From the journal:

New Journal of Chemistry

Catalytic decomposition of hydrazine nitrate and hydroxylamine nitrate in radioactive nitric acid waste liquid using Ru/AC catalyst†

Deyan Yu, ORCID logo a   Baole Li, ORCID logo *a   Zhi Cao,a   Qi Chen,a   Chen Zuo,a   Tiansheng He, ORCID logo a   Taihong Yan ORCID logo a  and  Weifang Zheng*a  

* Corresponding authors

a Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, China
E-mail: 2979849369@qq.com, wfazh@ciae.ac.cn

Abstract

The 5 wt% Ru/AC catalysts were prepared using the impregnation method. The catalysts were characterized by N2 physical adsorption, XRD, SEM, EDX, TEM and ICP-AES. The catalytic activity and stability of the catalysts in decomposing hydroxylamine nitrate (HAN) and hydrazine nitrate (HN) in nitric acid were evaluated. The results demonstrated that the Ru/AC catalyst effectively decomposed HAN and HN with complete conversion under moderate reaction conditions (60–90 °C). When used for an extended duration of 1580 hours in radioactive nitric acid waste liquid, this catalyst displayed a remarkable processing capacity of 6.32 kilograms per gram of catalyst. Due to its environmentally friendly nature resulting from harmless gas product formation along with its simple device structure design, this protocol offers practicality and economic attractiveness.

Graphical abstract: Catalytic decomposition of hydrazine nitrate and hydroxylamine nitrate in radioactive nitric acid waste liquid using Ru/AC catalyst

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Article information

DOI
https://doi.org/10.1039/D4NJ00916A
Article type
Paper
Submitted
27 Feb 2024
Accepted
16 Apr 2024
First published
16 Apr 2024

New J. Chem., 2024, Advance Article

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Catalytic decomposition of hydrazine nitrate and hydroxylamine nitrate in radioactive nitric acid waste liquid using Ru/AC catalyst

D. Yu, B. Li, Z. Cao, Q. Chen, C. Zuo, T. He, T. Yan and W. Zheng, New J. Chem., 2024, Advance Article , DOI: 10.1039/D4NJ00916A

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