Article
Chemistry, Inorganic & Nuclear
Xianrui Gao, Hongjun Fan
Summary: This study investigates the modulating effect of the non-redox-inactive component Ca2+ on the redox potential of the photosynthetic oxygen-evolving center. The results show that the non-redox-inactive metal has a weak modulating effect on the potential, while the net charge of the complex has a significant impact. The potential can be regulated through protonation, deprotonation, or ligand modification.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Edouard Boivin, Robert A. House, John-Joseph Marie, Peter G. Bruce
Summary: Layered oxides with Fe for Na-ion batteries have gained attention for their low cost. However, full oxidation of Fe3+ to Fe4+ often results in voltage and capacity fade. Doping with Mg can enhance the reversibility of Fe3+/Fe4+ redox couple and suppress Fe migration.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Caiju Zhang, Shuting Lu, Kai Deng, Wang Qian, Yue Liu, Yi Li, Shiqi Jin, Ruiyang Suo, Haibo Xu, Bo Wu
Summary: This study proposes an X-ray-activated iron ion supply platform for tumor therapy. The platform utilizes a CaWO4 nanoscintillator to emit UV light under X-ray excitation, which catalyzes ferrous to generate highly toxic hydroxyl radicals through the Fenton reaction. Immunotherapy is also triggered during this process. The platform shows superior tumor therapeutic efficacy and can be used as an MR/CT dual-mode imaging contrast agent for tumor diagnosis and treatment monitoring.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Environmental Sciences
Yawen Yuan, Shutong Chen, Bin Yao, Anwei Chen, Liang Pei, Si Luo, Yaoyu Zhou
Summary: A Fe3+/persulfate system enhanced with a natural ligand cysteine was employed for the degradation of quinclorac, which widened the effective pH range and increased the removal rate for quinclorac. The mechanism was revealed that the Fe3+/Cys/PS system can enhance the ability of degrading quinclorac by accelerating the Fe3+/Fe2+ redox cycle and generating more reactive oxygen species. The impact factors were also optimized. This study provides a promising strategy for organic contaminated water remediation with high catalytic activity and wide pH tolerance.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jae-Sung Jang, Min-Cheol Kim, Ji-Hwan Kim, Deok-Hye Park, Seong-Nam Lee, Yu-Yeon Park, Min-Ha Kim, Jeong-Hyeon Byeon, Jung Inn Sohn, Kyung-Won Park
Summary: Lithium-oxygen batteries (LOBs) are high-capacity and high-energy-density electrochemical power sources. The low electrical conductivity and insolubility of Li2O2 produced during charging result in low energy efficiency in LOBs. This study fabricates a redox polymeric catalyst (RPC-FePc) on an air electrode using iron(II) phthalocyanine (FePc) as the redox mediator and polyvinylidene fluoride as the binder. The RPC-FePc exhibits improved electrochemical properties in liquid electrolyte- and gel polymer electrolyte-based LOBs, including increased cycling efficiencies and reduced IR drop.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Energy & Fuels
Xinsha Zhang, Xudong Song, Jiaofei Wang, Weiguang Su, Yonghui Bai, Bing Zhou, Guangsuo Yu
Summary: The study revealed that the iron-based waste catalyst from indirect coal-liquefaction plant has a certain catalytic effect on the gasification of coal char, with the redox cycle of Fe being one of the main reasons behind its catalytic activity. The optimal temperature for catalytic gasification was found to be 1000 degrees C, and the changes in small molecule active groups on the surface of the gasified char were observed during the process. Additionally, the formation of metallic Fe and its subsequent oxidation to FeO and Fe3O4 by the gasification agent CO2 played a crucial role in the catalytic gasification reactivity.
