Huang Zhongliang, Wang Yingru, Xia Jing, Hu Shengnan, Chen Nanjun, Ding Tianyi, Zhan Changhong, Pao Chih-Wen, Hu Zhiwei, Huang Wei-Hsiang, Shi Tong, Meng Xiangmin, Xu Yong, Cao Liang, Huang Xiaoqing
State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
i-lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu 215123, China.
Sci Adv. 2024 Oct 4;10(40):eadq6727. doi: 10.1126/sciadv.adq6727.
Pt-based nanoparticles (NPs) have been widely used in catalysis. However, this suffers from aggregation and/or sintering at working conditions. We demonstrate a robust strategy for stabilizing PtCo NPs under high temperature with strong interaction between M-N-C and PtCo NPs with Pt-M-N coordination, namely, "atom glue." Such atom glue for stabilizing Pt-based NPs can be extended to Zn, Mn, Fe, Ni, Co, and Cu, being a versatile strategy for stabilizing PtCo NPs, which substantially promotes the performance toward oxygen reduction reaction (ORR) and fuel cell. Impressively, the mass activity (MA) reaches 2.99 A mg for ORR over -Zn-N-C/PtCo, and 79.3% of the initial MA is maintained after 90K cycles in fuel cell. This work provides a versatile strategy for stabilizing Pt-based NPs via atom glue, which is likely to spark widespread interest across various fields.
基于铂的纳米颗粒（NPs）已广泛应用于催化领域。然而，在工作条件下，这会受到团聚和/或烧结的影响。我们展示了一种强大的策略，通过M-N-C与PtCo NPs之间具有Pt-M-N配位的强相互作用，即“原子胶水”，在高温下稳定PtCo NPs。这种用于稳定基于铂的NPs的原子胶水可以扩展到锌、锰、铁、镍、钴和铜，是一种稳定PtCo NPs的通用策略，这极大地提高了氧还原反应（ORR）和燃料电池的性能。令人印象深刻的是，在-Zn-N-C/PtCo上，ORR的质量活性（MA）达到2.99 A mg，在燃料电池中经过90K次循环后，初始MA的79.3%得以保持。这项工作提供了一种通过原子胶水稳定基于铂的NPs的通用策略，这可能会在各个领域引发广泛关注。
Zotero 插件
