催化剂的研究从最初的组分设计，经历了形貌、尺寸控制，到今天已发展到晶面调节、分子、原子水平上的几何结构和电子结构的精细调控。本申请提出“单原子层催化剂”的学术思想。控制催化剂金属粒子在x、y二维方向有序组装至微纳尺度，z方向限制在原子尺度，以获取类似单原子催化剂的量子性质和纳米催化剂稳定性质。申请拟通过层状化合物层间亚纳级空间限制制备具有纳米或微米级二维尺度、单原子层厚度的Pt、Pd、Au、Ir、Ru单原子层催化剂，该类催化剂所有原子均处于低配位状态，可获得与单原子催化剂相媲美的高活性，但优于单原子催化剂和传统纳米催化剂的稳定性。

Developing catalysts with high performance has been the major interests for the scientists in the research area of catalysis and material. Recent improvements in synthesis and characterization techniques have led to the development of the smallest heterogeneous‘particles’ possible — supported single atom catalysts. However, its stability is still the major challenge for practical application. In this application, we propose a new conceptual catalyst “single-atom-layer catalyst”. We plan to employ Layered Inorganic Compounds (LICs) as a quasi-closed flat nano-reactor to produce single-atom-layer catalyst. By means of the limited space and quasi-closed characteristics of the LICs, we aim to fabricate two-dimensional precious metal (such as Pt, Pd, Au, Ir, Ru) catalysts with the monoatomic layer thick but several nanometer long and wide. All atoms of single-atom-layer catalyst are in low catalyst coordination state, thus, the catalyst will obtain a high activity comparable to that of a single-atom catalyst, but better stability than that of single atom catalyst and traditional nano-catalyst.