Article
Chemistry, Physical
Yan Wang, Lorenzo Mino, Francesco Pellegrino, Narcis Homs, Pilar Ramirez de la Piscina
Summary: Photoinduced hydrogen production is a promising green strategy for converting solar energy into chemical energy. This study successfully developed noble metal-free photocatalysts by combining different shape-controlled TiO2 nanoparticles and MoxC co-catalyst. The functional properties and efficiency of the composite materials were carefully assessed, and the engineered MoxC/TiO2 interfaces were found to be particularly active in the photocatalytic hydrogen production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Qing Zhang, Yanlan Wang, Xiaotao Jin, Xiang Liu
Summary: In this study, N-doped carbon nanosphere-stabilized Pd nanoparticles were synthesized as high-efficiency nano-catalysts for selective and controlled H-2 generation upon additive-free HCOOH dehydrogenation. The enrichment of electron cloud density of Pd atoms by graphitic N/C in NCS-800 was favorable for the cleavage of C-H bonds. Furthermore, the selective H-2 evolution from additive-free HCOOH dehydrogenation over Pd/NCS-800 was successfully controlled by adjusting the pH.
Article
Chemistry, Multidisciplinary
Qing Zhang, Yanlan Wang, Xiaotao Jin, Xiang Liu
Summary: In this study, N-doped carbon nanospheres with abundant graphitic C/N were designed to enhance the catalytic activity of Pd atom in additive-free HCOOH dehydrogenation. The selective H-2 evolution from HCOOH dehydrogenation was successfully controlled by adjusting the pH.
Article
Chemistry, Physical
Shaoda Huang, Shuanglong Lu, Yiming Hu, Yongyong Cao, Yang Li, Fang Duan, Han Zhu, Yinghua Jin, Mingliang Du, Wei Zhang
Summary: Tuning the electronic structure of the active centers in covalent organic frameworks (COFs) is crucial for balancing the adsorption ability and reactivity of oxygen in the 2e(-) oxygen reduction reaction (ORR) for electrocatalytic synthesis of hydrogen peroxide (H2O2). By introducing different by-design building blocks, the adsorption ability of oxygen molecule (O-2) can be finely tuned, and the binding strength of O-2 is positively correlated with the electron-donating ability of the active center. The newly designed TP-TD-COF exhibits higher 2e(-) ORR activity and selectivity due to its stronger electron-donating ability and higher adsorption strength of O-2 on the electron-rich active center. This work reveals the fundamental structure-activity relationship in H2O2 synthesis and provides a strategy for designing metal-free COF catalysts through rational modulation of their electronic properties at the molecular level.
Article
Chemistry, Physical
Cafer Saka
Summary: This study presents a new alternative strategy for producing specific metal-free carbon catalysts doped with heteroatoms, demonstrating the potential for environmentally friendly conversion to efficiently produce hydrogen. Through thorough investigation of the preparation and performance of oxygen and nitrogen-doped metal-free carbon catalysts, this research provides insight into catalytic design for efficient hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Wei Li, Fei Wang, Xiao-yun Liu, Yan-yan Dang, Jia-yuan Li, Teng-hao Ma, Chuan-yi Wang
Summary: By introducing N heteroatoms into the lattice of hexagonal CdS nanoparticles, N-doped CdS nanocatalysts were prepared. The synergetic promotion of heteroatom-semiconductor coordination (HSC) interaction effectively improved the utilization of photoexcited carriers, resulting in high apparent quantum yield. Under simulated sunlight irradiation, the nanocatalyst exhibited high hydrogen evolution rate with excellent photostability.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Multidisciplinary Sciences
Siyu Sun, Liangwei Ma, Jie Wang, Xiang Ma, He Tian
Summary: A set of metal-free room-temperature phosphorescence (RTP) systems were developed using brominated phenolsulfonephthaleine derivatives, which exhibited red light excitation and the highest phosphorescence quantum yield reported so far. The RTP emission could be controlled by adding acid and alkali alternately, and a logic operation with half-subtractor function and dual-channel response was constructed based on these properties.
NATIONAL SCIENCE REVIEW
(2022)
Article
Chemistry, Physical
Yafei Xu, Jun Wang, Rui Xu, Wuke Li
Summary: The smart catalyst shows temperature-controlled catalytic activity in releasing hydrogen from ammonia borane, with high catalytic activity at room temperature and significantly suppressed hydrogen generation at high temperature. The switchable red luminescence of the composite hydrogel in solution at high/low temperatures offers the possibility to track the catalyst and understand the catalytic mechanism. This thermo-controllable system of hydrogen generation has great potential applications in the safe hydrolysis from chemical hydride fuel.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Qi Zhao, Hongyuan Xiao, Geng Huangfu, Zhipeng Zheng, Jiasheng Wang, Feifei Wang, Yiping Guo
Summary: Inducing changes in polarization of a ferroelectric material by applied stress can achieve efficient dye degradation and hydrogen generation at low temperatures. BaTi0.89Sn0.11O3 (BTS) nanoparticles exhibit superior piezoelectric response near Curie temperature, serving as an excellent piezocatalyst. Utilizing low T-c ferroelectrics through harvesting vibration or thermal energy enables highly efficient water remediation.
