Article
Chemistry, Physical
Zhichun Yu, Liuyue Cao, Huabo Liu, Da-Wei Wang
Summary: The study shows that the aqueous Zn/LiCoO2 hybrid battery with mildly alkaline ammonia-containing electrolyte exhibits remarkable cycling stability and excellent rate capability, promising exciting prospects for advanced aqueous zinc-based batteries with high voltage and high energy density.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Xiaoling Zeng, Xiaohui Li, Jungu Xu, Xiaoge Wang, Sihao Deng, Lunhua He, Junliang Sun, Xiaojun Kuang, Xianran Xing
Summary: Mixed electronic and oxide ionic conduction was introduced in InGe2O7 through Zn2+ substitution for In3+. The obtained In1-xZnxGe2O7-0.5x exhibited high bulk conductivity at 1000 degrees C and showed potential applications in electrode materials for SOFCs.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Review
Chemistry, Physical
Yuhang Li, Hong Yao, Xiangjie Liu, Xiaotong Yang, Du Yuan
Summary: Electrolyte regulation is crucial for improving the reversibility of metallic Zn anodes in high-performance aqueous zinc ion batteries. This review focuses on the influence of electrolyte additives on the electrolyte-Zn chemistry of representative zinc electrolytes. The effects of electrolyte additives on physicochemical properties and deposition behavior of Zn are discussed, and potential directions for the additive approach are provided.
Article
Chemistry, Multidisciplinary
Xiaohui Zeng, Jianfeng Mao, Junnan Hao, Jiatu Liu, Sailin Liu, Zhijie Wang, Yanyan Wang, Shilin Zhang, Tian Zheng, Jianwen Liu, Pinhua Rao, Zaiping Guo
Summary: This study demonstrates the in situ formation of a dense, stable, and highly Zn2+-conductive SEI layer (hopeite) in aqueous Zn chemistry by introducing Zn(H2PO4)(2) salt, which enables uniform and rapid Zn-ion transport kinetics and restrains side reactions. Under practical testing conditions, the Zn/V2O5 full cell retains 94.4% of its original capacity after 500 cycles, showing great potential for high-performance aqueous battery technology.
ADVANCED MATERIALS
(2021)
Article
Engineering, Environmental
Jing Zhou, Hao Yuan, Jieqiong Li, Wei Wei, Yanmei Li, Jiawei Wang, Liwei Cheng, Da Zhang, Yang Ding, Da Chen, Hua Wang
Summary: The problems faced by Zn metal anode in wide-temperature aqueous Zn metal batteries are solved by introducing a multi-hydroxyl polymer cosolvent, resulting in high cyclic stability. Zn|| Zn symmetric cells and Zn|| PANI@V2O5 full batteries exhibit excellent performance under a wide temperature range.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Sangwoo Kim, Ji-Won Jung, DongHoon Song, Su-Ho Cho, Jiyeon Kim, Jun Kyu Kim, DongHwan Oh, Hainan Sun, EunAe Cho, Il-Doo Kim, WooChul Jung
Summary: The lack of bifunctional features of perovskite oxide for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) limits its use as a cathode catalyst for rechargeable Zn-air batteries (ZABs). In this study, cobalt-based nanoparticle decorated Sr0.95Nb0.1Co0.7Fe0.2O3-delta (S0.95NCF) is presented as a novel air-electrode catalyst, achieving significantly enhanced activity for OER and ORR. The newly designed catalyst also exhibits remarkable charge/discharge durability, making it a promising candidate for ZABs cathode.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Chemistry, Physical
Zhuo Chen, Keliang Wang, Pucheng Pei, Yayu Zuol, Manhui Wei, Hengwei Wang, Pengfei Zhang, Nuo Shang
Summary: This review focuses on the safety and stability issues of ion batteries, discussing the drawbacks of organic liquid electrolytes and presenting effective solutions such as polymer electrolytes, solid-state electrolytes, ionic liquid electrolytes, and aqueous electrolytes. The outlook on future electrolytes is also provided.
