The Nobel Prize in Chemistry 1925 was awarded to Richard Adolf Zsigmondy "for his demonstration of the heterogenous nature of colloid solutions and for the methods he used, which have since become fundamental in modern colloid chemistry."
Richard Zsigmondy received his Nobel Prize one year later, in 1926. During the selection process in 1925, the Nobel Committee for Chemistry decided that none of the year's nominations met the criteria as outlined in the will of Alfred Nobel. According to the Nobel Foundation's statutes, the Nobel Prize can in such a case be reserved until the following year, and this statute was then applied. Richard Zsigmondy therefore received his Nobel Prize for 1925 one year later, in 1926.