# Enhanced Synergistic Catalytic Effect of a CTF-Based Composite via Constructing of a Binary Oxide System for Thermal Decomposition of Ammonium Perchlorate

## TL;DR

A new composite material using a binary oxide system on a 2D framework improves the thermal decomposition of ammonium perchlorate.

## Contribution

A novel CTF/CuO–NiO composite with enhanced synergistic catalytic performance is developed using a hydroxylation strategy.

## Key findings

- The CTF/CuO–NiO composite significantly lowers the decomposition temperature of ammonium perchlorate.
- Hydroxylation of CTF surfaces enables uniform dispersion of CuO–NiO nanoparticles.
- The composite achieves excellent catalytic performance with only 2 wt% loading.

## Abstract

As a widely used catalyst class, transition metal oxides (TMOs) face the challenges of detrimental nanoparticle agglomeration. The newly developing two-dimensional (2D) covalent triazine frameworks (CTFs) offer a promising solution as catalyst supports, capable of yielding composites with excellent dispersibility and synergistic catalytic enhancement. Building on this, and employing a hydroxylation functional modification strategy, this article introduces a binary oxide system to construct a CTF/CuO–NiO composite that exhibits excellent catalytic performance for the thermal decomposition of ammonium perchlorate (AP). Specifically, polyvinyl alcohol (PVA) was first employed to introduce -OH anchoring sites onto the CTF surface. A subsequent co-precipitation yielded a uniform dispersion of CuO–NiO nanoparticles across the functionalized CTF support. DSC analysis revealed that incorporating merely 2 wt% of the CTF/CuO–NiO composite into AP significantly alters its high-temperature decomposition (HTD) peak temperature, shifting it from 404.6 °C to 332.1 °C. This work highlights the construction of a binary oxide system through an effective dispersion strategy to enhance the synergistic catalytic performance of CTF-based composites.