Electronic structure modulation of isolated Co-N4 electrocatalyst by sulfur for improved pH-universal hydrogen evolution reaction

Palani Sabhapathy obtained his Ph.D. degree from the Department of Chemistry, National Tsing Hua University in 2019 jointly with the Molecular science and technology program, Academia Sinica, Taiwan under the supervision of Prof. Kuei-Hsien Chen and Prof. Li-Chyong Chen. He is currently working as a postdoctoral research fellow at the Centre for Condensed Matter Sciences, National Taiwan University, Taiwan under the supervision of Prof. Li-Chyong Chen and Prof. Kuei-Hsien Chen. His research interests involve developing various nanomaterials for electrochemical energy conversions (water splitting, fuel cell and CO2 conversions) and understanding the reaction mechanism using in-situ studies.

Indrajit Shown received his M. Sc and a Ph.D. degree in Applied Chemistry from The Maharaja Sayajirao University of Baroda (India) (2008). He worked as a postdoctoral research fellow at the Institute of Atomic and Molecular Sciences (Academia Sinica) and Centre for Condensed Matter Sciences (National Taiwan University), Taiwan. Currently, he is an Assistant Professor at Amrita Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham (University) (India). His research interests involve developing various nanomaterials for advanced green energy applications such as photocatalysis, electrocatalysis, bio-fuels and energy storage.

Amr Sabbah obtained his bachelor’s degree in chemistry (2008) from the college of science, Menoufia University, Egypt. He is now a Ph.D. student at the Chemistry department, National Tsing Hua University jointly with the Molecular science and technology program, Academia Sinica, Taiwan, since 2014. His research focuses on the synthesis of Nano-structured semiconductors for the photoreduction of CO2 to produce hydrocarbons.

Raghunath Putikam was born in India and received Ph.D. (2006) under the guidance of Prof. K. Bhanuprakash, IICT, India. He worked as a Postdoctoral and Assistant Researcher in Prof. M. C. Lin’s group at National Chiao Tung University, Taiwan (2006 −2017). Currently, he is working as a Principal engineer for R&D at TSMC, Taiwan. He authored over 80 SCI publications and research interest is reactions and chemical kinetics in various fields such as Semiconductor process simulations (Selective deposition & Etching), combustion, atmosphere chemistry also materials such as solar and fuel cells, TiO2-hydrogenation, HER, CO2-reduction, 2D-materials, OLED, liquid crystals.

Jeng-Lung Chen received his Ph. D. degree in Physics from Tamkang University in 2012. He is an assistant scientist of the X-ray absorption group of the experiment facility division in the National Synchrotron Radiation Research Center (NSRRC) in Taiwan. He is currently the manager of quick-scanning X-ray absorption fine structure beamline (44A) in Taiwan Photon Source (TPS) at NSRRC.

Wei-Fu Chen received his Ph.D. degree from the Department of Chemical Engineering, National Cheng Kung University, Taiwan in 2009, followed by four years as a postdoc fellow at Brookhaven National Laboratory (2010–2014) and two years as an assistant research scholar at National Taiwan University (2015–2017). Currently, he is a senior scientist in Cabot Corporation, Billerica, Massachusetts. His research interests are materials development for energy applications.

M. C. Lin received a BSc degree from Taiwan Normal University (1959) and PhD degree from the University of Ottawa, Canada (1966). After postdoctoral works at the University of Ottawa and Cornell University, he joined the US Naval Research Laboratory in 1970 and became Head of Chemical Kinetic Section (1974–82) and Senior Scientist (1982–88). In 1986, he joined Emory University as Robert W. Woodruff Professor. He returned to Taiwan in 2005 to pursue renewable energy research. He has published over 600 papers on chemical kinetics and materials chemistry. He has received numerous awards and is a member of Academia Sinica, Taiwan.

Kuei-Hsien Chen obtained his Ph.D. degree from the Department of Applied Physics, Harvard University in 1989, followed by three years as a research scientist at General Electric Corporate R&D at Schenectady, New York. He returned to Taiwan and joined Academia Sinica in 1993. He is currently a Distinguished Research Fellow and the Director of the Institute of Atomic and Molecular Sciences at Academia Sinica and also jointly appointed by the Center for Condensed Matter Sciences at National Taiwan University. His research interests are in advanced materials and nanosciences targeted for energy applications such as photovoltaics, thermoelectrics, solar fuels and supercapacitors.

Li-Chyong Chen is a Distinguished Research Fellow in the Center for Condensed Matter Sciences and the Director of the Center of Atomic Initiative for New Materials at National Taiwan University (NTU). She received her Ph.D. in Applied Physics, Harvard University (1989); then, she has worked in the Materials Research Center at General Electric Corporate R&D, Schenectady, New York, and returned to Taiwan joining NTU in 1994. She is specialized in low-dimension nanomaterials and their applications for electronics, optoelectronics, energy and sensing. To date she has 16 patents, 16 book chapters/review articles and over 410 SCI papers, having total citations > 16,600 and an H-index of 65 till Oct. 10, 2020. She was elected as a Fellow of the Materials Research Society, USA, in 2010.

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