Article
Nanoscience & Nanotechnology
Kyoko Fujita, Hiroyuki Asakura, Saburo Hosokawa, Kentaro Teramura, Masaki Kobayashi, Koji Fujita, Tsunehiro Tanaka
Summary: The study revealed that Fe-doped gamma-Al2O3 can store and release oxygen reversibly during catalytic reactions, offering a new approach for developing oxygen storage materials without the need for rare metals.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Applied
Rui Yang, Jing Tian, Yuqian Liu, Lei Zhu, Jixuan Sun, Demei Meng, Zhiwei Wang, Chengtao Wang, Zhongkai Zhou, Lingyun Chen
Summary: Chlorogenic acid can form complexes with Fe(III) and bind with ferritin through hydrogen bonds, promoting iron oxidation and release. This study elucidates interactions among multiple components in foodstuffs using a protein-metal-polyphenol model.
Article
Chemistry, Physical
Yoshimi Kato, Tatsuhiko Yoshino, Shigeki Matsunaga
Summary: C-H functionalization reactions catalyzed by iron, the most abundant transition metallic element in the Earth's crust, are one of the ideal synthetic methods. However, there are a limited number of strategies for iron-catalyzed directed C-H activation reactions when compared to reactions catalyzed by other first-row transition metals. Here, we report the iron/photosensitizer-catalyzed C-H alkenylation of amide derivatives via a a-CAM promoted by the in situ generation of an iron metallacycle. Mechanistic experiments suggest that the C-H bond cleavage would proceed via the a-CAM from a metallacycle generated in situ rather than via the oxidative addition to a low-valent iron species.
Article
Chemistry, Physical
Kohei Tada, Mitsunori Kitta, Shingo Tanaka
Summary: The study confirmed that the O-covered (Ti-sublayer) (111) surface of Li4Ti5O12 is the most exposed surface, and catalytic metals supported on this surface may exhibit catalytic activity. Results suggest that the interface of transition-metal oxides' inactive O-covered surfaces may actually exhibit catalytic activity, bridging the gap between theoretical calculations and experimental observations.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yifan Wang, Mengyun Zhao, Ting Wang, Mengzhu Li, Xilei Lu, Bingchi Li
Summary: By utilizing Fe ions as oxidizing agents and electron carriers, and employing proton exchange electrolysis technique, the degradation of cornstalk and hydrogen production were achieved with a high Faraday efficiency of 94.65%. Various factors such as temperature, electrolytic potential, and electrolytic current density were studied, while SEM, FT-IR, GC-MS, and 2D HSQC NMR were used for preliminary analyses of the degradation products, showing that the Fe3+/Fe2+-cornstalk electrolytic system provides a new pathway for environmental application of cornstalk and hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Mengwei Gu, Sheng Dai, Runfa Qiu, Michael E. Ford, Chenxi Cao, Israel E. Wachs, Minghui Zhu
Summary: The study found that the surface structure and reducibility/basicity of iron oxide catalysts modified with Cu and K are strongly interdependent, with the addition of K altering the reaction pathway and Cu facilitating hydrogen dissociation to enhance both reaction mechanisms.
Article
Chemistry, Inorganic & Nuclear
Yin-Jing Shen, Kun Zhang
Summary: This paper presents the design and synthesis of an N-linked disalicylaldehyde H(2)Q(j1) for sensing heavy metal ions. The ESIPT state of H(2)Q(j1) is rapidly destroyed by Fe(III) and Cu(II), leading to turn-off fluormetric and colorimetric responses. The sensing systems H(2)Q(j1)-Fe(III) and H(2)Q(j1)-Cu(II) exhibit ratiometric behavior with low LOD values.