Review
Chemistry, Multidisciplinary
Aakash D. Nidhankar, Goudappagouda, Vivek C. Wakchaure, Sukumaran Santhosh Babu
Summary: The innovative transformation of organic luminescent materials has led to the exciting research field of ultralong room-temperature phosphorescence, with credit to rational design and continuous effort. Various strategies in the past decade have successfully extended the lifetime of organic systems, indicating a promising future for these materials.
Article
Chemistry, Inorganic & Nuclear
Gouri Tudu, Khushboo S. Paliwal, Sourav Ghosh, Tanmoy Biswas, Heramba V. S. R. M. Koppisetti, Antarip Mitra, Venkataramanan Mahalingam
Summary: The study demonstrated the efficient conversion of epoxides to cyclic carbonates using PABA@α-Fe2O3 nanocatalyst, attributed to synergistic effect between the material and amine group. The recyclability and stability of the catalyst make it a sustainable approach for CO2 utilization.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Shangwei Feng, Qiuqin Huang, Shuming Yang, Zhenghuan Lin, Qidan Ling
Summary: This study introduces two metal-free 2D layered ammonium halides that promote organic room temperature phosphorescence through energy transfer, achieving full-color and even white ultra-long RTP. These doped halides can be used to create information ink and complex anti-counterfeiting and chemical sensors.
Article
Nanoscience & Nanotechnology
Meng Zhang, Xujian Chen, Xinyan Jiang, Jin Wang, Liyun Xu, Junhao Qiu, Wenrong Lu, Deli Chen, Zhengquan Li
Summary: This study presents a facile method to synthesize uniform Fe3S4 nanorods with enhanced HER activity through Ni doping. Sensitized by a commercial organic dye, the 1%Ni-doped Fe3S4 nanorods exhibit significantly higher H-2 production rate and apparent quantum yield compared to pristine Fe3S4 and even 1% Pt-deposited Fe3S4. The working mechanism of this dye-sensitized system and the effect of Ni-doping concentration have been explored.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Kunlin Li, Xueyan Chen, Jianghao Zhang, Min Chen, Xiaoxiao Qin, Fei Wang, Kai Li, Jinhou Fang, Changbin Zhang
Summary: In this study, flower-like MgO/Carbon material was synthesized by one-step carbonization of magnesium gluconate and used for H2S oxidation at room temperature. The MgO/Carbon material demonstrated abundant basic sites for H2S adsorption and dissociation due to its high content of MgO and super-hydrophilic surface. Additionally, carbon defects and a well-developed pore structure provided active sites for desulfurization and large space for sulfur storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jaejung Song, Je Min Yu, Jang Hyuk Ahn, Hyeonjin Cho, Jiyeon Oh, Yoon Seo Kim, Jieun Kim, Myohwa Ko, Seong-hun Lee, Tae Joo Shin, Hu Young Jeong, Changduk Yang, Jun Hee Lee, Ji-Wook Jang, Seungho Cho
Summary: The importance of hydrogen peroxide continues to rise globally. The oxygen reduction reaction (ORR) towards the 2e(-) pathway to form H2O2 is crucial for high productivity. However, existing catalysts made of carbon-containing materials have low stability, hindering their commercial applicability. In this study, layered double hydroxides (LDHs) are used as inorganic matrices for the first time. The developed LDH catalyst exhibits near-100% 2e(-) ORR selectivity and stably produces H2O2 with a high concentration.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Debanjan Das, Abhinaba Das, Meera Reghunath, Karuna Kar Nanda
Article
Nanoscience & Nanotechnology
Saswati Santra, Nirmalya Sankar Das, Subrata Senapati, Dipayan Sen, Kalyan Kumar Chattopadhyay, Karuna Kar Nanda
Article
Nanoscience & Nanotechnology
D. Banerjee, P. Bhowmick, D. Pahari, S. Santra, S. Sarkar, B. Das, K. K. Chattopadhyay
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2017)
Article
Nanoscience & Nanotechnology
Debanjan Das, Saswati Santra, Karuna Kar Nanda
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Materials Science, Multidisciplinary
S. Santra, A. Das, N. S. Das, K. K. Chattopadhyay
BULLETIN OF MATERIALS SCIENCE
(2018)
Article
Chemistry, Physical
Debasish Sarkar, Debanjan Das, Shyamashis Das, Ankit Kumar, Satish Patil, Karuna Kar Nanda, D. D. Sarma, Ashok Shukla
ACS ENERGY LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Debanjan Das, Subrata Senapati, Karuna Kar Nanda
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Nanoscience & Nanotechnology
