Article
Chemistry, Multidisciplinary
Shumpei Sadai, Yoshifumi Hashikawa, Yasujiro Murata
Summary: Two open-[60]fullerene-aniline conjugates were synthesized by incorporating diamine into [60]fullerene, resulting in the formation of thiazolidine-2-thione ring in the presence of CS2. The absorption edge was significantly shifted to 1200 nm by increasing the number of N,N-dimethylaniline moieties, indicating strong acceptor-donor interactions.
Article
Chemistry, Organic
Jinliang Ma, Tong-Xin Liu, Pengling Zhang, Xuna Zhao, Guisheng Zhang
Summary: A metal-free-catalyzed multicomponent annulation reaction using I2 as a catalyst has been developed for the construction of novel [60]fullerene-fused 1,2-tetrahydrocarbazoles. Mechanistic studies indicate that the reaction proceeds through I2-promoted generation of a 3-vinylindole structure followed by cycloaddition to [60]fullerene.
Article
Chemistry, Multidisciplinary
Jinliang Ma, Tong-Xin Liu, Pengling Zhang, Chuanjie Zhang, Guisheng Zhang
Summary: A new, general, and practical method for the spirocyclization of [60]fullerene has been presented through a palladium-catalyzed domino Heck/C-H activation reaction. A wide range of novel [60]fullerene-fused spirocyclic derivatives can be easily synthesized with broad substrate scope and excellent functional-group tolerance. A plausible mechanism involving an alkyl Pd(ii) species as a key intermediate has been proposed.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yoshifumi Hashikawa, Shumpei Sadai, Yasujiro Murata
Summary: In this study, we achieved bilateral pi-elongation in open-[60]fullerenes through consecutive nucleophilic additions at another site. The resulting pi-extended open-[60]fullerene contains two diaza[n]helicene (n = 5 and 6) motifs in its skeleton. Crystallographic analysis revealed close contacts of 3.09 and 3.14 angstrom between the helicene and fullerene.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yoshifumi Hashikawa, Nana Fujikawa, Shu Okamoto, Yasujiro Murata
Summary: The chemical stability of phosphorus ylides is significantly lowered when a carbonyl group in cage-opened C60 derivatives is replaced with a sulphide moiety, resulting in in situ hydrolysis and the formation of an alpha-methylene carbonyl compound. This change also causes a hypsochromic shift in the near-infrared absorption band.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Organic
Nikitas G. Malliaros, Ina D. Kellner, Thomas Drewello, Michael Orfanopoulos
Summary: A new one-step method for functionalizing C-60 with lactones has been developed, leading to the synthesis of a previously unknown class of materials, namely 1-lactonyl-2-hydro[60]fullerenes. The mechanism of this reaction has been proposed based on the structure of reaction products and deuterium-incorporated experiments.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Applied
Kyangzi Calderon-Cerquera, Alejandra Parra, Duvalier Madrid-Usuga, Andrea Cabrera-Espinoza, Carlos A. Melo-Luna, John H. Reina, Braulio Insuasty, Alejandro Ortiz
Summary: The novel compounds BDP(Pyr)2 and BDP(Iso)2 show strong interaction in the excited state, generating charged species between BODIPY and the two C-60 units. The electronic interaction is stronger in BDP(Iso)2 than in BDP(Pyr)2, likely due to isoxazoline ring conjugation. Fluorescence lifetime measurements confirm that BDP(Iso)2 performs better even at different solvent polarities.
Article
Chemistry, Organic
Xin-Rui Chen, Jun-Xiang Zhang, Shuai-Kang Zhu, Yi-Wen Li, Rong Yang, Jun Xuan, Fei Li
Summary: An unprecedented multicomponent domino reaction of [60]fullerene, indole, and DMSO/HCl has been developed for the efficient one-pot synthesis of diverse N-substituted [60]fulleroindole derivatives. This method features simple operation, low cost, transition-metal-circumvented, and good functional group tolerance in indole.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Zhan Liu, Zheng-Chun Yin, Wen-Qiang Lu, Chuang Niu, Muqing Chen, Shangfeng Yang, Guan-Wu Wang
Summary: A novel and efficient Cu(I)-catalyzed radical heteroannulation reaction of [60]fullerene with alpha-bromo acetamides has been developed for the direct synthesis of diverse C-60-fused lactams. The C-60-fused lactams can further undergo electrochemical functionalization to prepare various adducts of C-60, and a representative fullerene product has been utilized as an overcoating layer in n-type perovskite solar cells.
