Nanotechnology is considered one of the most significant advancements in science and
technology over the last few decades. However, the contemporary use of nanomaterials in
bioenergy production is very deficient. This study evaluates the application of nanomaterials
for biogas production from different kinds of waste. A state-of-the-art comprehensive review
is carried out to elaborate on the deployment of different categories of nano-additives (metal
oxides, zero-valent metals, various compounds, carbon-based nanomaterials, nano …

Exponential growth in the world population has raised the energy demand drastically
(Hagos et al., 2017). Meeting the energy requirement has now become an area of prime
importance for all nations. At present, the world is highly dependent on conventional energy
sources, ie, fossil fuels (Palaniappan, 2017). The available reserves for fossil fuels are
diminishing rapidly; one study indicated that existing reserves would last till 2050
(Satyanarayana et al., 2011). Besides, these conventional fuels contribute much to …