Review
Chemistry, Multidisciplinary
Xue-Peng Zhang, Anirban Chandra, Yong-Min Lee, Rui Cao, Kallol Ray, Wonwoo Nam
Summary: This article summarizes the information obtained so far in enzymatic and biomimetic systems that fuels the debate regarding the nature of the active oxidants and the mechanistic uncertainties associated with the transition metal-mediated O-O bond formation and cleavage reactions.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Physical
Wenxi Chang, Yuming Gao, Jiahui He, Xue Xia, Chuande Huang, Yue Hu, Weibin Xu, Bo Jiang, Yujia Han, Yanyan Zhu, Xiaodong Wang
Summary: This paper demonstrates the discovery of an asymmetric Fe-O-Al motif in perovskite ferrites that promotes oxygen activity for selective anaerobic oxidation of CH4. Al doping leads to the accumulation of more electrons around Fe-O-Al (-1.20e) than Fe-O-Fe (-1.08e), improving Fe-O bond covalence, enhancing hydrogen adsorption on oxygen, and reducing the activation barrier for C-H bond cleavage (0.87 eV for Fe-O-Al vs. 1.05 eV for Fe-O-Fe). Intimate Al-O interaction prevents over-oxidation and increases the oxygen vacancy formation energy of Fe-O-Al (3.81 eV) compared to Fe-O-Fe (3.43 eV). The synergy between Fe-O-Al and Fe-O-Fe enables enhanced methane-to-syngas performance, providing a foundation for designing catalysts for selective C-H bond activation in chemical looping reactions or catalytic transformations.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Gebremedhin G. Aregay, Jawad Ali, Yusheng Du, Ajmal Shahzad, Zhuqi Chen
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Agricultural Engineering
Huabin Wang, Siqi Wang, Zhulei Chen, Xinquan Zhou, Jia Wang, Zhuqi Chen
BIORESOURCE TECHNOLOGY
(2020)
Article
Engineering, Environmental
Xinquan Zhou, Chunguang Luo, Mengyi Luo, Qiliang Wang, Jia Wang, Zhuwei Liao, Zhulei Chen, Zhuqi Chen
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Environmental
Ali Jawad, Kun Zhan, Haibin Wang, Ajmal Shahzad, Zehua Zeng, Jia Wang, Xinquan Zhou, Habib Ullah, Zhulei Chen, Zhuqi Chen
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Environmental
Jerosha Ifthikar, Zhuqi Chen, Zhulei Chen, Ali Jawad
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Chemistry, Physical
Lotfi Sellaoui, Huabin Wang, Michael Badawi, Adrian Bonilla-Petriciolet, Zhuqi Chen
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Environmental Sciences
Jia Wang, Min Shen, Qing Gong, Xianghui Wang, Jiayi Cai, Songlin Wang, Zhuqi Chen
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Jawad Ali, Lei Wenli, Ajmal Shahzad, Jerosha Ifthikar, Gebremedhin G. Aregay, Irshad Ibran Shahib, Zouhair Elkhlifi, Zhulei Chen, Zhuqi Chen
Article
Engineering, Environmental
Jia Wang, Qing Gong, Jawad Ali, Min Shen, Jiayi Cai, Xinquan Zhou, Zhuwei Liao, Songlin Wang, Zhuqi Chen
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Environmental
Ajmal Shahzad, Jawad Ali, Jerosha Ifthikar, Gebremedhin G. Aregay, Jingyi Zhu, Zhulei Chen, Zhuqi Chen
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Agricultural Engineering
Huabin Wang, Jiayi Cai, Zhuwei Liao, Ali Jawad, Jerosha Ifthikar, Zhulei Chen, Zhuqi Chen
BIORESOURCE TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Mian Guo, Jisheng Zhang, Lina Zhang, Yong-Min Lee, Shunichi Fukuzumi, Wonwoo Nam
Summary: In this study, six manganese(IV)-oxo complexes bearing electron-rich and -deficient porphyrins were synthesized and investigated in various oxidation reactions. The research found a reversed reactivity between the electron-rich and -deficient Mn(IV)-oxo porphyrins in hydrogen atom transfer and oxygen atom transfer reactions at different temperatures.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jisheng Zhang, Yong-Min Lee, Mi Sook Seo, Shunichi Fukuzumi, Wonwoo Nam
Summary: In this study, a stable manganese(III)-aqua complex was used as a model to investigate the acid catalysis in the oxidation of anthracene. It was found that acid can significantly enhance the reactivity of the complex, leading to the formation of anthraquinone as the product. The oxidation of anthracene was concluded to proceed via an acid-promoted electron transfer mechanism.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jisheng Zhang, Yong-Min Lee, Mi Sook Seo, Madhuri Nilajakar, Shunichi Fukuzumi, Wonwoo Nam