Article
Chemistry, Organic
Di Chao, Tong-Xin Liu, Pengling Zhang, Shilu Xia, Guisheng Zhang
Summary: An unexpected copper-mediated radical-induced ring-opening relay cascade carboannulation reaction of [60]fullerene with cyclobutanone oxime esters is presented for the preparation of various Cl-/Br-incorporated [60]fullerene-fused cyclopentanes. The unique relay cascade transformation uses inexpensive copper salts as promoters and halogen sources and features simple redox-neutral conditions and a broad substrate scope, providing a practical access to a class of novel five-membered carbocycle-fused fullerenes.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Yi-Tan Su, Zheng-Chun Yin, Guan-Wu Wang
Summary: In this study, a palladium-catalyzed three-component alkoxyarylation reaction was conducted to synthesize a series of 1,4-(alkoxy)(aryl)[60]fullerene derivatives. Plausible reaction pathways for the formation of 1,4-(alkoxy)(aryl)[60]fullerenes were proposed. The electrochemical properties of the synthesized adducts were also investigated.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Chuang Niu, Zhiwei Xu, Xinmin Huang, Wei-Feng Wang, Zheng-Chun Yin, Guan-Wu Wang
Summary: The efficient electrosynthesis of decorated basket molecules, specifically [60]fullerene-fused 12-membered macrolactones, has been achieved for the first time. This was done through the electrochemical reduction of [60]fullerene-fused 6-membered lactones followed by ring expansion with 1,2-bis(1-bromoalkyl)benzenes. The isomeric distributions of the obtained macrolactones were elucidated through theoretical calculations, and the product structures were established through single-crystal X-ray analyses.
Article
Chemistry, Multidisciplinary
Zhan Liu, Zheng-Chun Yin, Wen-Qiang Lu, Dian-Bing Zhou, Guan-Wu Wang
Summary: In this study, an unexpected Diels-Alder reaction of [60]fullerene (C-60) with ferrocenes bearing electron-withdrawing groups as cyclopentadiene surrogates was developed to selectively afford single isomers of [2 + 4] cycloadducts of C-60. Mechanistic studies showed the in situ generation of cyclopentadienes from electron-deficient ferrocenes in the presence of an oxidant and an acid, followed by [2 + 4] cycloadditions with dienophiles. A Michael addition reaction using a Grignard reagent was utilized to transform the Diels-Alder adducts of C-60 into more stable fullerene derivatives.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Organic
Tong-Xin Liu, Xin Wang, Pengling Zhang, Panting Yang, Xiaojun Li, Guisheng Zhang
Summary: Here, a concise and robust approach for the efficient assembly of [60]fullerene-fused tricyclic scaffolds has been developed through a palladium-catalyzed cascade [2 + 2 + 2] annulation process. Diverse tricyclic scaffolds incorporating various ring sizes and types can be conveniently constructed in a single-step transformation.
Article
Chemistry, Multidisciplinary
Edwin J. Gonzalez Lopez, Ariel M. Sarotti, Sol R. Martinez, Lorena P. Macor, Javier E. Durantini, Melisa Renfige, Miguel A. Gervaldo, Luis A. Otero, Andres M. Durantini, Edgardo N. Durantini, Daniel A. Heredia
Summary: The novel BOPHY-fullerene C-60 dyad (BP-C-60) serves as a heavy-atom-free photosensitizer with potential applications in medical fields, demonstrating efficient ROS production and acting as an effective photodynamic agent.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Hua Zhang, Yintang Zhou, Ming Xu, Anran Chen, Zitao Ni, Ouardia Akdim, Thomas Wagberg, Xiaoyang Huang, Guangzhi Hu
Summary: This study presents a hierarchical transition metal hydroxide/sulfide (NiFe(OH)x-Ni3S2/NF) electrode with dual heterointerface coexistence, achieved through a cation exchange-induced surface reconfiguration strategy. The electrode exhibits superior electrocatalytic activities, with low over-potentials of 55 mV for hydrogen evolution and 182 mV for oxygen evolution at 10 mA cm-2. The assembled two-electrode system achieves industrially relevant current densities with excellent durability, comparable to commercial electrolysis.
