In the world of nanomaterials, the tungsten disulfide nanosheet (WS₂ nanosheet) is gradually becoming a focal point of scientific research. This material is widely used in the energy field due to its unique physical and chemical properties. As global demand for sustainable energy continues to grow, the WS₂ nanosheet offers new possibilities for addressing energy challenges.

In today's world where issues of global climate change and environmental protection are increasingly urgent, the scientific and industrial communities are dedicating unprecedented enthusiasm to the research of efficient and eco-friendly catalyst materials. In this journey of exploring green technology, yellow tungsten oxide, this seemingly unremarkable chemical substance, is quietly leading a green revolution with its unique catalytic performance and environmental characteristics.

Yellow tungsten oxide (WO₃), as a novel and highly efficient catalyst, demonstrates remarkable potential in various industrial catalysis fields due to its unique physicochemical properties. It not only possesses excellent photoelectric properties but also plays a crucial role in key areas such as environmental governance and energy conversion, offering new possibilities for the development of the green chemical industry.

Yellow tungsten oxide, with the chemical formula WO₃, is an important member of the tungsten oxide family, appearing as yellow or yellow-green powdered crystals. Its color variation is closely related to its crystal size: it exhibits a bright yellow color when the crystal size is approximately 1.5 micrometers and shifts to green when the crystal size increases to 15 micrometers. Despite the difference in appearance color, its basic characteristics remain consistent.