Marjeta Macek Krzmanc, Nina Daneu, Alja Contala, Saswati Santra, Khaja Mohaideen Kamal, Blaz Likozar, Matjaz Spreitzer
Summary: The hydrothermal epitaxial growth of SrTiO3 on Bi4Ti3O12 platelets enables the formation of novel nanoheterostructural SrTiO3/Bi4Ti3O12 platelets. During the topochemical conversion reaction, the Bi4Ti3O12 platelets are gradually replaced by SrTiO3, resulting in a stable and efficient photocatalyst without noble-metal doping or cocatalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Green & Sustainable Science & Technology
Gokul Raj, Debanjan Das, Bidushi Sarkar, Shauvik Biswas, Karuna Kar Nanda
Summary: Transition metal carbides have attracted considerable attention as a non-precious electrocatalyst for efficient hydrogen evolution reaction. In this study, a bifunctional electrocatalyst was developed via electronically modulated bimetallic carbides, showing exemplary activity in both acidic and basic media for HER and OER.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Laura I. Wagner, Elise Sirotti, Oliver Brune, Gabriel Groetzner, Johanna Eichhorn, Saswati Santra, Frans Munnik, Luca Olivi, Simone Pollastri, Verena Streibel, Ian D. Sharp
Summary: The performance of Ta3N5 as a photoanode for solar water splitting can be greatly enhanced by controlled Ti doping, resulting in reduced deep-level defects, increased photocurrent density, and shifted photocurrent onset potential. Ti4+ ions substitute Ta5+ lattice sites, reducing the concentrations of harmful nitrogen vacancies and Ta3+ states, thereby suppressing trapping and recombination. Ti doping also allows for tuning of electrical conductivity without increasing the oxygen donor content.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Saswati Santra, Debanjan Das, Nirmalya Sankar Das, Karuna Kar Nanda
ACS APPLIED ENERGY MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Alexander M. Prophet, Kritanjan Polley, Gary J. Van Berkel, David T. Limmer, Kevin R. Wilson
Summary: The oxidation kinetics of iodide by ozone at the air-water interface is studied in single microdroplets. Molecular simulations and kinetic modeling are used to understand the underlying multiphase mechanism.
Article
Chemistry, Multidisciplinary
Rong Zhang, Jiajing Lan, Fei Wang, Shumei Chen, Jian Zhang
Summary: By utilizing 1,1'-ferrocene dicarboxylic acid as a chelating and surface protection ligand, we have synthesized multi-nuclear indium oxide clusters with varying nuclear sizes, including heptanuclear and thirteen-nuclear clusters. These clusters possess labile coordination sites, allowing for structural modification and self-assembly, resulting in the formation of various cluster structures.
Article
Chemistry, Multidisciplinary
Hui Wang, Hui Liu, Mingsen Wang, Jiaheng Hou, Yongjun Li, Yuancheng Wang, Yingjie Zhao
Summary: Two supramolecular complexes were prepared using CBs and M1, and their single-crystal structures were analyzed by SCXRD. The unexpected 1:2 self-assembly structure between M1 and CB[8] was discovered for the first time. These complexes exhibit unique photophysical properties and provide valuable information about the structure and photophysical properties of supramolecular complexes.
Article
Chemistry, Multidisciplinary
Chang-Hee Lee, Sookil Park, Sanggil Kim, Ji Young Hyun, Hyun Soo Lee, Injae Shin
Summary: The epidermal growth factor receptor (EGFR) is a cell-surface glycoprotein involved in cell proliferation and tumor development. This study used a fluorescently labeled EGFR to investigate its time-dependent endocytosis in live cells and found that appended glycans affect EGFR internalization. Additionally, the study detected sialic acid residues attached to EGFR on the live cell surface using FRET-based imaging. This research provides valuable insights into the cellular functions of EGFR.
Article
Chemistry, Multidisciplinary
Subhankar Sahu, Lokesh Kumar, Sumita Das, Dipti Gupta, Ruchi Anand
Summary: This study proposes a strategy that combines organic electronics with biosensor scaffolds to create a compact device for monitoring environmental aromatic pollution. By coupling biosensing protein MopR with an organic electrochemical transistor (OECT), a sensor module capable of efficient detection of phenol was designed. Exclusive phenol detection with minimal loss of sensitivity could be achieved in complex pollutant mixtures and real environmental samples.
