Article
Chemistry, Multidisciplinary
Rongji Cui, Xiaosheng Huang, Guodong Zhang, Zhicheng Tang
Summary: A novel 3D-structured Mn/YTiOx nanotube catalyst was designed and its catalytic performance for NH3-SCR reaction at low temperature was investigated. The results showed that an appropriate amount of Y doping improved the dispersion of MnOx and increased the concentration of active sites, thus enhancing the activity, N-2 selectivity, and resistance to H2O/SO2 of the catalyst. The Mn/3%YTiOx catalyst exhibited the highest activity with over 90% NO conversion and N-2 selectivity in a wide temperature range from 120 to 320 ℃.
Article
Chemistry, Multidisciplinary
Shuai Ji, Zhifang Li, Kun Song, Hairui Li, Yueyu Li, Jian Yang, Mingjie Li, Chonglong Yang
Summary: The Mn-Ce co-doped TNU-9 catalyst showed excellent catalytic performance in the NH3 selective catalytic reduction of NOx, with high NOx conversion rate and N-2 selectivity, as well as superior water and sulfur resistance. The use of TNU-9 as a carrier enhances the activity and stability of the bimetallic catalyst.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Qi An, Guangyan Xu, Jianhua Liu, Yingjie Wang, Yunbo Yu, Hong He
Summary: In this study, a bifunctional Pt/Cu-SSZ-13 catalyst with catalytic selectivity and selective catalytic reduction function was successfully prepared. The catalyst exhibited excellent catalytic performance during NH3 oxidation under practical conditions containing water vapor, achieving >85% N2 selectivity over the whole temperature range.
Article
Energy & Fuels
Xiaodi Li, Shan Ren, Lian Liu, Xiangdong Xing, Lin Chen, Jiangling Li, Jian Yang, Qingcai Liu
Summary: The deactivation of denitration catalysts by heavy metals is still a challenge in the practical application of selective catalytic reduction of NOx with NH3. In this study, a novel anti-poisoning strategy was proposed by designing a CeO2/ZrO2 catalyst supported by SO42-/ZrO2 superacid. The introduction of SO42-/ZrO2 significantly enhanced the catalytic performance, leading to high NOx removal efficiency throughout a wide temperature range.
Article
Engineering, Environmental
Xiaoxiang Wang, Heyao Ma, Beilei Li, Yaqing Wang, Shihan Zhang, Wei Li, Sujing Li
Summary: A flower-like 0.1%WO3/CeO2 catalyst was fabricated with high-efficiency for the selective reduction of NOx by NH3. The flower-like structure promoted a more uniform dispersion of tungsten species on the support and a stronger interaction between WO3 and CeO2, resulting in increased acid sites and surface vacancies. The catalyst exhibited significant SCR performance, with 90% NOx conversion and 95% N2 selectivity within a wide temperature range. The study provides a new strategy for developing high-efficiency ceria supported NH3-SCR catalyst.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Santhana Krishnan Perumal, Umasankar Samidurai, Venu Gopal Balashanmugam, Hyun Sung Kim, Preeti Aghalayam
Summary: High surface area mesoporous solid support is used to develop cost-effective catalysts for NOx abatement at low temperatures. In this study, Al, Ti, and Zr were incorporated into SBA-15, a high surface area mesoporous material, through a direct synthesis approach. The developed MnCu bimetallic catalyst, supported by the modified SBA-15, showed superior deNOx activity for SCR of NO with NH3 at temperatures as low as 260 degrees C. Physicochemical studies were conducted on the catalysts, and the optimal deNOx condition and activity were discussed. The exceptional deNOx activity can be attributed to the morphology, oxygen vacancies, and high ratio of Mn3+ + Mn4+/Mn on the catalyst surface.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Linfeng Xu, Chengling Pan, Sen Li, Chengjie Yin, Jinbo Zhu, Yusong Pan, Qi Feng
Summary: Three-dimensional mesoporous lepidocrocite-type layered sodium titanate (LST) was constructed through electrostatic interaction at room temperature, exhibiting superior adsorption properties for cationic dyes. An ion-exchange mechanism was proposed for cationic dye adsorption on LST, suggesting stoichiometric exchange between Na+ ions in the LST interlayer and dye molecules in solution.
