Are there alternatives to terbium oxide (CAS: 12036-41-8) in synthesis?

In certain applications, terbium oxide (CAS: 12036-41-8) can be replaced by other rare earth oxides such as cerium oxide or yttrium oxide. Alternative reagents like lanthanum oxide or gadolinium oxide might also be considered depending on specific requirements. These alternatives can offer similar catalytic or optical properties, making them viable substitutes in synthesis processes.