Article
Biochemistry & Molecular Biology
Dionysios Vroulias, Eirini Staurianou, Theophilos Ioannides, Valadoula Deimede
Summary: This study prepared free-standing composite membranes by blending imidazolium-based ionic liquids (ILs) with a previously developed PEO-based copolymer, aiming to improve CO2 permeability and CO2/gas separation. The effect of IL loading, alkyl chain length, and anion nature on physicochemical and gas transport properties were investigated. The PEO-based copolymer with 40 wt% IL3-[HMIM][TFSI] exhibited the highest CO2 permeability and CO2/H2 and CO2/CH4 selectivities. The membrane also showed high water vapor permeability and H2O/CO2 ideal selectivity, suggesting potential applications in hydrogen purification and CO2 gas stream dehydration.
Article
Engineering, Chemical
Angela M. Thomas, Joris de Grooth, Jeffery A. Wood
Summary: Mixed matrix membrane materials (MMMs) are being studied for gas separation, and this research investigates the optimal combination of filler and matrix for maximum selectivity. Computational simulations show that adding a filler with similar permeability to the faster gas in the matrix can result in the highest selectivity change, and these results are compared to analytical solutions from various models. The role of interfacial defects in altering the transport properties of mixtures through the MMMs is also examined.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
A. Ioannidi, D. Vroulias, J. Kallitsis, T. Ioannides, V. Deimede
Summary: This study presents a new series of CO2 and water-selective aromatic polyethers bearing flexible PEO side chains synthesized via polycondensation reaction. These copolymers exhibit good mechanical and thermal stability, forming flexible membranes. The membrane permeation properties are significantly influenced by both PEO chain length and PEO loading.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
Harnoor Singh Sachar, Everett S. Zofchak, Nico Marioni, Zidan Zhang, Sanket Kadulkar, Tyler J. Duncan, Benny D. Freeman, Venkat Ganesan
Summary: Molecular dynamics simulations were conducted to investigate the effects of cation-ligand interactions on salt permeation in ligand-functionalized polymer membranes. The results showed that the ability of salt partitioning into the membrane increases while the salt diffusivity decreases with stronger cation-ligand interaction. Equimolar binary mixed salt systems exhibit higher selectivity in partitioning salts into the membrane compared to single salt systems. However, single salt systems have higher salt diffusivity than their mixed salt analogues. The selective partitioning of salts plays a more important role than the diffusivity selectivity in dictating the selective permeation of salts across the membrane.
Article
Engineering, Chemical
Garba O. Yahaya, Ali Hayek, Abdulkarim Alsamah, Yasser A. Shalabi, Melhan M. Ben Sultan, Rashed H. Alhajry
Summary: This study focused on developing block copolymer membranes for the purification of sour natural gas. Three DAM-based random copolymers were prepared and tested, with membranes prepared from 6FDA-DAM/6FpDA (1:3) showing the most attractive separation properties. Additionally, the block copolymer membrane 6FDA-DAM/6FDA-CARDO (1:1) exhibited potential application prospects compared to standard industrially used glassy polymer cellulose acetate.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ilsiya M. M. Davletbaeva, Oleg O. O. Sazonov, Sergey E. E. Dulmaev, Alexander V. V. Klinov, Azat R. R. Fazlyev, Ruslan S. S. Davletbaev, Sergey V. V. Efimov, Vladimir V. V. Klochkov
Summary: By using aminoethers of boric acid as the basis, polyurethane vapor-permeable and pervaporative membranes were studied. It was found that modifying the structure with bulk adducts can greatly improve the vapor permeability of the membranes and achieve efficient isopropanol dehydration.