Review
Chemistry, Physical
Zhuo Chen, Keliang Wang, Pucheng Pei, Yayu Zuol, Manhui Wei, Hengwei Wang, Pengfei Zhang, Nuo Shang
Summary: This review focuses on the safety and stability issues of ion batteries, highlighting the drawbacks of organic liquid electrolytes and summarizing effective solutions such as polymer electrolytes, solid-state electrolytes, ionic liquid electrolytes, and aqueous electrolytes. Additionally, future prospects for electrolytes are discussed, providing insights for the research and development of next-generation batteries.
Article
Chemistry, Inorganic & Nuclear
Min Zhu, Fengwu Wang, Yufeng Gu, Peiqing La
Summary: A series of oxide ceramics with the general formula of Sr1-xLaxNb2O6-delta were synthesized and studied. The substitution of La3+ for Sr2+ increases the Nb4+ chemical state and introduces oxygen vacancy defects. Due to lattice distortion and heavier La atoms, the thermal conductivity, electrical resistivity, and Seebeck coefficient decrease. Among the samples, Sr0.6La0.4Nb2O6 reaches the highest ZT value of approximately 0.13 at 1073 K.
SOLID STATE SCIENCES
(2022)
Article
Chemistry, Physical
Hyeokjin Kwon, Jaewon Baek, Hee-Tak Kim
Summary: A lean electrolyte design is crucial in enhancing the gravimetric energy density of lithium metal batteries (LMBs) based on liquid electrolytes. However, the capacity fade issue caused by the degradation of the electrolyte and lithium metal electrode poses significant challenges under lean electrolyte conditions. This review discusses the challenges, recent progress, and potential research directions in lean electrolyte LMBs, providing insights and inspiring innovation.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Stefan J. Raaijman, Nakkiran Arulmozhi, Marc T. M. Koper
Summary: This study reveals that copper surfaces exhibit morphological stability under CO2 reduction reaction conditions, with observed changes in voltammetry primarily attributed to electrode fouling rather than redistribution of surface sites.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Thomas C. Robinson, Drew E. Latta, Johna Leddy, Michelle M. Scherer
Summary: Predicting the redox behavior of magnetite in reducing soils and sediments is challenging due to inconsistent measured potentials and the lack of consensus on relevant Fe(III) | Fe(II) equilibria. In this study, we measured open-circuit potentials of stoichiometric magnetite equilibrated under various solution conditions and found Nernstian behavior in certain conditions. Our findings suggest that the maghemite/Fe(II)aq couple accurately predicts the redox behavior of stoichiometric magnetite suspensions in the presence of aqueous Fe(II) between pH values of 6.5 and 8.5. Additionally, a distinct shift in potentials was observed at higher pH values and without added Fe(II), indicating a change in the dominant Fe(III)|Fe(II) couple(s) poising the potential.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Fan Yang, Yuzheng Lu, Junjiao Li, Xiang Song, Lei Yu, Yixiao Cai
Summary: Recent advances in composite materials, especially semiconductor materials incorporating ionic conductor materials, have significantly improved the performance of low-temperature fuel cells. The combination of semiconductor LNCA and ionic Sm-doped ceria composite electrolyte has shown a remarkable power improvement, demonstrating a new fuel cell working principle and simplifying technologies for a new generation of fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Qiang Jin, Xiaoqun Qi, Fengyi Yang, Ruining Jiang, Yong Xie, Long Qie, Yunhui Huang
Summary: The study found that the dissolution of long-chain lithium polysulfides intermediates in lean ether electrolytes significantly reduces the wettability and conductivity of electrolytes, leading to increased internal contact and charge-transfer resistance of cells under lean-ether-electrolyte conditions, which causes the failure of Li-S batteries. By replacing ether electrolytes with sparingly solvating electrolytes, the electrochemical performance of lean-electrolyte Li-S batteries can be significantly improved, guiding the future development of high-energy Li-S batteries.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
S. Rauf, B. Zhu, M. A. K. Y. Shah, Z. Tayyab, S. Attique, N. Ali, N. Mushtaq, M. I. Asghar, P. D. Lund, C. P. Yang
Summary: This study developed a high ionic conductivity solid electrolyte to improve the power output of low-temperature solid oxide fuel cells, by doping Tm and Sr to increase the oxygen vacancy content.