Article
Chemistry, Physical
Devaiah Damma, Dimitrios K. Pappas, Thirupathi Boningari, Panagiotis G. Smirniotis
Summary: Fresh Mn/Ce-TNT and Mn/Sb-TNT catalysts showed good NH3-SCR activity, but a significant decrease in activity was observed after thermal aging, while the Mn/Y-TNT catalyst maintained its good catalytic performance under these conditions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Shaohua Xie, Yuejin Li, Chunying Wang, Ke-Bin Low, Kailong Ye, Daekun Kim, Xing Zhang, Yaobin Li, Yan Zhang, Fengyuan Shi, Lu Ma, Steven N. Ehrlich, Fudong Liu
Summary: A significant promotion effect of colloidal SiO2 on Pd/TiO2 catalyst for improving the activity and N2 selectivity in the selective catalytic reduction of NO with H2 (H2-SCR) was reported, both before and after hydrothermal aging. The SiO2 addition not only benefited the formation of more oxygen vacancies but also increased Pd dispersion and created rich Pd-SiO2 interfaces on Pd-SiO2/TiO2 catalyst. On the promoted Pd-SiO2/TiO2, the Pd-TiO2 interface could facilitate NO adsorption and activation, and the created Pd-SiO2 interface could benefit H2 adsorption and dissociation, thus contributing to its significantly improved H2-SCR activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Hengheng Liu, Fengyu Gao, Songjin Ko, Ning Luo, Xiaolong Tang, Honghong Yi, Yuansong Zhou
Summary: In this study, a low-temperature NH3-SCR denitrification catalyst was prepared using Chlorella cells. Compared to the pure MnOx catalyst, the Chlorella@Mn catalyst exhibited higher NOx conversion, N2 selectivity, and resistance to H2O poisoning. The adsorption process of Chlorella cells involved electrostatic interaction, complexation/chelation, and ion exchange mechanisms.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Yan Li, Yanxin Li, Ruonan Wang, Chenghui Xia, Haiyan Li, Lixin Cao, Bohua Dong
Summary: Multimetallic systems have high catalytic activity due to the ability to change electronic and crystal structures. However, the development of multimetallic catalysts is limited by the complexity of homogeneous catalyst preparation and the understanding of synergistic interactions. In this study, atomically thin quinary CNWFVOx nanobelts were synthesized as an OER electrocatalyst, showing excellent catalytic performance with low overpotentials and high stability. The synergistic effect of multiple metals and the amorphous ultra-thin structure significantly enhanced the catalyst's activity and kinetics.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Rujing Chi, Xiaoqiang Wang, Yue Liu, Zhongbiao Wu
Summary: In this study, Cu-Ce/TS-am catalysts were synthesized to enhance the catalytic activity and water resistance for low-temperature NOx reduction with ammonia. The optimized Cu-Ce/TS-am sample achieved over 90% NOx conversion at 180-350 degrees C in the presence of water. The addition of Si improved specific surface area, total acidity, and oxygen mobility, promoting SCR activity. Moreover, alkali treatment optimized the mesoporous pore structure and increased the exposure of active sites and acidic sites, further enhancing water resistance and catalytic activity. These findings provide useful guidelines for developing highly active and water-resistant SCR catalysts in real applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Dan Li, Jianguo Li, Lijun Qin, Yiyun Hu, Ting Gong, Wangle Zhang, Longfei Hui, Hao Feng
Summary: By synthesizing high surface area H-titanate nanotubes through a hydrothermal route, and depositing iron oxide (Fe2O3) on them using atomic layer deposition (ALD), H-titanate@Fe2O3 composites were produced and used as combustion catalysts for thermal decomposition of ammonium perchlorate (AP). The results show that H-titanate@Fe2O3 catalysts effectively promote the thermal decomposition of AP, reducing the decomposition temperature and apparent activation energy. The excellent catalytic activity of H-titanate@Fe2O3 catalysts is attributed to the finely dispersed Fe2O3 nanoparticles anchored on the surface of H-titanate, generating very active interface sites for the decomposition of AP, demonstrating the potential of interface engineering in preparing efficient propellant combustion catalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