Article
Engineering, Environmental
Hanaa M. Hegab, Parashuram Kallem, Ravi P. Pandey, Mariam Ouda, Fawzi Banat, Shadi W. Hasan
Summary: Graphene and its derivative nanomaterials provide a novel approach to manipulate selective mass transport mechanisms at the sub-nanoscale level, offering features such as atomic thickness, extraordinary mechanical strength, and superior chemical stability. The creation of holey graphene, a derivative of graphene, by eliminating atoms to create pores with favorable defect features, shows potential in water purification and desalination applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Sidra Saqib, Sikander Rafiq, Nawshad Muhammad, Asim Laeeq Khan, Ahmad Mukhtar, Sami Ullah, Mian Hasnain Nawaz, Farrukh Jamil, Chong Zhang, Veeramuthu Ashokkumar
Summary: The synergy between nitrogen-rich and CO2-philic filler and polymer in mixed matrix membranes enhances CO2 separation efficiency. Through meticulous preparation, the porphyrin filler and polysulfone polymer composite membranes exhibit high thermal stability and improved gas transport properties. The presence of Lewis basic functionalities in the filler-polymer interface contributes to the highly CO2-philic structure, leading to enhanced gas permeability and selectivity.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Dandan Chen, Qianqian Liang, Feng Gao, Tianyu Liu, Yunqi Wu, Zhuo Zheng, Jian Kang, Ruizhang Xu, Ya Cao, Ming Xiang
Summary: Inspired by biomimetic membranes, the liposomes-based reverse osmosis membranes were prepared by incorporating C14lyso liposomes into the polyamide selective layer. The concentration of liposomes could regulate the structure and performance of the membranes. The optimal membrane with a C14lyso concentration of 0.25 mg/mL showed high water permeance and NaCl rejection.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Kai Yan, Chenyan Liu, Jianzhong Ma
Summary: In this study, a functional membrane with both water vapor permeability and antibacterial properties was successfully prepared using DFNS@CS/WPUA membranes, showing increased WVP, excellent antimicrobial activity, improved stress, and water resistance.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biochemistry & Molecular Biology
Shanshan Liang, Liuyuan Zhu, Shuai Wang, Liang Chen, Haiping Fang
Summary: The fast reduced graphene-oxide (FRGO) membrane fabricated through a quick thermal treatment method demonstrates high ion sieving ability and ultrahigh water/ions selectivity, outperforming most other reduced GO membranes and even surpassing many GO-based membranes reported in literature. This offers new possibilities for high desalination performance in energy and environment-related applications, as well as insights into transport mechanisms within 2D laminar nanochannels.
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Polymer Science
Tushar Kanti Maiti, Jitendra Singh, Jagannath Majhi, Arihant Ahuja, Subrata Maiti, Prakhar Dixit, Sakchi Bhushan, Anasuya Bandyopadhyay, Sujay Chattopadhyay
Summary: This review discusses the advantages and limitations of high-temperature proton exchange membrane fuel cells (PEMFCs) and points out the research directions and development trends of high-temperature proton exchange membranes.
Article
Nanoscience & Nanotechnology
Maria Di Vincenzo, Alberto Tiraferri, Valentina-Elena Musteata, Stefan Chisca, Rachid Sougrat, Li-Bo Huang, Suzana P. Nunes, Mihail Barboiu
Summary: Inspired by biological proteins, artificial water channels (AWCs) can enhance the performance of traditional desalination membranes, providing a more efficient method for selective water transport in seawater desalination. By incorporating AWCs in composite polyamide, these biomimetic membranes exhibit high water-to-salt permeability under high pressure, suitable for seawater desalination, with a rejection rate of 99.5% for NaCl or 91.4% for boron.
NATURE NANOTECHNOLOGY
(2021)
Article
Polymer Science
Ilsiya M. Davletbaeva, Oleg O. Sazonov, Ilyas N. Zakirov, Askhat M. Gumerov, Alexander V. Klinov, Azat R. Fazlyev, Alexander V. Malygin
Summary: Increasing solute content and ionogenic groups leads to significant improvement in the water vapor permeability of organophosphorus polyurethane ionomers. Conditions promoting clustering of phosphate anions increase the permeability coefficient but may hinder water movement. Materials synthesized using polyoxyethylene glycol show the highest water vapor permeability and pervaporation characteristics.
Article
Chemistry, Physical
Muhammad Burhan, Qian Chen, Muhammad Wakil Shahzad, Doskhan Ybyraiymkul, Faheem Hassan Akhtar, Kim Choon Ng
Summary: Solar energy has great potential to provide electricity and high-quality thermal energy. The use of a CPV/T system with hydrogen and MgO-based storage solutions can efficiently harness solar energy resources.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Qian Chen, Muhammad Burhan, Muhammad Wakil Shahzad, Doskhan Ybyraiymkul, Faheem Hassan Akhtar, Yong Li, Kim Choon Ng
Summary: The paper proposes a zero liquid discharge system utilizing multi-effect distillation and evaporative crystallization to treat desalination brine with a salinity of 70 g/kg. The thermodynamic analysis shows that heat consumption can be effectively reduced by increasing the number of MED stages, while the specific heat transfer area decreases significantly with higher heat source temperatures. Techno-economic analysis demonstrates that cost reduction can be achieved through employing cost-effective heat sources and reducing heat consumption.