Article
Engineering, Environmental
Fang Tan, Yingtang Zhou, Hua Zhang, Pengliang Sun, Hongyi Li, Xijun Liu, Thomas Wagberg, Guangzhi Hu
Summary: In this study, MoO2/Mo2N3 heterostructure nanoclusters co-doped with nitrogen, phosphorus, and erbium were prepared for the first time. The introduction of nitrogen and phosphorus atoms improved the catalytic activity for the hydrogen evolution reaction through rearranged electronic structure. The synthesis scheme proposed in this study provides a new method for the rational synthesis of homologous core-shell polymetallic nanostructures with broad application prospects.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ziyao Li, Mengshan Chen, Lei Zhang, Rui Xing, Jinsong Hu, Xinhua Huang, Chunhui Zhou, Yingtang Zhou, Thomas Wagberg, Guangzhi Hu
Summary: This study presents an atomic-level orbital coupling strategy to effectively regulate the electronic structures of ultra-small tri-metal Fe-Co-Ni nanoalloy particles. The nanoalloy hybrid material exhibited notable bi-functional catalytic performances toward the oxygen reduction reaction and oxygen evolution reaction, surpassing precious-metal-based and previously reported catalysts. In addition, the as-assembled Zn-air device displayed superior specific capacity, maximal power density, and impressive durability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Xue Zhao, Jianbing Chen, Zenghui Bi, Songqing Chen, Ligang Feng, Xiaohai Zhou, Haibo Zhang, Yingtang Zhou, Thomas Wagberg, Guangzhi Hu
Summary: By combining morphological control engineering and diatomic coupling strategies, heteronuclear Fe-Co bimetals can be efficiently intercalated into nitrogen-doped carbon materials, forming a star-like structure, which can simultaneously accelerate the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The FeCoNC/SL catalyst driven ORR exhibits higher half-wave potential and kinetic current density than the commercial Pt/C catalyst. The OER overpotential is as low as 316 mV (eta(10)), and the mass activity is at least 3.2 and 9.4 times that of mononuclear CoNC/SL and FeNC/SL, respectively. The Zn-air battery with FeCoNC/SL as the air cathode shows a high power density of 224.8 mW cm(-2) and a specific capacity of 803 mAh g(-1).
Article
Chemistry, Physical
Zenghui Bi, Hua Zhang, Xue Zhao, Yuwen Wang, Fang Tan, Songqing Chen, Ligang Feng, Yingtang Zhou, Xin Ma, Zhi Su, Xinzhong Wang, Thomas Wagberg, Guangzhi Hu
Summary: In this study, a nitrogen-doped carbon material with a micro-meso-macroporous structure doped with La was prepared and its La-O/N-C active sites were confirmed by experimental results. The material exhibited low half-wave potential and overpotential for both ORR and OER reactions. A zinc-air battery with this material as the air cathode showed high power density and stable charge-discharge performance. Density functional theory calculations indicated that LaO2N4 sites had the lowest activation free energy and the most easily desorbed oxygen capacity. This study provides important insights for the design of efficient and durable alternatives to precious-metal-based catalysts.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Luca Deiana, Abdolrahim A. Rafi, Cheuk-Wai Tai, Jan-E. Backvall, Armando Cordova
Summary: We disclose a novel and sustainable tandem-catalysis system for asymmetric synthesis, which is fabricated via bio-inspired self-assembly of artificial arthropod exoskeletons or artificial fungi cell walls containing enzyme and metal nanoparticles. The heterogeneous integrated enzyme/metal nanoparticle system co-catalyzes the dynamic kinetic resolution of primary amines, resulting in high yields and excellent enantiomeric excess of the corresponding amides. The use of natural-based and biocompatible structural components makes the system fully biodegradable and renewable, fulfilling important green chemistry requirements.
Article
Chemistry, Multidisciplinary
ZeynabAlsadat Khatami Shal, Cheuk-Wai Tai, Michael Goepel, Roger Glaeser, Mozaffar Shakeri
Summary: In-situ growth of supported embryonic TS-1 zeolite (<10nm) on a silica support was achieved by steam-assisted crystallization(SAC). The use of low amounts of TPABr and steam at a moderate temperature of 130 degrees C was the key factor to control partial transformation of silica into supported embryonic TS-1. Supported embryonic TS-1 exhibits higher catalytic activity, resistance to poisoning, and selectivity compared to reference crystalline TS-1.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Analytical
Jie Zhou, Zongshan Zhao, Xue Zhao, Sam Toan, Lei Wang, Thomas Wagberg, Guangzhi Hu
Summary: A new strategy for preparing Cu nanoparticles anchored in nitrogen-doped carbon nanosheets (Cu@CN) has been developed and applied to detect PQ. The nanocomposite material was characterized using TEM, XRD, XPS, and other techniques, revealing the uniform distribution of Cu nanoparticles on carbon materials. The Cu@CN-based PQ sensor demonstrated excellent electrochemical activity and detection performance. Under optimized conditions, the Cu@CN/GCE exhibited stability, sensitivity, and selectivity for PQ detection, with a detection range of 0.50 nM to 12.00 mu M and a limit of detection of 0.43 nM. The Cu@CN sensor showed high sensitivity and selectivity in environmental water and fruit samples, making it suitable for rapid trace-level detection of PQ in environmental samples.
