Nanochem Research Group

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Research Macrocyclic-based Approach

Macrocyclic chemistry is the switch in viewpoints on how to achieve a systematic chemical design. In the last decade, macrocyclic ligands have received more attention mainly because of their wide application in the field of synthesis and catalysis. The attraction is still growing, so that a considerable research effort is today devoted to the synthesis of new macrocyclic complexes of transition metal ions to further develop the applications in both catalysis and material chemistry. The following systematic scheme is associated with the substitution effect on the quantum and electrochemical parameters of MPcs (specially for MnPc, FePc and CoPc) to make more clear and easy understanding of the sicientific motivations from their chemical modifications.


Supramolecular-based Approach

Beyond the macrocyclic chemistry, which is predominantly based upon the covalent bonding of atoms, supramolecular chemistry is based upon intermolecular interactions, i.e. on the association of two or more building blocks, which are held together by intermolecular interactions such as hydrogen bonding, p-p stacking, dipole-dipole, metal–ligand interactions. Most often, in supramolecular catalysis, supramolecular forces bring together parts of the ligand or the cavity in which the reaction takes place, or they provide an extra interaction of substrates and catalysts to enhance rates or selectivities. The following figure showed a systematic comparision bwtween the scope of molecular and supramolecular chemistry.

 


H2/O2 involving electrocatalytic reactions with molecular catalyst

Energy conversion processes, oxygen reduction reaction (ORR), oxygen and hydrogen evolution reactions (OER and HER) with remarkable sustainability and high efficiency are greatly desired owing to the challenge related to their sluggish kinetics. In case of heterogeneous catalysis, the interaction between the active site and target molecules (like O2, H2, and CO2) is the crucial step and this step can be correlated with the discrete energy levels for molecular catalysts whereas it can be connected with the d-band for SACs. Having possessed the merits of heterogeneous and homogeneous catalysts, SACs have enormous potential to bridge their catalytic process.


Dr. Anuj Kumar

Anuj Kumar is currently working as an assistant professor in the department of chemistry, GLA University, Mathura, India. He completed his Ph.D. in 2017 under the supervision of Prof. Randhir Singh at Gurukula Kangri University, Haridwar. He joined Prof Xiaoming Sun’s research group as Post Doctoral Fellow at Beijing University of Chemical Technology, China for two years (2017-19). During his post-doctoral program, he has also been guiding many overseas students for their research. So far, he has published 35 research publications in ‘International peer-refereed journals’ and 3 book chaptors in an elsevier. Currently, He is guiding 3 doctoral and 4 Masters’ and 4 UG theses. He is working broadly in the field of Macrocyclic Chemistry, Bioinorganic Chemistry, Electrochemistry, Fuel Cell Technology, Nano Chemistry. He has an expertise in the development of activity and reactivity descriptors for molecular-based electrocatalysts for oxygen reduction reaction, oxygen evolution reaction, and design of new molecular catalysts supported on nanocarbons.

Dr. Anuj Kumar has received Young Researcher 2020 Award from CEGR.


Dr. Vinod Kumar Vashistha

Vinod Kumar Vashistha completed his Ph.D. in Chemistry from IIT Roorkee in Jul 2016. He has published 28 research publications in ‘international refereed journals’ and 1 book in Indian publication houses. Currently, he is guiding 2 doctoral and 3 Masters’ and 4 UG theses. His current area of research includes development of materials for chiral separation, separation science, synthetic organic chemistry, synthesis of chiral derivatizing reagents, macrocyclic chemistry, and electrochemical studies.

Anuj Kumar*, Vinod Kumar Vashistha, Dipak Kumar Das, Recent Development on Metal Phthalocyanines based Materials for Energy Conversion and Storage Applications, Coordination Chemistry Reviews, 2020, 213678.

Mang Ma, Anuj Kumar, Danni Wang, Yiyan Wang, Yin Jia, Ying Zhang, Guoxin Zhang, Zifeng Yan, Xiaoming Sun, Boosting the bifunctional oxygen electrocatalytic performance of atomically dispersed Fe site via atomic Ni neighboring, Applied Catalysis B: Environmental, 274, 119092.

Tete Zhao, Anuj Kumar, Xuya Xiong, Mang Ma, Yiyan Wang, Ying Zhang, Stefano Agnoli, Guoxin Zhang, Xiaoming Sun, Assisting atomic dispersion of Fe in N-doped carbon by aerosil for high-efficiency oxygen reduction, ACS Applied Materials & Interfaces.

Anuj Kumar, Yun Kuang, Zheng Liang, Xiaoming Sun, Microwave Chemistry, Recent Advancements and Eco-Friendly Microwave-Assisted Synthesis of Nanoarchitectures and Their Applications: A Review, Currently Accepted in Material Today Nano, 2020.

Yiyan Wang, Anuj Kumar, Mang Ma, Yin Jia, Yu Wang, Ying Zhang, Guoxin Zhang, Xiaoming Sun, Zifeng Yan, Hierarchical peony-like FeCo-NC with conductive network and highly active sites as efficient electrocatalyst for rechargeable Zn-air battery, Currently Accepted in Nano Research, 2020

Vinod Kumar Vashistha, Anuj Kumar, Stereochemical facets of clinical ß-blockers: An overview, Chirality. 2020, 1–14.

Vinod Kumar Vashistha, Anuj Kumar?, Design and synthesis of MnN4 macrocyclic complex for efficient oxygen reduction reaction electrocatalysis, Inorganic Chemistry Communications 112 (2020) 107700-107706.

Anuj Kumar, Ying Zhang, Wen Liu, Xiaoming Sun, The Chemistry, Recent Advancements and Activity Descriptors for Macrocycles Based Electrocatalysts in Oxygen Reduction Reaction, Coordination Chemistry Reviews, 2020, 402, 213047.

Tengfei Gao1, Anuj Kumar1, Zhicheng Shang, Xinxuan Duan, Hangchao Wang, Shiyuan Wang, Shengfu Ji, Dongpeng Yan, Liang Luo, Wen Liu, Xiaoming Sun, Promoting electrochemical conversion of CO2 to formate with rich oxygen vacancies in nanoporous tin oxides, Chinese Chemical Letters, 2019, 1, 1-7.

Anuj Kumar and Vinod Kumar Vashistha, Design and synthesis of CoIIHMTAA-14/16 macrocycles and their nano-composites for oxygen reduction electrocatalysis, RSC Adv., 2019, 9, 13243.

Aijuan Han, Bingqing Wang, Anuj Kumar, Yongji Qin, Jing Jin, Xinhe Wang, Can Yang, Bo Dong, Yin Jia, Junfeng Liu, and Xiaoming Sun, Recent Advances for MOF-Derived Carbon-Supported Single-Atom Catalysts, Small Methods, 2019, 1800471-1800492.


 

Dr. Anuj Kumar
Assistant Professor,
Department of Chemistry ,
Institute of Applied Sciences and Humanities
Room no. 021, Academic Block X,
GLA University, 17 Km Stone, NH-2, Mathura-Delhi Road,
Post-Chaumuhan, Mathura, UP. INDIA, Pin Code- 281 406
E mail Id: anujkumar9791@gmail.com
Mob: +91-8923302899