期:2020-02-20 录用日期:2020-03-30 发布日期:2020-04-10
  • 通讯作者: 张树永 E-mail:syzhang@sdu.edu.cn
  • 作者简介:张树永, Email: syzhang@sdu.edu.cn

Analysis of the Definitions Related to Catalyst

Chen Ling, Shuyong Zhang()   

  • Received:2020-02-20 Accepted:2020-03-30 Published:2020-04-10
  • Contact: Shuyong Zhang E-mail:syzhang@sdu.edu.cn

摘要:

催化剂的概念最早建立于1835年,之后历经了诸多变化。1996年,IUPAC名词推荐委员会给出的新定义迄今未被普遍接受。本文对催化剂的特征进行了分析,明确了催化剂的最本质特征,给出了催化剂定义的建议。从催化剂作用机制出发,辨析了负催化剂概念的问题,支持用抑制剂替代负催化剂。本文对正确认识催化剂概念,纠正现行物理化学教材中的一些错误认识具有指导意义。

关键词: 催化剂, 定义, 特征, 负催化剂, 抑制剂

Abstract:

After first established in 1835, the definition of catalyst has undergone several progresses. In 1996, IUPAC Nomenclature Committee proposed a new definition of catalyst. But till now this new definition has not been adopted extensively. In this paper, the fundamental characteristics of catalyst are listed and discussed with the essential features being clarified. Based on these discussion, a new definition of catalyst is suggested. The concept of negative catalyst is analyzed based on the essential features of catalyst. It is suggested to replace negative catalyst by inhibitor. It is meaningful for us to get a better understanding of catalyst and correct misunderstandings in the present physical chemistry textbooks.

Key words: Catalyst, Definition, Feature, Negative catalyst, Inhibitor

MSC2000: 

  • G64