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Journal of Organic & Inorganic Chemistry
ISSN 2472-1123
2
n d
E d i t i o n o f E u r o S c i C o n C o n f e r e n c e o n
Chemistry
F e b r u a r y 1 9 - 2 0 , 2 0 1 9
P r a g u e , C z e c h R e p u b l i c
Chemistry 2019
P
orous materials displaying a multiscale and interconnected porosity are of critical interest for a wide range of applications
involving mass transfer such as heterogeneous catalysis, supported catalysis, adsorption and energy storage. In the last
decades, much effort has been given to prepare such materials with porosity on different length scales, so-called hierarchical
porous materials, that combine the structural advantages of macropores (i.e. pore diameter ø>50 nm), mesopores (i.e. 2<ø<50
nm) and micropores (i.e. ø<2 nm). While macropores can improve mass transport and accessibility through the whole pore
network, micro- and mesopores provide high specific surface area. In our group, we develop various innovative approaches
(e.g. emulsion, spinodal decomposition, gelation/drying, solvothermal treatment, silica-based sacrificial template) to synthesize
hierarchical porous carbons and composites from lignocellulosic biomass (e.g. saccharides, polysaccharides, lignocellulosic
agrowastes). Those approaches allow a fine control over textural and morphological properties and yield porous functional
carbons with promising properties as adsorbents, (bio) catalytic supports, electrocatalysts or additives for lithium-ion battery
electrodes. Besides textural and morphological control, we are interested in the preparation of monolithic porous carbons. Those
monolithic carbons display tuneable macroporosity (from 3 to 40 µm), bimodal mesoporosity and high specific surface area
(>1000 m2g-1). They can be integrated in flow through devices for catalysis and adsorption. In particular, flow through biocatalytic
reactors were recently developed for the production of formate from carbon dioxide via the co-immobilization of two enzymes
within those hierarchical porous carbon monoliths. We could produce four mmol formate per mg of enzyme during three days,
which is the highest formate productivity reported to date regarding biocatalytic processes.
nicolas.brun@enscm.frMultiscale porous carbons: from design to
application
Nicolas Brun
ICGH-UMR 5253, CNRS-ENSCM-UM, Université de Montpellier, France
J Org Inorg Chem 2019, Volume: 5
DOI: 10.21767/2472-1123-C1-021