报告介绍 Abstract： Here we report a recent joint experimental photoelectron spectroscopy (PES) and quantum chemical calculations study in our group: observation of highly stable and symmetrical lanthanide octa-boron inverse sandwich clusters-La2B8- and Pr2B8-.PES spectra showed simple patterns of these two clusters, suggesting highly symmetric structures. Quantum chemical calculations revealed that bot...

报告介绍 Abstract： Quantum anomalous Hall (QAH) systems are of great fundamental interest and of potential application (e.g. quantum computing) because of dissipationless conduction without external magnetic field.1–3 The QAH effect has been realized in magnetically doped topological insulator (TI) thin films.4–7 However, full quantization requires extremely low temperature (<50 mK) in the in...

报告介绍 Abstract： Since two-dimensional (2D) materials were discovered, particularly graphene and graphene oxide (GO), intensive efforts have been made on utilising these materials as building blocks to form laminar membranes via various methods. The unique 2D channels in these laminar membranes offer a new approach to control the mass transport, which might have some promising potentials in various applic...

报告介绍 报告摘要： 　　产电微生物能够催化降解有机物，将有机物蕴含的化学能转化为电能，具有清洁高效、原位利用/循环利用的优点。然而，微生物催化产业化的前提和难点问题是如何大幅度提高微生物催化降解有机物产电的效率。本质上，微生物催化降解有机物产电的效率主要受微生物胞外电子转移速率制约，因此强化微生物的附着力及电子传递能力可以提升微生物催化降解有机物产电的效率。针对微生物电子传递路径，设计了具有大的孔道、良好的导...

报告介绍 Abstract： Use of synthetic organic approaches1a for the preparation of novel aniline-based materials allow us to exploit their tuneable conductive, redox and optical properties.1b We have thus explored the use of such and related materials in two key areas: Functional 1D Wires: We are exploiting this functional aniline-based platform to prepare novel redox-active cationic surfactants, and inve...

报告介绍 报告摘要： We are fosucsed on protein misfolding and aggregation that occur in stressed cells with deficient proteostasis. These molecular events have been associated with a variety of diseases that are termed as protein misfolding diseases. Protein aggregation is a multiple step process that involves misfolded soluble and insoluble aggregates. It is unclear which of these conformations could lead t...

报告介绍 Abstract： The past decade has witnessed intensive research aimed at investigating the role of band-structure topology and discovering topological materials. In this talk, I will introduce our most recent progress on novel topological phases discovered in a well-known family of compounds, transition metal dichalcogenides (WTe2 and MoTe2). These phases include the Weyl semimetal, the monopole-nodal-r...

报告介绍 Abstract:　　In van der Waals (vdW) heterostructures formed by stacking two monolayer semiconductors, lattice mismatch or rotational misalignment introduces an in-plane moiré superlattice. While it is widely recognized that a moiré superlattice can modulate the electronic band structure and lead to novel transport properties including unconventional superconductivity and insulating beh...

报告介绍 Abstract： Nanostructured materials have become critically important in many areas of technology, ranging from renewable energy, electronics, photonics, to biology and medicine, because of their unusual physical/chemical properties due to confined dimensions of such materials. This talk will present a new class of polymeric materials we developed recently: nanostructured functional polymer gels that...

报告介绍 Abstract： 　　Symmetry, interaction and topological effects, as well as environmental screening, dominate many of the quantum properties of reduced-dimensional systems and nanostructures. These effects often lead to manifestation of counter-intuitive concepts and phenomena that may not be so prominent or have not been seen in bulk materials.In this talk, I present some fascinating physical phenomen...

报告介绍 Abstract：　　Generation of hot carriers in transition metal catalysts through photoexcitation has been demonstrated to be a promising approach capable of significantly lowering activation temperature of the catalysts, which could have a widespread impact on substantially reducing the current energy demands and improving the selectivity of heterogeneous catalysis. Plasmonic nanoparticles made o...

报告介绍 Abstract：　　Recent advances in nanomaterials synthesis make it possible to achieve nanocrystals with crystallographically defined surface facets, composition and high surface area, which can be considered as ideal model systems for catalytic studies under realistic conditions. In this work, I will showcase how we can make use of nanoshapes of binary oxide (ceria) and ternary oxide (SrTiO3 perovski...

报告介绍 Abstract:Topological matters have attracted lots of attention in recent years because of their interesting and exotic properties. One such property is the existence of unidirectional and topologically protected surface/edge states that are robust against internal and external perturbations. The study was initially exclusive for electron systems and was believed to be a quantum phenomenon. It is now ...

报告介绍 Abstract： Solar energy conversion and storage into a high density energy medium e.g H2 via water splitting has been attracting substantial interest over the last decade, which can provide not only renewable H2 fuel but also a carbon-zero economy. The key in this technology is an efficient photocatalyst. The current low efficiency in water splitting to H2 fuel process is contributed to both fast cha...

报告介绍 Abstract： We present a theoretical model that describes how nonelectrostatic (van der Waals) interactions of electrolyte ions influence adsorption of the ions at electrode surfaces. The model enables the dependence of the capacitance on the specific electrolyte to be described using a modified Poisson-Boltzmann formalism employing quantum chemical calculations for van der Waals interactions. We com...

报告介绍 Abstract：  Harnessing quantum coherence and prethermalization has emerged as a cross-cutting theme for discovering and controlling emergent, even thermodynamically forbidden, states of matter. In this talk, I will discuss our recent progress towards applying these new tuning knobs to reveal quantum dynamics and achieve coherent control in several systems of current focus including superconduct...