Complex sentence: Hill continued to receive most recognition for his work on photosynthesis and from the late 1950s his work concentrated on the energetics of photosynthesis, working with Fay Bendall he made his second great contribution to photosynthesis research.
Split into simpler sentences: Hill continued to receive most recognition for his work on photosynthesis and from the late 1950s his work concentrated on the energetics of photosynthesis. Working with Fay Bendall he made his second great contribution to photosynthesis research.