Article
Chemistry, Multidisciplinary
Rahul Shevate, Devin L. Shaffer
Summary: This study successfully synthesized large-area and ultra-thin 2D COFs using a simple interfacial polymerization technique. The COFs demonstrated tunable properties, resulting in high solvent fluxes and sharp molecular weight cutoffs in COF membranes. The research also found that the pore passage resistance and membrane critical interfacial tension influence mass transport.
Article
Engineering, Chemical
Mostapha Dakhchoune, Xuekui Duan, Luis F. Villalobos, Kuang-Jung Hsu, Jing Zhao, Marina Micari, Kumar Varoon Agrawal
Summary: The study investigates nanoporous carbon (NPC) films derived from the pyrolysis of phase-separated blockcopolymer/turanose films, showing a perforated lamellar (PL) nanostructure with an interlamellar spacing of approximately 2 nm. Gas transport through the NPC film primarily occurs in the Knudsen regime, leading to rapid gas transport with high H-2 permeance and selectivity over a temperature range of 25-300 degrees C. These properties make the NPC film a promising membrane support and mechanical reinforcement for high-permeance two-dimensional membranes for gas separation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Shiqi Huang, Shaoxian Li, Kuang-Jung Hsu, Luis Francisco Villalobos, Kumar Varoon Agrawal
Summary: Etching an ensemble of nanopores in single-layer graphene using a millisecond gasification reactor (MGR) allows for high-performance gas sieving; Analysis of etching conditions on nanopore formation using Raman spectroscopy and scanning tunneling microscope reveals the relationship between etching temperature and pore density; Optimized nanoporous single-layer graphene membranes show extremely attractive CO2 sieving performances with high CO2 permeance and selectivity.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Mojtaba Rezaei, Luis Francisco Villalobos, Kuang-Jung Hsu, Kumar Varoon Agrawal
Summary: This article reports a method for controlling graphene edges and vacancies, which is desired for various applications. The researchers found that CO2 can effectively control the etching rate without causing vacancy nucleation, showing great potential for practical applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Heng-Yu Chi, Cailing Chen, Kangning Zhao, Luis Francisco Villalobos, Pascal Alexander Schouwink, Laura Piveteau, Kenneth Paul Marshall, Qi Liu, Yu Han, Kumar Varoon Agrawal
Summary: Poly(triazine imide) (PTI) is a graphitic carbon nitride with ordered pores at the angstrom scale. Acid treatment can remove ions and create open pore structure. The presence of ion-depleted open pores is directly observed using atomic resolution microscopy for the first time.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Wan-Chi Lee, Anshaj Ronghe, Luis Francisco Villalobos, Shiqi Huang, Mostapha Dakhchoune, Mounir Mensi, Kuang-Jung Hsu, K. Ganapathy Ayappa, Kumar Varoon Agrawal
Summary: This study demonstrates that placing angstrom-sized oxygen-functionalized graphene nanopores at the liquid-vapor interface can greatly enhance water evaporation rates. The presence of these nanopores decreases the free energy barrier for water evaporation and increases the rotational and translational dynamics of water molecules, leading to a significant increase in evaporation flux. These findings have potential applications in energy-efficient technologies relying on water evaporation.
