Title: The Past, Present and Future of Carbon Nanotubes

Carbon nanotubes (CNTs) have evolved from a laboratory curiosity into a cornerstone of advanced nanotechnology, with their development spanning over seven decades. Initially observed in the 1950s, CNTs gained momentum in the 1980s and 1990s with the discoveries of multi-walled (MWNTs) and single-walled nanotubes (SWNTs). Early commercialization efforts, led by pioneers such as Hyperion Catalysis, established CNTs as viable conductive additives in composites. Subsequent innovations, including breakthroughs by Xinjie Zhang and collaborators, advanced large-scale synthesis, purification, and application of CNTs, leading to ultra-long MWNTs, high-purity products, and novel structures such as CNT membranes and fibers.

Currently, CNT production is dominated by Asia, particularly China and South Korea, with large-scale MWNT manufacturing focused on conductive pastes for batteries. Europe, represented by OCSiAl, leads in SWNT commercialization, though costs remain high. North America, through companies like Novarials, emphasizes technological leadership, cost-effective production, and application to energy storage. CNT morphology, effective length, and chirality continue to define performance metrics, especially for battery applications, where CNTs serve as conductive additives, current collectors, and advanced materials for electric vehicles and energy storage systems.

Looking ahead, CNTs are expected to play a pivotal role in the global energy transition. Market forecasts project a multibillion-dollar demand for CNT-based materials in North American battery manufacturing by 2030. Key research directions include achieving longer, defect-free SWNTs with controlled chirality, scaling production with lower costs, and balancing MWNT and SWNT coexistence. The ultimate “Holy Grail” is the mass production of SWNTs with perfect cylindrical structures, high tensile strength, and metallic conductivity at costs below $20/kg. With transformative applications in batteries, electric vehicles, robotics, and advanced electronics, CNTs stand at the intersection of science, industry, and sustainable technology, promising profound impacts on energy and materials industries worldwide.

Dr. Zhang founded Novarials Corporation in 2010 and serves as its President since then. Dr. Zhang is a top industry expert on one-dimensional (1D) nanomaterials and an energetic entrepreneur. He has more than twenty years of industry research and development experience on nanomaterials, and a proven track record in commercializing new technologies. He was a group leader at SINOPEC Research Institute of Petroleum Processing (RIPP) in Beijing from 1992 to 1996. The work during this period led to the construction and successful operation of a brand-new N-methylpyrrolidone (NMP) factory, Nanjing Jinlong Chemical Co., Ltd., in 1996. Dr. Zhang led the pilot production of the catalyst and the starting work of the commercial factory. He was awarded the “Scientific and Technical Progress Award” in 1996, a ministerial award in recognition for this significant contribution. From 2000 to 2001, Dr. Zhang was a Research Fellow of the Royal Society in St. Andrews University under the sponsorship of the Royal Society of UK. From 2001 to 2003, Dr. Zhang worked in DOE Pacific Northwestern National Laboratory (PNNL) on developing novel solid acid catalysts and a new process for the conversion of sorbitol to isosorbide. The developed technology was licensed by Battelle to Iowa Corn Promotion Board in 2005. From 2003 to 2010, Dr. Zhang was the leading scientist on carbon nanotube growth in Hyperion Catalysis International – the world’s first carbon nanotube commercialization company. He was the scientist in the world who first grew single-walled carbon nanotube forest back in 2004 (3 days earlier than the Science journal paper), and he also held two more groundbreaking breakthroughs on carbon nanotube growth. Dr. Zhang has 13 issued patents and 15 peer-reviewed journal publications. His recent focus is on the large-scale preparation, processing, application, and commercialization of one-dimensional nanomaterials including multi-walled carbon nanotubes and single-walled carbon nanotubes. Under his leadership, Novarials is commercializing over two dozen inorganic nanowires, a series of unmatched carbon nanotube technologies, and three revolutionary nanowire membrane platform technologies. He earned his Ph.D. degree in Chemistry from Peking University in 1999.

Novarials Corporation

Web: www.novarials.com

Novarials Corporation, a leading nanowire technology builder headquartered in Greater Boston, has a technical leadership on the large scale and cost-effective manufacturing of high-quality and precisely-engineered one-dimensional nanomaterials including ceramic nanowires, semiconducting nanowires, metallic nanowires, ceramic nanotubes, carbon nanotubes, magnetic nanotubes and nanorings, etc. We have developed a variety of unmatched nanomaterials products and technologies, which are expected to have huge potential in dozens of industries.