The photocatalytic assessment of methanol conversion through cross-coupling reaction of methanol with its products was studied in a UV reactor consisting of platinum nanoparticles deposited onto a mesoporous TiO₂ film. The temperature-programmed desorption (TPD) analysis showed excess methanol can affect the selective formation of formaldehyde, formic acid, and methyl formate (MF). The TPD results showed the methanol surface coverage, UV photon energy and irradiation time have mutual effects on the oxidation products. At saturated fraction of methanol coverage, formaldehyde was converted to MF and the desorption temperature of MF shifts to lower value. At 266 nm, the photooxidation reaction was more than two orders of magnitude faster than at 355 nm, suggesting that the selectivity of MF increases by the saturated fraction of methanol and increasing photon energy, while the formation of formaldehyde decreases at the same conditions. The formaldehyde conversion to formic acid gradually increases with increasing irradiation time.

在由沉积在介孔TiO ₂上的铂纳米颗粒组成的UV反应器中研究了通过甲醇与其产物的交叉偶联反应对甲醇转化的光催化评估电影。程序升温脱附（TPD）分析表明，过量的甲醇会影响甲醛，甲酸和甲酸甲酯（MF）的选择性形成。TPD结果表明，甲醇表面覆盖率，紫外光子能量和照射时间对氧化产物具有相互影响。在甲醇覆盖率的饱和分数下，甲醛转化为MF，MF的解吸温度转移到较低的值。在266 nm处，光氧化反应比在355 nm处快两个数量级以上，这表明MF的选择性随甲醇的饱和分数和光子能量的增加而增加，而甲醛的形成在相同条件下减少。随着辐照时间的增加，甲醛向甲酸的转化率逐渐增加。