Summary: Acids can have contrasting effects on different reactions involving a nickel(III) complex, accelerating electron transfer and oxygen atom transfer reactions while decelerating hydrogen atom transfer reactions. The accelerating effect is attributed to the binding of acid to the ligand, while the decelerating effect is due to the inhibition of proton transfer.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jisheng Zhang, Yong-Min Lee, Mi Sook Seo, Youngsuk Kim, Eunsung Lee, Shunichi Fukuzumi, Wonwoo Nam
Summary: The study investigated the HAT reactions of metal-aqua complexes and metal-hydroxo complexes, revealing the effects of electronic substitution on reaction rates and the asynchronous CPET mechanism of the reaction pathways.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Vaibhav Bedi, Dipendu Mandal, Zahid Hussain, Shi-Ming Chen, Yile Wu, Zheng-Wang Qu, Stefan Grimme, Douglas W. Stephan
Summary: The reaction of (tBuO(2)CN)(2) with 9-BBN leads to the formation of a bicyclic heterocyclic compound, while its reactions with BF3 or [Et3Si][B(C6F5)(4)] result in the isolation of different compounds. Computational studies reveal that the steric and electronic properties of the Lewis acid are important in the formation of one of the compounds.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chisa Itoh, Haruka Yoshino, Taku Kitayama, Wataru Kosaka, Hitoshi Miyasaka
Summary: A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes was developed, utilizing Schiff base condensation reactions. The attached Schiff base groups significantly affected the electronic states of the resulting complexes, as revealed by cyclic voltammetry and DFT calculations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Danrui Ni, Haozhe Wang, Xianghan Xu, Weiwei Xie, Robert J. Cava
Summary: A layered rhombohedral polymorph of indium(iii) triiodide is synthesized at high pressure and temperature. It has an orange color, which is different from ambient pressure InI3, which has a monoclinic molecular structure and a light-yellow color.
DALTON TRANSACTIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Juan Carlos Perez-Sanchez, Raquel P. Herrera, M. Concepcion Gimeno
Summary: Gold(II) complexes have been less utilized in catalysis compared to their gold(I) and gold(III) counterparts. However, gold(II) complexes offer potential in homo-coupling and cross-coupling reactions, as they are more easily accessible through simplified oxidation and reduction processes. Gold(II) exhibits characteristics of both soft acid gold(I) and hard acid gold(III). This review explores the unique reactivity and potential applications of gold(II) species, highlighting their significance in catalytic transformations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Nighat Yousuf, Yanping Ma, Qaiser Mahmood, Wenjuan Zhang, Yizhou Wang, Hassan Saeed, Wen-Hua Sun
Summary: In this study, a series of structurally rigid cyclooctyl-fused iminopyridine iron complexes were synthesized and used with methylaluminoxane for isoprene polymerization. The extent of steric hindrance of the ligand framework was found to significantly affect catalytic performance, with less hindrance leading to better activity and stability.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chenghao Song, Huiwei Du, Menglei Xu, Jie Yang, Xinyu Zhang, Jungan Wang, Yuanfang Zhang, Chengjun Gu, Rui Li, Tao Hong, Jingji Zhang, Jiangying Wang, Yongchun Ye
Summary: This study improves the performance of perovskite solar cells by using a dual-hole transport layer strategy. This strategy enhances the charge transfer efficiency of the transport layer, reduces charge recombination, and improves the quality of the perovskite film layer. Ultimately, the stability of the device is enhanced.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahender Singh, Aakash Yadav, Ranjit Singh, Chullikkattil P. Pradeep