MATERIALS TODAY ENERGY
(2021)
Article
Energy & Fuels
Allan J. M. Araujo, Francisco J. A. Loureiro, Laura I. Holz, Vanessa C. D. Graca, Joao P. F. Grilo, Daniel A. Macedo, Carlos A. Paskocimas, Duncan P. Fagg
Summary: This article analyzes the electrode performance of misfit-layered calcium cobaltite as a cathode and anode for solid oxide fuel cell and solid oxide electrolysis cell, respectively, using electrochemical impedance spectroscopy. The addition of Ce0.8Gd0.2O2-delta as a composite electrode phase significantly improves the electrochemical processes and reduces the polarization resistance. Short-term stability testing demonstrates that the composite material shows stable current density and no observable microstructure delamination at 700°C.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
D. Pukazhselvan, David Alexandre Reis Silva, K. S. Sandhya, Sara Fateixa, Aliaksandr Shaula, Helena Nogueira, Igor Bdikin, Duncan Paul Fagg
Summary: This study demonstrates the transformation of zirconia additive into zirconium hydride and its significant impact on lowering the dehydrogenation temperature of magnesium hydride. The results provide evidence of the chemical transformation of zirconia and support the formation of an active in situ product, zirconium hydride, which enables low temperature dehydrogenation of magnesium hydride. The study also highlights the dispersion of tiny nanoparticles on the surface and the formation of highly active in situ nanocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Cristina Ramirez, Ali Saffar Shamshirgar, Domingo Perez-Coll, Maria Isabel Osendi, Pilar Miranzo, Girish C. Tewari, Maarit Karppinen, Irina Hussainova, Manuel Belmonte
Summary: 3D printing technologies combined with chemical vapor deposition can be used to fabricate new hybrid materials with tunable properties. The thickness and crystallinity of graphene-based coatings can be controlled by altering the parameters of chemical vapor deposition. Transmission electron microscopy confirms the successful growth of nanocrystalline graphene layers on 3D printed α-Al2O3 substrates, resulting in fully-connected and highly conductive pathways. In terms of thermal conductivity, specimens decorated with graphitic coatings exhibit higher thermal conductivity compared to bare ceramic scaffolds.
Article
Materials Science, Ceramics
Angel Trivino-Pelaez, Jadra Mosa, Domingo Perez-Coll, Mario Aparicio, Glenn C. Mather
Summary: Sol-gel synthesis using alkoxides is employed to obtain fluorine-modified BaZr0.8Y0.2O3-delta nanopowders, which show inhibited carbonate formation and good chemical stability at high temperatures due to fluorine doping.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Rafael A. Raimundo, Vinicius D. Silva, Luciena S. Ferreira, Francisco J. A. Loureiro, Duncan P. Fagg, Daniel A. Macedo, Uilame U. Gomes, Rodinei M. Gomes, Marcio M. Soares, Marco A. Morales
Summary: This work investigates the magnetic behavior and electrocatalytic properties of CoFe2/CoFe2O4 composite and CoFe2 alloy obtained through proteic sol-gel synthesis. The samples were characterized using microscopy, XRD, Mossbauer spectroscopy, and magnetometry. The results show that both samples exhibit promising magnetic properties and demonstrate good electrochemical stability for the oxygen evolution reaction (OER). These materials based on transition metals, Co and Fe, have great potential in energy storage and conversion systems due to their high performance and low cost.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Victor Zapata-Ramirez, Glenn C. Mather, Domingo Perez-Coll
Summary: This study reports the effects of Mo and Sb doping on SrFe0.5Co0.5O3-delta material. The Mo and Sb doped phases have higher oxygen content, while the Sb doped material has the greatest oxygen loss at temperatures above 350 degrees C. The Mo doped phase has a higher total oxygen content, resulting in higher conductivity. On the other hand, the Sb doped material has an increasing oxygen-vacancy content with temperature, and it has the most competitive electrode-polarisation resistance.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Fabulo Ribeiro Monteiro, Ana Gabriela Storion, Kethlinn Ramos, Lilian Menezes Jesus, Domingo Perez-Coll, Glenn C. Mather, Adilson Luiz Chinelatto, Eliria Maria de Jesus Agnolon Pallone
Summary: The effect of particle-to-particle contact on flash-sintered materials was investigated using pseudo-in-situ impedance spectroscopy. It was found that preparing powders using multiple milling and calcining steps improved charge-carrier mobility paths, facilitated homogeneous passage of electric current, reduced thermal gradients, and consequently resulted in better microstructural homogeneity and electrical conductivity.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Irene Diaz-Herrezuelo, Martin Koller, Asuncion Quintanilla, Gonzalo Vega, Jose A. Casas, Domingo Perez-Coll, Hanus Seiner, M. Isabel Osendi, Pilar Miranzo, Manuel Belmonte
