Prof. Richard E. Palmer
Nanomaterials Lab, Swansea University, UK
地点:唐仲英楼 A313
时间:2019-01-22 10:00
Size-selected nanoparticles (atomic clusters), deposited onto supports from the beam in the absence of solvents, represent a new class of model systems for catalysis research and potentially small-scale industrial manufacturing of selective catalysts. To translate these novel and well-controlled systems into practical use, two major challenges have to be addressed.(1) Very rarely have the actual structures of clusters been obtained from direct experimental measurements, so the metrology of these new material systems has to improve. The availability of aberration-corrected HAADF STEM is transforming our approach to this structure challenge [1,2]. I will address the atomic structures of size-selected Au clusters, deposited onto standard carbon TEM supports from a mass-selected cluster beam source. (2) A second major challenge is scale-up, needed to enable the beautiful physics and chemistry of clusters to be exploited in applications, notably catalysis [4]. In an effort to address this scale-up challenge, I will discuss the development of a new kind of nanoparticle source, the “Matrix Assembly Cluster Source” (MACS) [4-6]. [1] Z.Y. Li et al, Nature 451 46 (2008).[2] Z.W. Wang and R.E. Palmer, Phys. Rev. Lett. 108 245502 (2012).[3] P.R. Ellis et al, Faraday Discussions 188 39 (2016).[4] R.E. Palmer et al. Acc. Chem. Res. 51 2296 (2018).[5] R.E. Palmer, L. Cao and F. Yin, Rev. Sci. Instrum. 87 046103 (2016).
BIORichard Palmer is Head of the Nanomaterials Lab in the College of Engineering of Swansea University, Wales, and Concurrent Professor in the School of Physics of Nanjing University, China. His research is focused on Cluster (Nanoparticle) Beam Deposition (CBD), including scale-up to the gram level plus and atomic structure/dynamics. Applications include catalysis, biomedicine, environmental standards and advanced materials for the IT sector. At Cambridge Richard was awarded an MA and PhD and afterwards held 1851, Clare College and Royal Society Fellowships. At Birmingham (1994-2017) he founded the UK's first nanosciencecentre. Awards include the IOP Boys Medal, an Honorary Doctorate from Hasselt University, the BVC Yarwood Medal and an EPSRC Senior Fellowship. He is a Fellow of the IOP, RSC and Learned Society of Wales. He has published ~400 papers with h index 55; also 18families of patent applications. Spin-out companies arising from his work include Inanovate, Irresistible Materials and Grove Nanomaterials. He is the Editor-in-Chief ofthe open-access review journal Advances in Physics: X (2016-, Taylor and Francis) and Series Editor of the Elsevier Book Series ‘Frontiers of Nanoscience’.