User profiles for Kai Leng

Kai Leng

Assistant Professor, The Hong Kong Polytechnic University
Verified email at cam.ac.uk
Cited by 7838

Molecularly thin two-dimensional hybrid perovskites with tunable optoelectronic properties due to reversible surface relaxation

K Leng, I Abdelwahab, I Verzhbitskiy, M Telychko… - Nature materials, 2018 - nature.com
Due to their layered structure, two-dimensional Ruddlesden–Popper perovskites (RPPs),
composed of multiple organic/inorganic quantum wells, can in principle be exfoliated down to …

Phase restructuring in transition metal dichalcogenides for highly stable energy storage

K Leng, Z Chen, X Zhao, W Tang, B Tian, CT Nai… - Acs Nano, 2016 - ACS Publications
Achieving homogeneous phase transition and uniform charge distribution is essential for good
cycle stability and high capacity when phase conversion materials are used as electrodes…

Porous 3D graphene-based bulk materials with exceptional high surface area and excellent conductivity for supercapacitors

…, F Zhang, X Yang, G Long, Y Wu, T Zhang, K Leng… - Scientific reports, 2013 - nature.com
Until now, few sp 2 carbon materials simultaneously exhibit superior performance for specific
surface area (SSA) and electrical conductivity at bulk state. Thus, it is extremely important …

Graphene-based Li-ion hybrid supercapacitors with ultrahigh performance

K Leng, F Zhang, L Zhang, T Zhang, Y Wu, Y Lu… - Nano Research, 2013 - Springer
There is a growing demand for hybrid supercapacitor systems to overcome the energy density
limitation of existing-generation electric double layer capacitors (EDLCs), leading to next …

A high-performance supercapacitor-battery hybrid energy storage device based on graphene-enhanced electrode materials with ultrahigh energy density

F Zhang, T Zhang, X Yang, L Zhang, K Leng… - Energy & …, 2013 - pubs.rsc.org
In pursuing higher energy density with no sacrifice of power density, a supercapacitor-battery
hybrid energy storage device—combining an electrochemical double layer capacitance (…

From bulk to molecularly thin hybrid perovskites

K Leng, W Fu, Y Liu, M Chhowalla, KP Loh - Nature Reviews Materials, 2020 - nature.com
Organic–inorganic hybrid perovskites have been intensively researched in the past decade
for their optoelectronic properties. The emergence of Ruddlesden–Popper perovskites, …

Hierarchically porous carbon plates derived from wood as bifunctional ORR/OER electrodes

…, D Zhao, X Chi, X Zhao, L Li, X Lu, K Leng… - Advanced …, 2019 - Wiley Online Library
Porous carbon electrodes have emerged as important cathode materials for metal–air
battery systems. However, most approaches for fabricating porous carbon electrodes from …

Controlling the Effective Surface Area and Pore Size Distribution of sp2 Carbon Materials and Their Impact on the Capacitance Performance of These Materials

…, F Zhang, G Long, T Zhang, K Leng… - Journal of the …, 2013 - ACS Publications
A series of sp 2 carbon materials with different specific surface area (SSA) and controlled
pore size distribution (PSD) were synthesized at large scale through a facile and low-cost …

Interface confined hydrogen evolution reaction in zero valent metal nanoparticles-intercalated molybdenum disulfide

Z Chen, K Leng, X Zhao, S Malkhandi, W Tang… - Nature …, 2017 - nature.com
Interface confined reactions, which can modulate the bonding of reactants with catalytic centres
and influence the rate of the mass transport from bulk solution, have emerged as a viable …

Exploring Ferroelectric Switching in α‐In2Se3 for Neuromorphic Computing

…, X Wang, Y Zhang, R Li, T Ma, K Leng… - Advanced Functional …, 2020 - Wiley Online Library
Recently, 2D ferroelectrics have attracted extensive interest as a competitive platform for
implementing future generation functional electronics, including digital memory and brain‐…