Summary: The demand for hydrogen as a green energy source has significantly increased in recent years. Cubic zirconia ceramics, especially when manufactured into 3D porous structures, show promise as catalytic supports for hydrogen production. In this study, 3D patterned 8YSZ scaffolds with high porosity (up to 88%) were fabricated using robocasting and employed as catalytic supports for hydrogen production. The use of 3D Pd/8YSZ catalyst resulted in continuous CO-free H2 production with a 32% FA conversion at T = 55 degrees C.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Thayse R. Silva, Rafael A. Raimundo, Vinicius D. Silva, Jakeline Raiane D. Santos, Luciena S. Ferreira, Allan J. M. Araujo, Francisco J. A. Loureiro, Fausthon F. da Silva, Duncan P. Fagg, Daniel A. Macedo
Summary: This research presents a simplified sol-gel method combined with an adapted hydrothermal process to synthesize MnCo2O4 nanoparticles on nickel foam catalyst. The catalyst possesses a large surface area and the absence of binders promotes adhesion of the active material, which boosts the electrocatalytic reactions. The structural, microstructural, and surface properties of the MnCo2O4 electrode are studied through XRD, FESEM, TEM, FTIR, Raman, and XPS analysis. The electrode exhibits excellent electrochemical stability, with an overpotential of 296 mV (at 25 mA cm-2 current density) and a Tafel slope of 82 mV dec � 1, indicating its great potential for future applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Vanessa C. D. Graca, Laura I. V. Holz, Allan J. M. Araujo, Francisco J. A. Loureiro, Duncan P. Fagg
Summary: To address the urgent need for alternative energy transfer methods, Proton Ceramic Membrane Reactors (PCMRs) are being investigated as a clean alternative for energy production and chemical synthesis. This study focuses on using niobium (oxy)nitride with proton ceramic conducting materials as a new composite electrode for PCMRs applications, specifically in the synthesis and fuel use of ammonia. The chemical compatibility and thermal stability of the composite electrode material were assessed, and the electrode mechanism under hydrogenation/de-hydrogenation conditions was studied using electrochemical impedance spectroscopy.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Zinaida Shakel, Francisco J. A. Loureiro, B. M. G. Melo, D. Pukazhselvan, Sergey M. Mikhalev, Aliaksandr L. Shaula, Duncan P. Fagg
Summary: This work provides a detailed analysis of the electrochemical properties of lithium titanium phosphate grain boundary in all-solid-state lithium-ion batteries. The addition of boron significantly improves both the bulk and grain boundary conductivities due to Li-enrichment associated with charge compensation for the boron doping. Detailed analysis using the brick layer model and space charge analysis reveals a lower depletion of Li+ species at the grain boundary of the boron-doped sample, leading to a higher intrinsic grain boundary conductivity and overall conductivity.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Vanessa C. D. Graca, Laura I. V. Holz, Francisco J. A. Loureiro, Glenn C. Mather, Duncan P. Fagg
Summary: In recent years, there has been increasing interest in transition metal oxynitrides due to their attractive properties, such as high conductivity, hardness, and catalytic activity. Among them, niobium oxynitrides have shown great potential for various applications. This study focuses on the impact of ammonolysis conditions on the crystalline phase formation of niobium oxynitride compounds. The results demonstrate that careful control of ammonolysis conditions can tailor the anion composition, cation/anion ratio, and crystallographic structure of the materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Alberto Lopez-Grande, Glenn C. Mather, Francisco Munoz
Summary: LiPON films have been a major focus in Li-ion micro-batteries for low power applications, and understanding the relationship between composition, processing parameters and ionic conductivity has been a challenge for the materials community for the past three decades. A general model is proposed in this study to calculate the ionic conductivity of LiPON solid electrolytes for any composition. The model is based on the fundamental laws of chemical equilibrium and has been successfully used to predict the formation of different oxynitride compounds and their corresponding ionic conductivities.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)