Review
Chemistry, Multidisciplinary
Changseok Lee, Hyung-Joon Kang, Sungwoo Hong
Summary: The formation of C-N bonds through hydroamination reactions catalyzed by nickel hydrides has been a topic of recent interest. This approach offers a way to efficiently transform a variety of alkene and alkyne substrates into compounds enriched with C-N bonds. The review provides a concise overview of the underlying reaction mechanisms and aims to stimulate further progress in NiH-catalytic techniques and catalyst design.
Article
Chemistry, Multidisciplinary
Yueci Wu, Lu-Lu Sun, Hai-Hao Han, Xiao-Peng He, Weiguo Cao, Tony D. James
Summary: Drug-induced liver injury (DILI) is a common cause of acute liver failure in the USA and Europe, but most cases can be recovered or prevented by discontinuing the offending drug. Recent research has found that peroxynitrite (ONOO-) can be used as a potential indicator for early diagnosis of DILI, and there is an urgent need to establish a method to detect and track peroxynitrite in DILI cases. In this study, a FRET-based nano fluorescent probe CD-N-I was developed, which showed high selectivity and sensitivity in detecting peroxynitrite. The probe successfully detected exogenous peroxynitrite in live cells and endogenous peroxynitrite in APAP-induced liver injury of HepG2 cells.
Article
Chemistry, Multidisciplinary
Dmitry L. Lipilin, Mikhail O. Zubkov, Mikhail D. Kosobokov, Alexander D. Dilman
Summary: This article describes a direct photocatalytic method for the thiolation of unprotected acids, which was previously challenging. By using a thionocarbonate reagent with an N-O bond, the efficient conversion of carboxylic acids to thiols is achieved.
Article
Chemistry, Multidisciplinary
Jason Malenfant, Lucille Kuster, Yohann Gagne, Kouassi Signo, Maxime Denis, Sylvain Canesi, Mathieu Frenette
Summary: Raman microscopy can reveal compound-specific vibrational fingerprints without sample preparation. The combination of efficient theoretical calculations and a user-friendly software can accurately predict peak positions and provide match scores to assist with structure determination.
Article
Chemistry, Multidisciplinary
Jayoh A. Hernandez, Paul S. Micus, Sean Alec Lois Sunga, Luca Mazzei, Stefano Ciurli, Gabriele Meloni
Summary: Essential trace metals play crucial roles in the survival and virulence of bacterial pathogens. Helicobacter pylori requires nickel for colonization and persistence in the stomach, and NixA is an essential nickel transporter in this process. This study characterizes the selectivity and electrogenic nature of NixA-mediated nickel transport.
Article
Chemistry, Multidisciplinary
Tarali Devi, Kuheli Dutta, Jennifer Deutscher, Stefan Mebs, Uwe Kuhlmann, Michael Haumann, Beatrice Cula, Holger Dau, Peter Hildebrandt, Kallol Ray
Summary: This study emphasizes the importance of subtle electronic changes and secondary interactions in the stability of biologically relevant metal-dioxygen intermediates. It also shows that the role of the chloride ligand in stabilizing the Fe-III-(OOBu)-Bu-t moiety can extend to other anions, including the thiolate ligand.
Article
Chemistry, Multidisciplinary
Jacqueline R. Santhouse, Jeremy M. G. Leung, Lillian T. Chong, W. Seth Horne
Summary: By studying the folding kinetics and mechanism of the BdpA sequence, researchers found that altering the backbone connectivity can affect protein folding. This suggests that protein mimetic chains have a significant degree of plasticity in transitioning between unfolded and folded states.
Article
Chemistry, Multidisciplinary
Divanshu Gupta, Ralf Einholz, Holger F. Bettinger
Summary: This study presents the first direct spectroscopic evidence of a cyclic seven-membered iminoborane. Compared to linear amino-iminoboranes, this cyclic iminoborane exhibits weakened bond strength and lower Lewis acidity value. The study suggests that the reduced ring strain of cyclic iminoborane prevents nitrogen fixation but allows facile (2 + 2) cycloaddition reaction with C2H4.
Article
Chemistry, Multidisciplinary
Renny Mathew, Aniruddha Mazumder, Praveen Kumar, Julie Matula, Sharmarke Mohamed, Petr Brazda, Mahesh Hariharan, Brijith Thomas
Summary: This study reveals the packing arrangement of partially disordered nitro-perylenediimide (NO2-PDI) using a synergistic approach that combines 3D ED, ssNMR, and DFT techniques. By overcoming these challenges, this methodology opens up new avenues for material characterization, driving exciting advancements in the field.
