Article
Chemistry, Analytical
Xin Gao, Hengwei Zhang, Erjun Guo, Fei Yao, Zengze Wang, Hongyan Yue
Summary: The research involved the preparation of graphene oxide (GO) nanosheets and two-dimensional Ni(OH)2 with excellent uniformity using hydrothermal and Hummers methods, leading to the formation of NiO-rGO nanosheets with optimized electrochemical performance and excellent capacity. The hybrid NiO-rGO nanosheets electrode exhibited homogeneously dispersed NiO nanosheets on the surface of rGO nanosheets, delivering a capacity of 343 C/g (1 A/g) and achieving a high energy density of 5.4 Wh/kg at a power density of 0.43 kW/kg in the voltage range of 0-1.4 V. Additionally, the symmetric supercapacitor made from NiO-rGO nanosheets showed an excellent capacitance retention of 90% after 10,000 cycles at 10 A/g.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Yang Zhou, Xinying Cheng, Feng Huang, Zhao Sha, Zhaojun Han, Junyan Chen, Wenmu Yang, Yuyan Yu, Jin Zhang, Shuhua Peng, Shuying Wu, Andrew Rider, Liming Dai, Chun H. Wang
Summary: A new approach to create hierarchically structured electrodes for supercapacitors allows them to retain capacity under mechanical deformation, enabling the fabrication of high-performance moldable energy storage devices for wearable electronics and wireless electronic skins.
Article
Energy & Fuels
Aranhikundan Shabeeba, Lijin Rajan, Madari Palliyalil Sidheekha, Mohamed Shahin Thayyil, Yahya A. Ismail
Summary: The development of sensing supercapacitors capable of detecting electrical, thermal, and chemical variables in their working environment is a significant challenge. Hybrid film supercapacitors made of conducting polymer chains show improved specific capacitance with increased coating times and exhibit good cycling stabilities. These supercapacitors are able to sense and respond to changes in their surrounding conditions, potentially serving as electrical, thermal, and chemical sensors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
M. A. Yewale, R. A. Kadam, N. K. Kaushik, L. N. Nguyen, Umesh T. Nakate, L. P. Lingamdinne, J. R. Koduru, P. S. Auti, S. V. P. Vattikuti, D. K. Shin
Summary: Nanostructured binary metal oxides have the potential to improve electrochemical performance due to their structural stability, electronic conductivity, and multiple oxidation states. In this study, uniform NiCo2O4 nanoballs were successfully prepared and investigated for their supercapacitive properties. The nanoballs prepared at 14 h reaction time showed the highest supercapacitor performance, with the highest electrochemical active surface area and transfer coefficient, as well as good stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Multidisciplinary
Yeon Ju Kwon, Ho Seok Park, Young-Pyo Jeon
Summary: Zinc-ion hybrid supercapacitors are a promising energy storage solution for the future, and three-dimensional graphene frameworks show great potential as electrode materials due to their excellent conductivity and high surface area. This study presents a simple and scalable method to fabricate high-capacitance three-dimensional graphene-based electrodes.