Article
Chemistry, Multidisciplinary
Shiqi Huang, Luis Francisco Villalobos, Shaoxian Li, Mohammad Tohidi Vahdat, Heng-Yu Chi, Kuang-Jung Hsu, Luc Bondaz, Victor Boureau, Nicola Marzari, Kumar Varoon Agrawal
Summary: By introducing epoxidation, pores can be generated in graphene to achieve precise control over porosity, and the gasification process can be manipulated to form pores of different sizes to effectively sieve gas molecules.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sajjad Hussain, Muhammad Hafi Wadgama, Asim Laeeq Khan, Muhammad Yasin, Faheem Hassan Akhtar
Summary: Waste plastic upcycling is gaining attention for membrane fabrication, but existing literature is limited. This study presents the performance of membranes made from recycled PET for water desalination. Optimization of membrane performance was achieved through fine-tuning PET, cosolvent, and additive concentration, and coagulation bath temperature. The study also demonstrated the use of PET membranes as support for thin-film composite membranes with high permeance and NaCl rejection. These findings offer prospects for high-performance membranes using commercial plastic waste.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Coatings & Films
Vepa Rozyyev, Rahul Shevate, Rajesh Pathak, Julia G. Murphy, Anil U. Mane, S. J. Sibener, Jeffrey W. Elam
Summary: In this study, vapor-phase grafting of five different silane compounds on Al2O3 surfaces was performed. The structure and density of grafted aminosilanes were found to be influenced by their chemical reactivity and steric constraints around the silicon atom as well as by the nature of the anchoring functional groups. Methyl substituted aminosilanes yielded more hydrophobic surfaces with a higher surface density at higher grafting temperatures. Thiol and nitrile terminated silanes were also studied and compared to the aminosilane terminated surfaces. Uniform monolayer coatings were observed for ethoxy-based silanes, but chlorosilanes exhibited nonuniform coatings.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Multidisciplinary Sciences
Yunxiang Bai, Beibei Liu, Jiachen Li, Minghui Li, Zheng Yao, Liangliang Dong, Dewei Rao, Peng Zhang, Xingzhong Cao, Luis Francisco Villalobos, Chunfang Zhang, Quan-Fu An, Menachem Elimelech
Summary: The successful implementation of thin-film composite membranes (TFCM) for challenging solute-solute separations in the pharmaceutical industry requires fine control over the microstructure and thickness of the selective layer. In this study, stevioside, a contorted glycoside derived from plants, was introduced as a promising monomer for optimizing the microstructure of TFCM. The use of stevioside produced thin selective layers with ideal microporosity for antibiotic desalination, exhibiting high water permeance, antibiotic desalination efficiency, antifouling performance, and chlorine resistance.
Article
Nanoscience & Nanotechnology
Rajesh Pathak, Vepa Rozyyev, Rahul Shevate, Anil U. Mane, Jeffrey W. Elam
Summary: Polymer membranes can be modified by atomic layer deposition (ALD) and sequential infiltration synthesis (SIS) to control pore size and surface chemistry. Short precursor exposure times are critical for conformal ALD, while longer exposure times result in SIS and brittle membranes. ALD with Al2O3 decreases water permeance and increases membrane hydrophilicity. Hydrophilic (SnO2) coatings show higher water flux, while hydrophobic (In2O3) coatings show lower water flux through the membranes.
ACS APPLIED NANO MATERIALS
(2023)
Article
Environmental Sciences
Rahul Shevate, Dana R. Flores, Parisa Taheri, Deepak A. Musale, Devin L. Shaffer
Summary: This study investigates the desalination of hypersaline produced water using membrane distillation. The results show that polytetrafluoroethylene (PTFE) is the most effective membrane material, and a chemical cleaning protocol successfully removes fouling from the PTFE surface. These findings enhance our understanding of the failure mechanisms of hydrophobic membranes and contribute to the development of more efficient membrane materials and cleaning protocols. Furthermore, they advance the prospects of reusing hypersaline produced water through membrane distillation.
Article
Chemistry, Multidisciplinary
Luis Francisco Villalobos, Deepu J. Babu, Kuang-Jung Hsu, Cedric Van Goethem, Kumar Varoon Agrawal
Summary: Gas separation is a crucial industrial process and plays a significant role in the shift towards renewable energy. Traditional gas separation methods are energy-intensive, leading to high energy consumption in the chemical industry. This has driven research towards the development of high-performance membranes using novel materials like nanoporous single-layer graphene. These membranes have the potential to overcome the limitations of conventional polymer membranes, offering improved selectivity and permeance. This Account summarizes the progress in nanoporous single-layer graphene membranes for gas separation, discussing the mechanisms of gas transport, design elements for high-performance membranes, synthesis routes, and post-synthetic modifications. Practical aspects of membrane preparation and scale-up are also discussed.
ACCOUNTS OF MATERIALS RESEARCH
(2022)
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)