@article{Lv2024, 
author = {Jin Lv and Youhe Wang and Junjie Liu and Zhichao Zhang and Yu Ma and Ziyi Zhou and Yuqing Ouyang and Jie Zhong and Xiang Rao and Hongman Sun and Xiaoyun Xiong and Qingxun Hu and Guofeng Zhao and Zifeng Yan},
title = {Dry-gel synthesis of hierarchical Ni-La@S-1 catalysts with stabilized Ni-La bimetals nanoparticles for dry reforming of methane},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {11},
pages = {10216-10226},
keywords = {stability, dry reforming of methane, Ni-La bimetals encapsulation, dry gel recrystallization, additive metal},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6948-z},
doi = {10.1007/s12274-024-6948-z},
abstract = {Dry reforming of methane (DRM) can simultaneously convert two critical greenhouse gases CH4 and CO2 into high-value syngas. However, the catalyst deactivation caused by sintering and carbon deposition of Ni-based catalysts at high temperature is a significant problem to be solved for DRM industrialization. Herein, we represent a hierarchical Ni-La@S-1 catalyst for DRM reaction, showing high anti-sintering/coke capacity to improve DRM stability. The La and Ni nitrates were first grinded into the pores of SBA-15 followed by N2-treatment; the sample was then recrystallized by a unique template assisted-uniformly dispersed strategy to obtain the hierarchical Ni-La@S-1 catalyst. This strategy achieves uniform encapsulation of stabilized Ni-La bimetallic nanoparticles in S-1 with high loading, exhibiting high DRM activity and stability at 700 °C and 36,000 mL·g–1·h–1. Moreover, La addition promoted CO2 to form bidentate carbonate, a critical intermediate in DRM, which greatly ameliorated carbon deposition in Ni catalysts. This work offers promising clue for tailoring the industrial DRM catalysts.}
}