Article
Biochemistry & Molecular Biology
Katja Bedbur, Nadja Stucke, Lina Liehrs, Jan Krahmer, Felix Tuczek
Summary: Three molybdenum trihalogenido complexes supported by different (PNP)-P-3 pincer ligands were synthesized and investigated for catalytic N-2-to-NH3 conversion. The H-(PNPtBu)-P-3 ligand showed the highest yields, and the corresponding Mo(V)-nitrido complex also exhibited good catalytic activity. Experiments on the formation of the analogous Mo(IV)-nitrido complex suggested that the catalytic mechanism of ammonia formation mediated by these systems follows the classic Chatt cycle, rather than N-N cleavage of a dinuclear Mo-dinitrogen complex.
Article
Chemistry, Multidisciplinary
Menglei Yuan, Junwu Chen, Yong Xu, Rongji Liu, Tongkun Zhao, Jingxian Zhang, Zhongyu Ren, Zhanjun Liu, Carsten Streb, Hongyan He, Chao Yang, Suojiang Zhang, Guangjin Zhang
Summary: The study achieved efficient conversion of CO2 and N-2 into urea by precisely designing unique frustrated Lewis pairs in flower-like nickel borate crystals. Through the synergistic action of Lewis acidic and basic sites, inert gases were captured and activated, ultimately achieving high urea yield rates.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Yan Zhang, Jia-Zhi Wang, Kai Li, Miao-Miao Shi, Zi Wen, Meng-Gai Jiao, Di Bao
Summary: Ammonia is considered an important chemical and potential energy source. In this study, we found that by doping Co atoms, the Co-LNO catalyst with a high spin configuration demonstrated excellent performance in the electrocatalytic nitrogen reduction reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Moumita Mukherjee, Sayan Dutta, Madhusudan Ghosh, Partha Basuchowdhuri, Ayan Datta
Summary: This study explores the activity of transition metal catalysts embedded on carbon nitride for nitrogen reduction reaction. Through a combination of density functional theory and machine learning models, it is found that Ta-based C6N6 is a promising catalyst for nitrogen reduction to ammonia.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Hiroki Toda, Kaito Kuroki, Ryoichi Kanega, Shogo Kuriyama, Kazunari Nakajima, Yuichiro Himeda, Ken Sakata, Yoshiaki Nishibayashi
Summary: The study presents a manganese-catalyzed oxidative conversion of ammonia into dinitrogen, which can be conducted under chemical or electrochemical conditions. Under chemical conditions, up to 17.1 equivalents of N-2 per catalyst are generated, while under electrochemical conditions, the reaction proceeds with 96% faradaic efficiency to give up to 6.56 equivalents of N-2 per catalyst.
Article
Chemistry, Multidisciplinary
Michael Bowker, Serena DeBeer, Nicholas F. Dummer, Graham J. Hutchings, Matthias Scheffler, Ferdi Schueth, Stuart H. Taylor, Harun Tueysuez
Summary: Catalysis plays a significant role in the manufacturing industry and contributes greatly to the global domestic product. However, the understanding of heterogeneous catalysis lags behind other fields. FUNCAT aims to address the challenges of heterogeneous catalysis in green industry and the circular economy, with a focus on critical processes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Yong-Qi Ding, Zhi-Ying Chen, Feng-Xiang Zhang, Jia-Bi Ma
Summary: Herein, we report the direct coupling of N-2 and O-2 mediated by heteronuclear metal anions AuNbBO- to generate NO molecules. The mechanism involves the formation of AuNbBON2(-) followed by the release of two NO molecules through reactions with two O-2 molecules. Nitreneradical (N·-) and superoxide radical (O-2·-) play crucial roles in the reactions, and the process is labeled as a Zeldovich-like mechanism.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Michael D. Zott, Jonas C. Peters
Summary: This study details Fe-mediated AO electrocatalysis with a high TON and fast AO rate, highlighting the promising potential of Fe as a metal catalyst for further development in metal-mediated AO catalysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Steffen Reichle, Michael Felderhoff, Ferdi Schuth
Summary: This study presents a new method for continuous ammonia production at room temperature and low pressure, achieving a breakthrough in the Haber-Bosch process. By optimizing experimental conditions, an efficient iron catalyst was successfully developed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Physical
Dharik S. Mallapragada, Yury Dvorkin, Miguel A. Modestion, Daniel V. Esposito, Wilson A. Smith, Bri-Mathia Hodge, Michael P. Harold, Vincent M. Donnelly, Alic Nuz, Casey Bloomquist, Kyri Baker, Lars C. Grabow, Yushan Yan, Nav Nidhi Rajput, Ryan L. Hartman, Elizabeth J. Biddinger, Eray S. Aydil, Andre D. Taylor
Summary: The chemical industry is a major contributor to the global economy and employment, but it is also a significant source of greenhouse gas emissions. To address the increasing demand for chemical products and reduce emissions, it is crucial to develop sustainable production methods powered by low-carbon electricity. This perspective discusses the challenges and opportunities of decarbonizing the chemical industry through electrification, presenting four technological pathways. Integrating an electrified industrial process with the power sector can greatly facilitate the decarbonization of the chemical industry sector.