Article
Chemistry, Physical
Pan Xiao, Liujun Cao, Haorui Wang, Guilong Yan, Qun Chen
Summary: The electrode materials, including 3D ZnCo2O4/GA cathode and 3D N-AC/GA anode, synthesized in this study by growing Zn-Co MOF and ZIF-8 on the 3D graphene aerogel showed excellent rate capability and capacity retention. The 3D ZnCo2O4/GA//3D N-AC/GA device achieved high energy density, high power density, and good cycle stability.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Jan Dockal, Martin Lisal, Filip Moucka
Summary: This study investigates the adsorption behavior of ions in aqueous electrolyte solutions in contact with graphene surfaces. The simulations show that large ions are attracted to oppositely charged electrodes, while the adsorption behavior of small ions is counterintuitive. In mixed-cation solutions, one cation supports the adsorption of the other cation, while the other cation weakens the adsorption of the first cation. The study provides insights into the factors influencing ion adsorption in electrolyte solutions.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Xiaoxiao Qu, Sangheon Jeon, Jeonghwa Jeong, Weiwei Kang, Baolin Xing, Chuanxiang Zhang, Suck Won Hong
Summary: As advanced energy storage devices for commercial applications, hybrid supercapacitors (HSCs) assembled with electric double-layer capacitive- and battery-type electrodes combine the advantages of electric double-layer capacitors and batteries. Therefore, it offers very high potential as well as higher energy density with sufficient durability than other energy storage devices. However, the selection of electrodes has a considerable determining effect on the performance of HSCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
B. Khademi, M. R. Nateghi, M. R. Shayesteh, N. Nasirizadeh
Summary: A new low-cost and high-voltage aqueous symmetric supercapacitor cell was developed using a blend of graphene oxide and reduced graphene oxide active material. The device exhibited a reliable operating cell voltage of 2.3 V and a maximum specific energy of 43.8 W h/kg, retaining 84% of its initial specific energy even after 10,000 charge/discharge cycles. The superior energy storage capability is attributed to the high specific surface area of reduced graphene oxide and the electrochemical activity of graphene oxide surface functional groups.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Biochemistry & Molecular Biology
Apurba Ray, Jenny Roth, Bilge Saruhan
Summary: This study reports the optimization and fabrication of micro-supercapacitors using laser-induced interdigital structured graphene electrodes. The manufactured micro-supercapacitors show a wide stable potential window and good cyclic stability, indicating their potential in peak energy storage.
Article
Chemistry, Physical
Zongqi Li, Boyang Hu, Ruitao Yu, Tian Tian, Zengcai Guo, Jingbo Mu, Xiaoliang Zhang, Guangshuo Wang, Xiaoyan Liu, Aifeng Liu
Summary: Hollow CoSe2 nanospheres wrapped with reduced graphene oxide (rGO) nanosheets are fabricated, which can reduce aggregation and maintain structural integrity. The wrapping of rGO nanosheets increases electrical conductivity and reduces the adsorption energy of OH- at the CoSe2/rGO interface. The hollow CoSe2/rGO nanocomposites exhibit specific capacities of 757C g-1 at 3 A/g and 552C g-1 at 20 A/g, with a capacity retention of 92% over 5000 cycles at 10 A/g.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Qingxiao Zhou, Li Wang, Weiwei Ju, Dongtao Su, Juncheng Zhu, Yongliang Yong, Shilin Wu
Summary: The charge storage capacity, quantum capacitance, and atomic structures of transition-metal doped graphene-like/graphene heterostructures were studied using density functional theory (DFT). The impact of transition-metal (TM) doping on the capacitance capacity of different types of heterostructures was also examined. The findings showed that doping was more effective than vacancy defects in enhancing the quantum capacitance of heterostructures. The Sc-doped WSe2/graphene exhibited the highest quantum capacitance (838.24 mu F/cm2), making it a promising material for supercapacitors.
ELECTROCHIMICA ACTA
(2023)
Article
Nanoscience & Nanotechnology
Jianghe Liu, Zeba Khanam, Sultan Ahmed, Ting Wang, Hengtai Wang, Shenhua Song
Summary: The gel electrolyte based on the PVA/Zn/ethylene glycol system shows high ionic conductivity and excellent antifreezing performance. The antifreezing Zn-ion hybrid supercapacitor fabricated with this gel electrolyte exhibits outstanding electrochemical properties and cyclic stability, even under low temperatures, demonstrating its potential for flexible energy storage devices in subzero-temperature environments.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Tingting Liu, Lei Chen, Ling Chen, Guoxing Tian, Mingtong Ji, Shuai Zhou
Summary: In this study, layered delta-MnO2 was prepared by a liquid phase method, and a composite of e-MnO2@rGO with unique structure was obtained. The electrochemical performance of the composite was investigated, demonstrating high specific capacitance and excellent cycle stability.
Article
Chemistry, Multidisciplinary
Vahid Babaahmadi, S. E. M. Pourhosseini, Omid Norouzi, Hamid Reza Naderi
Summary: This study produces special-structured activated carbon derived from luffa sponge through carbonization and KOH activation, which proves to be an encouraging novel electrode material in supercapacitors. Reduced graphene oxide (rGO) and manganese dioxide (MnO2) are synthesized on luffa-activated carbon (LAC) to enhance its supercapacitive behavior. The combination of microporous LAC, rGO sheets and MnO2 nanoparticles results in high-performance hierarchical supercapacitor electrodes.
