2D Materials for Energy Storage

Joe Morgensternjmorgens@umd.edu

Science, Discovery and the Universe

Material Science and Engineering

Introduction

Conclusions

Methods

Results

Thank you to my partner Allie Orr, my mentor Steve Lacey, and my advisor Dr. Liangbing Hu

This project involved the

study and research of 2D

materials, specifically for

energy storage. Materials such

as MoS2 and holey graphene

were used in the research of

batteries and electrodes. This

capstone took place at Dr.

Hu’s lab in the Energy

Research Center. I worked

with my partner Allie Orr,

and my mentor Steve Lacey.

Mechanical exfoliation was

used to reduce MoS2 to

<10nm in thickness

Through this research, I learned

a lot of information about the

properties of materials. I

learned the importance of P-N

Junctions, how nanoparticle

size can affect porosity, and that

the properties of many

materials change on the 2D

scale. All of this information

will give me real-world

experience in this field and I

look forward to what the future

has in store.

We successfully produced a free-

standing holey graphene

membrane that looks promising.

This is still undergoing analysis

and we are awaiting the results.

Further research will be done on this

subject. We are still awaiting many

test results, but preliminary data is

promising. There is a lot of potential

for improvement and my goal is to

continue this work on 2D materials

in the future.

Courtesy of BingNano

8 tons of hydraulic pressure

was used to compress holey

graphene

Future Plans

This is an optical image of the

2D MoS2 flakes that we were

able to produce. These flakes

have a band gap of ~1.8eV

The purpose of this capstone project

was to give me real world experience

in the field of materials research and

development. The main goal was to

work with two different two-

dimensional materials to improve

existing battery technology.

Molybdenum Disulfide (MoS2)

needed to be transformed into a

monolayer structure for future planar

battery applications and holey

graphene was used to produce a

carbon-based porous membrane for

our future Lithium-Air battery setup.

Acknowledgements

Purpose

Photo Courtesy of: Jiaqi Dai