The most famous research used to prove the possibility of abiogenesis is Miller-Urey experiment (1953), which still appears in textbooks today. Harold Urey and Stanley Miller were able to produce two amino acids by combining methane, ammonia, and hydrogen in a system including boiling water with periodic high-voltage discharges. It takes 21 amino acids to make a protein – which then is still a long way from a life form.
No complex structures were created, such as enzymes or DNA, which would have been required to produce life. Plus, Miller-Urey has been discredited for a number of reasons – including the use of gasses that wouldn’t have existed in pre-historic atmospheric conditions.