Article
Engineering, Environmental
Wen Ji, Xianbiao Wang, Tianqi Ding, Soufian Chakir, Yongfei Xu, Xianhuai Huang, Huanting Wang
Summary: This study successfully prepared a nylon-6@UiO-66-NH2 fiber membrane and demonstrated its significant performance in Cr(VI) removal. The unique structure of the fiber membrane allows for selective adsorption and photocatalytic reduction of Cr(VI), leading to improved efficiency in Cr(VI) removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chengpeng Wei, Weisheng Yu, Yang Zhang, Fan Zhang, Ming Li, Xianhe Shen, Kaiyu Zhang, Xiaolin Ge, Liang Wu, Tongwen Xu
Summary: In this study, a novel AAEMs with pyrene-containing ether-free polymer backbones and rigid pyrene units was designed, which showed improved ion conductivity, chemical durability, and mechanical strength.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Weisheng Yu, Jianjun Zhang, Dong-Mei Huang, Xian Liang, Kaiyu Zhang, Yan Xu, Hongjun Zhang, Bangjiao Ye, Xiaolin Ge, Tongwen Xu, Liang Wu
Summary: We have demonstrated for the first time the effects of cis-trans conformation on the properties of anion exchange ionomers. The twisted cis-conformation with abundant subnanoscale free volume cavities enhances oxygen permeability and water adsorption. Additionally, the nonplanar conformation of the cis-ionomer reduces undesired absorption on Pt and Pt-Ru surfaces, thus improving the electrochemical performance of catalyst layers. The theoretical and electrochemical investigations provide mutual support for our proof-of-concept. The catalyst layer incorporating cis-ionomer shows significant increases in limiting current density and electrochemically active surface area (51% and 54% respectively). The H-2/O-2 single-cell peak power density of the cis-membrane electrode assembly (c-MEA) is increased by 56% (1.0 vs 0.64 W cm(-2)) compared to the t-MEA at 100% relative humidity (RH). Furthermore, the performance of c-MEA is particularly outstanding at low humidity (increased by 114% and 113% at 80% and 60% RH respectively).
ACS ENERGY LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Xing Wu, Junyang Zhang, Huanting Wang, Yuning Huo, Zongli Xie
Summary: A new type of graphene oxide (GO)-based mixed-dimensional membrane, assembled with two-dimensional GO nanosheets and zero-dimensional copper(I) oxide-incorporated titanium dioxide photocatalyst (CT), is developed. The CT/GO membranes exhibit superior antifouling properties, high water permeance, and improved selectivity to dye molecules. In addition, the embedded photocatalysts enhance the antibacterial activity and organic dye degradation performance under visible light irradiation. This study provides a promising solution to enhance the nanofiltration performance and antibacterial properties of GO membranes for practical applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yanran Zhu, Qian Chen, Yue Zhou, Xingya Li, Liang Ge, Tongwen Xu
Summary: Acid recycling through cation exchange membranes (CEMs) has gained significant attention in traditional and advanced manufacturing industries due to its economic and environmental benefits. However, current polymeric CEMs lack bi-functional sites and only have constant ion channels. In this study, a series of dibenzo-18-crown-6 (DB18C6) functionalized sulfonated poly(biphenyl alkylene) membranes were developed. These membranes formed ordered ion channels through electrostatic interactions, resulting in a low-swelling synergistic hydrophilic network. The prepared membranes exhibited high proton permeation rates and a high selectivity for H+/Fe2+ transport, surpassing previously reported membranes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Editorial Material
Engineering, Chemical
Phillip E. Savage, Linda J. Broadbelt, Marianthi Ierapetritou, Bo-Geng Li, Massimo Morbidelli, Tina M. Nenoff, Ashwin W. Patwardhan, Aaron Scurto, Huanting Wang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Editorial Material
Chemistry, Physical
Jun Lu, Huanting Wang
Summary: A high ligand/metal ion concentration ratio strategy eliminates lattice defects in polycrystalline zirconium metal-organic framework membranes, enhancing their molecular sieving performance.
