Rigoberto Advincula, a polymer scientist at the U.S. Department of Energy's Oak Ridge National Laboratory (ORNL), received the Frank Tiller Award from the American Filtration and Separations Society (AFS) on May 15, recognizing research that brings additively manufactured membranes and smart separation surfaces within reach of automotive and energy applications. The honor, presented at FILTCON26 in Pittsburgh on May 12-15, 2025, arrives as automakers and Tier 1 suppliers face mounting pressure to upgrade fluid-particle separation systems across light- and heavy-duty platforms.
Background
Named for Frank Tiller, a founding AFS member widely regarded as the father of modern filtration theory, the award recognizes lifetime scientific and engineering achievement in fluid-particle separation technology. Advincula holds a joint appointment as Governor's Chair Professor at the University of Tennessee, Knoxville, and leads the Macromolecular Nanomaterials Group at ORNL's Center for Nanophase Materials Sciences. He was cited for contributions spanning new materials, 3D printed membranes, and smart separation surfaces. His publication record stands at 513 works, with 15 issued patents and four additional patents pending.
The recognition reinforces ORNL's position at the intersection of polymer science and advanced manufacturing. Advincula's research encompasses the design, synthesis, and characterization of polymers and nanomaterials, including functional macromolecules, polymer brushes, electropolymerization, and nanocomposite materials. Combined with additive manufacturing, this portfolio enables membranes with coordinated chemistry, defined microstructure, and responsive surfaces-capabilities that contrast sharply with conventional membranes produced by coating, casting, or sintering.
Details
The automotive relevance of Advincula's work stems from the structural flexibility additive manufacturing confers on membrane design. Additive manufacturing opens additional degrees of freedom in pore geometry, channel structures, and surface functions that can be designed with greater specificity and integrated directly into components-a material architecture difficult to achieve through conventional production routes.
In the cabin air filtration segment, high-performance polymer membranes capable of targeting fine particulate matter (PM2.5) and volatile organic compounds are increasingly relevant to regulatory compliance, particularly as indoor air quality standards tighten in major markets including the European Union and China. In fuel cell vehicle (FCV) platforms, polymer electrolyte membranes remain a critical performance variable: proton exchange membrane fuel cells (PEMFCs) are the most commonly used fuel cell technology for vehicles, and membrane durability across wide current density ranges directly determines system output and longevity. Potential regulations restricting per- and polyfluoroalkyl substances (PFAS) could heavily impact the market for incumbent ionomer membranes such as Nafion, creating demand for alternative polymer chemistries of the type Advincula's group develops.
For battery electric vehicle (BEV) platforms, precision-engineered separation membranes apply to thermal fluid management: selective polymer membranes and adsorbent materials can improve particulate control within cooling circuits, protecting heat exchangers and extending service intervals. The shift toward electric vehicles is increasing demand for fine filtration in battery venting and cabin air quality systems, according to market analysis-a trend that also affects expanded polytetrafluoroethylene (ePTFE) filter films and specialty nonwoven media used in EV battery enclosures.
Advincula also integrates artificial intelligence into materials discovery. The AutoFlowS platform uses AI-guided, continuous-flow experiments in a closed loop, automatically adjusting conditions to accelerate polymer and materials discovery. According to Advincula, "I am very honored to receive the Frank Tiller Award from AFS, which is a hallmark and inflection point for research and mentoring in separations science and engineering."
Outlook
Translating laboratory-scale membrane architectures into qualified automotive components requires navigating established Tier 1 validation processes and materials traceability requirements, placing the commercialization timeline in years rather than months. The intersection of PFAS regulatory uncertainty and growing EV platform demand, however, is expected to accelerate OEM interest in novel polymer membrane chemistries. ORNL's Macromolecular Nanomaterials Group has previously led major projects in fiber composites with DOE's Office of Energy Efficiency and Renewable Energy and Advanced Manufacturing Office, providing an existing framework for technology transfer into automotive supply chains.
