Shivaraj on successfully defending his dissertation and becoming Dr. Shivaraj B. Patil!

Dr. Shivaraj B. Patil received his PhD’s degree from Tunghai University, Taiwan in 2021. In the three years of his PhD life, He focuses on electrocatalytic catalysis and energy storage systems. He has published five first-author papers on JMCA, Small, PCCP and ACS AMI, etc. The Di-Yan Lab wishes you the very best luck in your future.

0609 18a19 0609 1 f24c5

Enhanced N2 Affinity of 1T-MoS2 with Unique Pseudo Six-membered Ring Consisting of N—Li—S—Mo—S—Mo for High Ambient Ammonia Electrosynthesis Performance

Shivaraj B. Patil,1#Hung-Lung Chou,2# Yu-Mei Chen,1 Shang-Hsien Hsieh,3 Chia-Hao Chen,3 Chia-Che Chang,1 Shin-Ren Li,1 Yi-Cheng Lee,1 Ying-Sheng Lin,1 Hsin Li,1 Yuan Jay Chang,1 Ying-Huang Lai,1 Di-Yan Wang1*

Accepted by J. Mater. Chem. A

The Haber–Bosch process is widely used to convert atmospheric nitrogen (N2) into ammonia (NH3). However, the extreme reaction conditions and abundant carbon released by this process make it important to develop a greener NH3 production method. The electrochemical nitrogen reduction reaction (NRR) is an attractive alternative to the Haber–Bosch process. Herein, we demonstrated that molybdenum sulfide on nickel foil (1T-MoS2-Ni) with low crystallinity was an active NRR electrocatalyst. 1T-MoS2-Ni achieved a high faradaic efficiency of 27.66% for the NRR at −0.3 V (vs. RHE) in LiClO4 electrolyte. In-situ X-ray diffraction and ex-situ X-ray photoemission analyses showed that lithium ions intercalated into the 1T-MoS2 layers during the NRR.Moreover, theoretical calculations revealed the differences between six membered rings formed in the 1T-MoS2 and 2H-MoS2 systems with Li intercalation. The bond distances of d(Mo—N) and d(N—Li) of in Li-1T-MoS2 were found to be shorter than those in Li-2H-MoS2, resulting in a lower energy barrier of N2 fixation and higher NRR activity. Therefore, 1T-MoS2-Ni is promising as a scalable and low-cost NRR electrocatalyst with lower power consumption and carbon emission than the Haber–Bosch process.

                                           TOC d068f


Shivaraj B. Patil, Hsiang-Ju Liao and Di-Yan Wang*

Accepted by Phys. Chem. Chem. Phys. on 14 Oct., 2020, 

Population explosion has led to the rapid revolution of science and technology. High energy demand has urged for new and efficient energy conversion and storage systems. Lithium ion batteries (LIBs) have high potential window, high capacity and high stability but it suffers from high cost and low safety. Therefore, many alternative batteries including sodium (NIBs), potassium (KIBs), aluminum (AIBs) and dual ion batteries (DIBs) have been introduced. One of working principle of these batteries is based on cation or anion intercalation in the graphite layers, which are known as formation of graphite intercalation compounds (GICs). Recently, the studies based on reaction mechanism to improve the performance of the batteries have been elucidated. In this review, a view on reaction mechanism of polyatomic ions intercalated into GICs, structure of intercalated polyatomic ions, structure of accommodated GICs and staging are provided. The current limitations and our prospects on polyatomic ions intercalated batteries are also discussed.

1 78c44

17 July 2020, our work Review Article "Exploration and Investigation of Periodic Elements for Electrocatalytic Nitrogen Reduction" has been accepted on Small

Shivaraj B. Patil, Di-Yan Wang*

2020: Exploration and Investigation of Periodic Elements for Electrocatalytic Nitrogen Reduction

Small 2020, Just accepted.

Heatmap of periodic table based on the faradaic efficiency of the elements towards NRR.

1 ebc60

15 May 2020, our work "A Quinone-Based Electrode for High Performance Rechargeable Aluminum Ion Batteries with Low-cost AlCl3-urea Ionic Liquid Electrolyte" has been accepted on ACS Applied Materials & Interfaces

Yu-Ting Kao, Shivaraj B. Patil, Chi-Yao An, Shao-Ku Huang, Jou-Chun Lin, Tien-Sheng Lee, Yi-Cheng Lee, Hung-Lung Chou, Chun-Wei Chen, Yuan Jay Chang, Ying-Huang Lai, Di-Yan Wang*2020: A Quinone-Based Electrode for High Performance Rechargeable Aluminum Ion Batteries with Low-cost AlCl3-urea Ionic Liquid Electrolyte,

ACS Appl. Mater. Interfaces 2020, Just accepted.

                                                        Cover figure 06c22