PrBaMn₂O_6-δ (PBMO) and PrBaMn_2-xNi_xO_6-δ (PBMNO) with exsolved Ni nanoparticles (1.25 wt.%, Ni-PBMNO) are prepared for the development of high-performance catalysts for ethanol steam reforming (ESR). The activity of Ni-PBMNO increases with temperature and is higher than that of PBMO. At 600 °C, Ni-PBMNO demonstrates an ethanol conversion above 90%, an H₂–CO yield about 80%, and a negligible amount of CH₄. Both Ni-PBMNO and PBMO remain unchanged structurally in dry and wet N₂. The former adsorbs more H₂O than the latter by forming hydroxyl groups in the lattice because of its higher concentration of oxygen vacancy caused by Ni exsolution, rendering a coking resistance one to two orders higher than conventional catalysts. In the ESR atmosphere, the PBMNO substrate decomposes increasingly without lowering ESR activity. The co-existence of CO₂ and H₂O is necessary for the decomposition that formed BaCO₃ and MnO.

PrBaMn ₂ ö _6-δ（PBMO）和PrBaMn _2-X的Ni _X ö _6-δ（PBMNO）与出溶镍纳米颗粒（1.25重量％以下，Ni-PBMNO）是用于高性能催化剂的开发为乙醇蒸汽制备重整（ESR）。Ni-PBMNO的活性随温度增加而增加，高于PBMO。Ni-PBMNO在600°C时显示出90％以上的乙醇转化率，约80％的H ₂ -CO收率和少量的CH ₄。Ni-PBMNO和PBMO在干燥和湿润的N _2中均保持结构不变。前者吸收更多的H ₂O比后者通过在Ni晶格中形成羟基来形成羟基，这是因为其Ni析出引起的氧空位浓度更高，使得耐焦化性比传统催化剂高一到两个数量级。在ESR气氛中，PBMNO底物在不降低ESR活性的情况下逐渐分解。CO ₂和H ₂ O的共存对于形成BaCO ₃和MnO的分解是必需的。