小马同学展示了无比坚强的毅力，自我驱动力以及面对挫折的勇气。我们做好自己的本职工作，才能得到真正专业的人的认可。我们踏踏实实做事，对外行的指指点点不予理睬，用科研成果作为最好的防御来抵御其他人的无端指责和不公正评价。就像燕鹰篮球队白晗教练说的，证明自己的最好方法，就是不去证明自己。

恭喜小马，我们从小马身上学到了很多，也希望和小马在科学的世界继续一起探索，共同进步。

DOI: https://doi.org/10.1016/j.jcat.2024.115661

abstract:

Operando spectroelectrochemical spectroscopy is employed to investigate the selectivity of ethanol oxidation on hematite and titania photoanodes. High selectivity of acetaldehyde formation from ethanol oxidation has been identified using the hematite photoanode, whilst modest selectivity and over-oxidation of acetaldehyde are observed using titania photoanodes. This difference in the acetaldehyde selectivity is correlated with the valence band potential. The valence band potential is also associated with the activation energy required for the over-oxidation of acetaldehyde. The activation energy of acetaldehyde oxidation by the photogenerated holes in hematite is 427 meV whilst only 45 meV is required for titania. Kinetic isotope effect shows that the rate-limiting step of ethanol oxidation on hematite and titania involves α-C–H bond breaking, and solvent molecules are important to assist the rehybridization of this α-C. The spectral analyses emphasize the importance of considering the band potential upon the selectivity of alcohol oxidation on a broad scope.