近日，湖南大学潘帅军团队报道了火焰合成实现了成分可定制的高熵含金属纳米材料。相关论文于2025年7月30日发表在《自然-化学》杂志上。

高熵含金属纳米材料在电催化和能量转换等多个领域引起了人们的兴趣。它们的合成通常需要高温（1000 K）来促进它们的均匀混合和金属前体的快速转变。然而，目前最先进的方法通常涉及复杂的反应环境，需要专门的设备和操作。

研究组展示了一种通用的火焰合成工艺，通过将有机金属前体混合到燃料（即石蜡）中并随后燃烧，来制造支持在烟灰状碳上的高熵金属单原子和/或纳米颗粒。高火焰温度（~ 1800 K）使金属-碳结合与不同金属元素（研究了多达25种金属）之间具有可定制的化学和均质键，而不管它们的热力学相容性如何。此外，研究组展示了高性能的电合成过氧化氢，以突出这种方法作为电催化剂开发的一种有前途的方法。

附：英文原文

Title: Flame synthesis achieves compositionally tailorable high-entropy metal-containing nanomaterials

Author: Liu, Zhen, Goudeli, Eirini, Guo, Rui, Xie, Houting, Luo, Qinjian, Zhao, Laichun, Xu, Wanjun, Richardson, Joseph J., Xu, Weijian, Caruso, Frank, Pan, Shuaijun

Issue&Volume: 2025-07-30

Abstract: High-entropy metal-containing nanomaterials have garnered interest in diverse fields such as electrocatalysis and energy conversion. Their synthesis typically requires high temperatures (>1,000K) to facilitate homogeneous mixing and rapid transformation of metal precursors. However, current state-of-the-art approaches typically involve complex reaction environments and require specialized equipment and operations. Herein we demonstrate a versatile flame synthesis process to fabricate high-entropy metallic single atoms and/or nanoparticles supported on soot-like carbon via blending organometallic precursors into fuel (namely, paraffin wax) and subsequent burning. The high flame temperature (~1,800K) enables strong metal–carbon association with tailorable chemistry and homogeneous bonding between dissimilar metallic elements (up to 25 metals studied), regardless of their thermodynamic compatibility. Additionally, we show high-performance electrosynthesis of hydrogen peroxide to highlight this approach as a promising method for electrocatalyst development.

DOI: 10.1038/s41557-025-01894-w

Source: https://www.nature.com/articles/s41557-025-01894-w