Article
Engineering, Chemical
Tingting Xu, Yue Wang, Qian Chen, Yanran Zhu, Wenmin Li, Fangmeng Sheng, Liang Ge, Xingya Li, Tongwen Xu
Summary: Mixed matrix membranes (MMMs) are promising in ion separation due to their simple preparation process and potential industrial applications. By using a soluble porous organic cage (POC) as the filler, large scale and interfacial gap-free ionic polymer membranes can be fabricated with high ion flux and selectivity, as well as excellent stability during the electrodialysis process.
Article
Engineering, Chemical
Huangying Wang, Yang Wang, Junying Yan, Rong Fu, Baoying Wang, Chenxiao Jiang, Yaoming Wang, Tongwen Xu
Summary: By comparing the bipolar membrane electrodialysis (BMED) with the chlor-alkali process for sodium hydroxide production, it was found that BMED has lower energy consumption and less impact on global warming at moderate salt concentrations. Therefore, BMED is a promising and sustainable technique for base production.
Article
Engineering, Chemical
Bowen Hou, Rong Fu, Huangying Wang, Junying Yan, Ruirui Li, Baoying Wang, Chenxiao Jiang, Yaoming Wang, Tongwen Xu
Summary: Bipolar membrane crystallization (BMC) technology was proposed as a one-step conversion method for sulfate lithium into high-purity lithium hydroxide monohydrate crystals. By using continuous saturated feedstock in the salt compartment, Li2SO4 can be converted into 5+ mol/L LiOH at a high current density. The unique design of this technology allows the production of 99.9% LiOH & BULL; H2O, demonstrating its feasibility and competitiveness for waste lithium recovery.
Article
Engineering, Environmental
Huangying Wang, Haiyang Yan, Kang Peng, Junying Yan, Rong Fu, Ruirui Li, Baoying Wang, Chenxiao Jiang, Yaoming Wang, Tongwen Xu
Summary: A direct electrochemical substitution electrodialytic system is proposed to convert CO2 and Na2SO4 into high value-added NaHCO3 and H2SO4. The system achieves soda preparation without using ammonia as a feedstock, with a specific energy consumption of 1.2 kWh/kg NaHCO3 and a current efficiency of 83%. This proof-of-concept study offers an effective technological pathway for converting notorious wastes into valuable resources, enabling concurrent carbon reduction and wasted salt utilization.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Hongyu Ma, Yun Xia, Zhouyou Wang, Tongwen Xu, George P. Simon, Huanting Wang
Summary: This study presents a dual-channel ion conductor membrane for concentration-driven lithium-selective ion diffusion, achieving high selectivity and high flux in lithium extraction. The membrane design has the potential for low energy consumption and minimal environmental impact in the field of lithium-ion batteries.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Wanjie Song, Xin Zhang, Cui Yang, Zhengjin Yang, Liang Wu, Xiaolin Ge, Tongwen Xu
Summary: Anion-exchange membranes that selectively transport OH(-), known as alkaline membranes, are increasingly important for electrochemical energy devices. This article discusses the research progress of alkaline membranes in terms of backbone structures, synthesis methods, and applications. The evaluation of synthesis methods and description of membrane stability enhancement strategies provide valuable insights for structural design. The future priority of addressing alkaline membranes from a scientific and engineering perspective is presented to accelerate the deployment of relevant technologies in alkaline media.
ACS CENTRAL SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Baoying Wang, Yaoming Wang, Tongwen Xu
Summary: Polymer inclusion membranes (PIMs) have attracted significant attention in metal separation and recovery due to their advantages of high selectivity, long service life, high stability, flexible design, and low cost. This review provides an overview of the preparation methods and composition of PIMs, discusses the relationship between the physicochemical properties of membrane components and the performance of PIMs, elucidates the metal transport mechanism, and summarizes the modification and separation intensification methods. The challenges and perspectives in the field of metal separation and recovery are also proposed.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Weisheng Yu, Xiaoqi Yang, Xian Liang, Yan Xu, Xianhe Shen, Xiaolin Ge, Liang Wu, Tongwen Xu
Summary: Reducing catalyst loading and humidity dependence is important for commercializing PEMFCs. The use of fluorine-free hydrocarbon membranes instead of perfluorinated sulfonic-acid PEMs can reduce manufacturing costs. The AS-MEA, fabricated using an all spraying method, shows superior performance compared to the CCS-MEA, particularly at low humidity and catalyst loading, and also exhibits good durability.
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)