Summary: A new aryl selenonium polyoxometalate hybrid was developed and compared with an aryl sulfonium polyoxometalate hybrid in terms of their photocatalytic properties. It was found that the aryl selenonium hybrid exhibited better catalytic performance, which could be attributed to the larger atomic radii of selenium stabilizing the photogenerated electron-hole pair more efficiently. Additionally, the generation of elemental selenium through cleavage of C-Se bonds during catalysis was observed.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Andre L. de O. Batista, Joao Marcos T. Palheta, Mauricio J. Piotrowski, Celso R. C. Rego, Diego Guedes-Sobrinho, Alexandre C. Dias
Summary: This study presents a simulation protocol that provides a solid foundation for exploring two-dimensional materials. Using the TiBr2 2H monolayer as an example, the study reveals its promising properties for optoelectronic and valleytronic applications, including its stability, spin-orbit coupling effects, and optical helicity selection rule.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Jiang Jiang, Zi-Wei Li, Zhi-Zhuan Zhang, Bin Tan, Zhao-Feng Wu, Xiao-Ying Huang
Summary: In this work, two metal organic frameworks (MOFs) containing {Cu2I2} clusters, Eu-CuI-INA and Sr-K-CuI-INA, were synthesized and characterized. Both materials have a three-dimensional structure with {Cu2I2} clusters coordinated by INA(-) ligands and Eu3+ or Sr2+ ions. The Sr-K-CuI-INA material exhibited sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, showing potential applications in bio and explosive molecule sensing. This work provides a good reference for designing fluorescent MOF probes containing CuI molecules.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiya Lin, Jiasheng Wu, Qianwen Ye, Yulong Chen, Hai Jia, Xiaohui Huang, Shaoming Ying
Summary: Na-ion batteries (NIBs) have attracted great interest as a potential technology for grid-scale energy storage due to the wide distribution, low cost, and environmental friendliness of sodium resources. However, their implementation is hindered by low rate capability and cycling stability caused by the large ionic size of Na+. In this study, a three-dimensional nanoarchitectured coral-like CoSe2@N-doped carbon (CL-CoSe2@NC) was synthesized, and it exhibited improved sodium storage properties with better electrode kinetics and a stable SEI film.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Ya-Qiong Zhang, Yu Zhang, Guoping Zeng, Rong-Zhen Liao, Man Li
Summary: The mechanism and selectivity of CO2 reduction under visible light were investigated using density functional calculations. The results showed that a tetradentate PNNP-type Iridium(III) complex exhibited high activity and selectivity in the reaction.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sanyukta Ghosh, Shubhanth Jain, Soumya Ranjan Mishra, Gerda Rogl, Peter Rogl, Ernst Bauer, B. S. Murty, A. Govindaraj, Ramesh Chandra Mallik
Summary: In this study, reduced graphene oxide (rGO) was uniformly dispersed in the In0.5Co4Sb12 bulk material by ultrasonication, which effectively reduced the lattice thermal conductivity and improved the thermoelectric efficiency.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mika Takeuchi, Yutaka Amao
Summary: This study developed an effective visible-light driven system for fumaric acid production using renewable resources such as biomass derivatives, providing an alternative to the current petroleum-based synthesis methods.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Juan Jian, Meiting Wang, Zhuo Wang, Jingwen Meng, Yuqin Yang, Limin Chang
Summary: Developing low-cost and self-supported bifunctional catalysts is crucial for highly efficient water splitting devices. In this study, nano-NiFe2O4 was directly grown onto iron foil surface and Sn4+ was introduced into the NiFe2O4. The resulting Sn-NiFe2O4/IF showed low overpotentials and high current densities during oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising catalyst for large-scale hydrogen production.
DALTON TRANSACTIONS
(2024)