Article
Chemistry, Multidisciplinary
David N. Stephens, Robert K. Szilagyi, Paige N. Roehling, Navamoney Arulsamy, Michael T. Mock
Summary: We have reported a nickel complex that can catalyze the oxidation of ammonia to dinitrogen under ambient conditions. By using aryloxyl or N-oxyl radicals as H atom acceptors, the N-H bonds of coordinated NH3 ligands can be cleaved to generate N-2 molecules. Isotopic nitrogen studies have identified a bridging Ni-hydrazine product, supported by computational models, indicating a bimetallic homocoupling mechanism for N-N bond formation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Energy & Fuels
Haojie Li, Zhen Yao, Yilin Zhu, Xuetao Wang
Summary: This study investigates the influence of solvent type and properties on catalytic hydrogen production from ammonia borane. The results show that both acid and alkali can improve the efficiency of hydrogen production. The alkaline solution enhances the hydrolysis of ammonia borane by activating the H-O bond of water molecules. The hydrogen production rate and yield are lower in alcohol solvents compared to water, possibly due to the different strength of the O-H bond in the alcohol molecules.
Article
Chemistry, Physical
Shi He, Yufeng Chen, Mengdi Wang, Hanggai Nuomin, Peter Novello, Xueqian Li, Siyuan Zhu, Jie Liu
Summary: Ammonia is a promising hydrogen mediator that reduces the cost of hydrogen transportation, but improvements are needed for extracting hydrogen. Ammonia electrolysis is a convenient method for low-cost hydrogen production. Nickel-cobalt nitride nanosheets show high electrocatalytic activity for the ammonia oxidation reaction in non-aqueous solutions.
Article
Chemistry, Physical
Lan-Ye Chu, Ming Wang, Jia-Bi Ma
Summary: The activation of carbon dioxide by NbBN2- cluster anions under thermal collision conditions results in the formation of a novel molecule NCNBO-. This reaction is mediated by NbB- anions and involves the donation of electrons from Nb and B atoms to reduce CO2. The generation of NCNBO- from the coupling of N-2 and CO2 is thermodynamically and kinetically favorable.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Daniela V. Fries, Matthias P. Klein, Annika Steiner, Marc H. Prosenc, Gereon Niedner-Schatteburg
Summary: The study explores the cryogenic kinetics of N-2 adsorption to Ta-4(+) and the infrared signatures of [Ta-4(N-2)(m)](+)complexes, m = 1-5. Experimental and theoretical findings support a mechanism of N-2 cleavage, with high N-2 exposure leading to self-poisoning.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Zhiliang Chen, Xiaojie Liu, Chuixiu Huang, Jilai Li, Xiantao Shen
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Jilai Li, Caiyun Geng, Thomas Weiske, Helmut Schwarz
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Jilai Li, Caiyun Geng, Thomas Weiske, Helmut Schwarz
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Jilai Li, Caiyun Geng, Thomas Weiske, Mingfei Zhou, Jun Li, Helmut Schwarz
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Physical
Jose M. Mercero, Elixabete Rezabal, Jesus M. Ugalde, Thomas Weiske, Jilai Li
Summary: Using Fourier-transform ion cyclotron resonance mass spectrometry, it was experimentally determined that Sc+ reacts with SO2 in the gas phase to form ScO+ and SO. Quantum chemical calculations confirmed the exoergic nature of the multi-step process and the energetically favorable intermediates and transition states. The oxygen exchange reaction between ScO+ and SO2 is facilitated by the formation of a highly symmetric cyclic intermediate.
Article
Chemistry, Multidisciplinary
Thomas Weiske
Summary: This article provides selected personal reminiscences from Prof. Helmut Schwarz's decades of interaction with his research group, in celebration of his 80th birthday.
ISRAEL JOURNAL OF CHEMISTRY
(2023)