The rechargeable aluminum battery: opportunities and challenges

H Yang, H Li, J Li, Z Sun, K He… - Angewandte Chemie …, 2019 - Wiley Online Library
Aluminum battery systems are considered as a system that could supplement current lithium
batteries due to the low cost and high volumetric capacity of aluminum metal, and the high …

[HTML][HTML] Spatial control of defect creation in graphene at the nanoscale

AW Robertson, CS Allen, YA Wu, K He, J Olivier… - Nature …, 2012 - nature.com
Defects in graphene alter its electrical, chemical, magnetic and mechanical properties. The
intentional creation of defects in graphene offers a means for engineering its properties. …

Atomic structure and dynamics of metal dopant pairs in graphene

Z He, K He, AW Robertson, AI Kirkland, D Kim, J Ihm… - Nano …, 2014 - ACS Publications
We present an atomic resolution structural study of covalently bonded dopant pairs in the
lattice of monolayer graphene. Two iron (Fe) metal atoms that are covalently bonded within the …

Shape Evolution of Monolayer MoS2 Crystals Grown by Chemical Vapor Deposition

…, Y Fan, M Pacios, H Bhaskaran, K He… - Chemistry of …, 2014 - ACS Publications
Atmospheric-pressure chemical vapor deposition (CVD) is used to grow monolayer MoS 2
two-dimensional crystals at elevated temperatures on silicon substrates with a 300 nm oxide …

Removal of heavy metal ions from aqueous solution by zeolite synthesized from fly ash

K He, Y Chen, Z Tang, Y Hu - Environmental Science and Pollution …, 2016 - Springer
Zeolite was synthesized from coal fly ash by a fusion method and was used for the removal
of heavy metal ions (Pb 2+ , Cd 2+ , Cu 2+ , Ni 2+ , and Mn 2+ ) in aqueous solutions. Batch …

Large single crystals of graphene on melted copper using chemical vapor deposition

…, Y Fan, S Speller, GL Creeth, JT Sadowski, K He… - ACS …, 2012 - ACS Publications
A simple method is presented for synthesizing large single crystal graphene domains on
melted copper using atmospheric pressure chemical vapor deposition (CVD). This is achieved …

Multiphoton absorbing materials: molecular designs, characterizations, and applications

GS He, LS Tan, Q Zheng, PN Prasad - Chemical reviews, 2008 - ACS Publications
In the first quarter of the twentieth century, one of the most significant events in physics and
chemistry was the establishment of the quantum theories of radiation, matter, and their …

Reliable liquid electrolytes for lithium metal batteries

H Yang, J Li, Z Sun, R Fang, DW Wang, K He… - Energy storage …, 2020 - Elsevier
Lithium metal is considered a promising anode material because of its high specific capacity
and low redox potential. However, there are two factors that prevent a lithium metal anode …

Rippling graphene at the nanoscale through dislocation addition

JH Warner, Y Fan, AW Robertson, K He, E Yoon… - Nano …, 2013 - ACS Publications
Ripples in graphene are an out-of-plane distortion that help stabilize suspended monolayer
graphene. The introduction of disclinations and dislocations into the lattice of graphene is …

Dynamics of single Fe atoms in graphene vacancies

AW Robertson, B Montanari, K He, J Kim, CS Allen… - Nano …, 2013 - ACS Publications
Focused electron beam irradiation has been used to create mono and divacancies in graphene
within a defined area, which then act as trap sites for mobile Fe atoms initially resident …