By Elizabeth PUNSU, Kumasi

The professor of chemistry and vice-dean of the Faculty of Physical and Computational Sciences at Kwame Nkrumah University of Science and Technology (KNUST), Prof. Nathaniel Owusu Boadi, has highlighted the significant role that nanotechnology can play in promoting sustainable energy solutions in both Ghana and throughout Africa.

During his Professorial Inaugural Lecture at KNUST, Professor Owusu Boadi highlighted that nanotechnology—which is frequently called 'the science of the unseen'—is crucial for developing more effective, cost-efficient, and environmentally friendly energy solutions.

His lecture, titled 'Heading towards inclusive renewable energy for everyone: utilizing the strength of the unseen titans,' tracked the development of nanomaterials from their early beginnings through to their advanced uses in contemporary energy solutions.

He believes that nanotechnology could greatly boost the effectiveness of solar cells, increase battery efficiency, and refine fuel cell technology—elements crucial for shifting towards a more sustainable and robust energy industry.

"Even though Ghana and numerous African nations receive ample sunlight, access to solar power stays restricted because traditional silicon-based photovoltaic cells come at a steep price. However, nanomaterials present an encouraging substitute that might reduce expenses and enhance performance, thereby increasing the availability of solar energy," he pointed out.

Professor Owusu Boadi urged the government to significantly increase funding for research and development of nanomaterials aimed at energy production.

He similarly called upon regulatory agencies like the Environmental Protection Agency and the Ghana Standards Authority to develop scientifically grounded safety standards for manufacturing, utilizing, and disposing of nanomaterials—ensuring these align with global best practices.

He additionally suggested forming a National Nanotechnology Research Center, which would be led by the Ministry of Environment, Science and Technology (MEST), working alongside the Ministry of Finance, educational institutions, and representatives from various industries.

He stated that this center would promote locally developed innovations and help bring nanotechnology-based energy solutions to market, specifically addressing Ghana's requirements.

Professor Owusu Boadi further emphasized the extensive uses of nanotechnology outside the realm of energy. Within the medical field, nanomaterials aid in early detection via sophisticated imaging techniques and assist in regenerating tissues.

In environmental science, these applications aid in water purification and the remediation of hazardous waste. Additionally, the electronics sector benefits from improved semiconductor performance, as well as advanced sensors. Meanwhile, the textiles industry gains advantages via smarter and antibacterial fabrics.

Moreover, Professor Owusu Boadi noted that despite Ghana’s significant progress in electrification—reaching an 85.1% access rate by 2022—a number of rural areas continue to face issues with inconsistent power supply.

In Sub-Saharan Africa, approximately 600 million individuals still lack access to electricity. He stated that this disparity represents not only a challenge but also numerous opportunities.

"Through investment in nanotechnology, Ghana has the potential to take the lead in crafting sustainable, home-grown energy solutions. These efforts could not only bridge this gap but also establish the nation as a center for environmental innovation," he stressed.

Professor Nathaniel Owusu Boadi — a chemistry professor and the Vice-Dean of the Faculty of Physical and Computational Sciences at KNUST.

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