Article
Chemistry, Physical
Yongfeng Liu, Shi Tang, Zhaoju Gao, Xiuwen Shao, Xiaolin Zhu, Joan Rafols Ribe, Thomas Wagberg, Ludvig Edman, Jia Wang
Summary: Perovskite quantum dots (PeQDs) with capping ligands have impressive optoelectronic properties and enable cost-efficient solution processing. We synthesized and characterized three different PeQDs with the same core but different ligand compositions and densities. PeQD-1 with the highest ligand density showed the highest dispersibility, photoluminescence quantum yield, and core-to-core spacing. Based on these findings, we developed a light-emitting electrochemical cell using purely solution-processed PeQDs without additional electrolytes.
Review
Chemistry, Multidisciplinary
Dimitrios K. Perivoliotis, Joakim Ekspong, Xue Zhao, Guangzhi Hu, Thomas Wagberg, Eduardo Gracia-Espino
Summary: To meet the demand for clean energy production, the development of advanced electrocatalysts for water splitting has gained increasing attention. Non-noble metal catalysts based on transition metals and light elements have shown improved performance. By introducing defects, the catalytic performance of these materials can be further enhanced. This review critically summarizes the latest progress on the role of defects in catalytic electrolysis applications, covering a broad class of nanomaterials.
Article
Materials Science, Multidisciplinary
Vahid Saadattalab, Jiquan Wu, Cheuk-Wai Tai, Zoltan Bacsik, Niklas Hedin
Summary: The study investigates the use of activated carbon (AC) for the removal of volatile organic compounds (VOCs) from gas mixtures. The inclusion of inorganic phosphates on ACs enhances the low gas pressure uptake of acetone and isopropanol. The results suggest that ACs containing iron phosphate could be effective for the adsorption-driven removal of VOCs.
Article
Chemistry, Multidisciplinary
Shaowen Li, Zhigang Chai, Zhaohui Wang, Cheuk-Wai Tai, Jiefang Zhu, Kristina Edstroem, Yue Ma
Summary: This study comprehensively investigates the factors influencing lithium solubility in lithium-zinc alloy and analyzes the spatial distribution of intermediate alloy/lithium metallic species under different conditions. The driving force of lithium diffusion into the solid solution and the correlation between interfacial charge transfer thermodynamics and rate-limiting kinetics are explored. The study also explores lithiophilic alloy sites that promote homogeneous metal plating.
ADVANCED MATERIALS
(2023)
Correction
Green & Sustainable Science & Technology
Yingnan He, Jianbing Chen, Jiapei Lv, Yimin Huang, Shuxing Zhou, Wenyan Li, Yongtao Li, Fengqin Chang, Hucai Zhang, Thomas Wagberg, Guangzhi Hu
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Zhicheng Nie, Lei Zhang, Ziang Du, Jinsong Hu, Xinhua Huang, Chunhui Zhou, Thomas Wagberg, Guangzhi Hu
Summary: The membrane-free two-step water electrolysis, achieved through the anchoring of Co-doped Ni(OH)2 nanosheets onto a nickel foam substrate, provides a low-cost and large-scale supply of hydrogen energy. By using the Co-doping Ni(OH)2@NF electrodes as a charge mediator, the electrochemical hydrogen evolution reaction and oxygen evolution reaction are decoupled, enabling the production of H2 and O2 without a membrane. This device demonstrates promising efficiency for the conversion of renewables to hydrogen. Rating: 8 out of 10.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ying Ye, Lei Zhang, Qiliang Zhu, Ziang Du, Thomas Wagberg, Guangzhi Hu
Summary: In this study, a novel Mott-Schottky catalytic site was successfully incorporated into an N-doping carbon nanobox, with consideration of the effects of intrinsic electric field and hollow/porous support carriers. The resulting heterogeneous catalyst exhibited promising performance for both oxygen reduction reaction and oxygen evolution reaction, leading to significant improvements in the performance of Zn-air batteries. The development of robust bifunctional oxygen catalysts through modulation of surface charge distribution and facilitation of mass transport offers a new avenue for future research.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)