Ganxue Wu, Siyi Liu, Zhiqiang Chen, Qiyuan Yu, Yinghao Chu, Hong Xiao, Hong Peng, Dexin Fang, Shihuai Deng, Yaoqiang Chen
Summary: The catalytic performance of Cu/Fe-SSZ-13 catalyst treated with base leaching was significantly improved in catalytic reduction of NOx emissions in diesel exhaust, including catalytic activity, hydrothermal stability, and sulfur resistance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Applied
Gang Li, Dongsen Mao, Mengxi Chao, Gehua Li, Jun Yu, Xiaoming Guo
Summary: A series of TiO2-Al2O3 composites were synthesized and used as supports for MnCeOx catalysts, with MnCeOx/TiO2-Al2O3 showing higher activity and better tolerance. This is attributed to higher concentrations of Mn4+ and chemisorbed oxygen species, stronger reducibility, and larger adsorption capacity.
JOURNAL OF RARE EARTHS
(2021)
Article
Environmental Sciences
Yan Tan, Shuwen Han, Yi Chen, Zhongbiao Wu, Shun-cheng Lee
Summary: The study examines the changes in six major air pollutants in Hong Kong over a ten-year period. It finds that the implemented pollution control schemes have been effective in reducing the concentrations of these pollutants, but there is still a gap to meet the targets set by the World Health Organization. The study also highlights an increasing trend in ozone pollution and the slower improvement in air quality health index at roadside stations, suggesting the need for more policies and attention to roadside air quality and its impact on pedestrians' health.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Yafeng Wang, Jialian Ding, Ping Zhou, Jilin Liu, Zhiyuan Qiao, Kai Yu, Jie Jiang, Bin Su
Summary: In this study, the electrochemiluminescence (ECL) generation by Ru(bpy)(3)(2+) and five tertiary amine coreactants was investigated. The ECL distance and reactivity of the coreactants were measured, and the integrated ECL intensity was used to quantitatively evaluate the reactivity. Statistical analysis of ECL images of labeled microbeads showed that the ECL distance and reactivity of the coreactant determine the emission intensity and sensitivity of immunoassay. BIS-TRIS was found to balance the trade-off between ECL distance and reactivity, resulting in a 236% increase in sensitivity compared to TPrA in the bead-based immunoassay of carcinoembryonic antigen.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Bing Zhou, Quanli Ke, Kai Chen, Meijun Wen, Guokai Cui, Ying Zhou, Zhenyu Gu, Xiaole Weng, Hanfeng Lu
Summary: In this study, Mn/ZSM-5 catalysts with different Mn contents were prepared and their adsorption and catalytic performance in toluene degradation were investigated. The results showed that 4 wt% Mn/ZSM-5 had a toluene conversion rate of 90% at 30°C. The cycling and ozone utilization rate experiments demonstrated that 4 wt% Mn/ZSM-5 maintained good adsorption capacity even after four consecutive adsorption-ozonation cycles.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Engineering, Environmental
Yunpeng Long, Yuetan Su, Meiling Chen, Shuang Lu, Xueqing Luo, Zhenghang Zhu, Zhongbiao Wu, Xiaole Weng
Summary: The conventional V2O5-WO3/TiO2 catalyst is significantly poisoned by arsenic, resulting in a loss of catalytic activity. The doping of Al or Mo has been found to promote the arsenic resistance in NH3 selective catalytic reduction (NH3-SCR), but the mechanism behind this promotion is still debated. Our experimental and theoretical studies reveal that arsenic species preferentially adsorb on Al or Mo, forming arsenates and avoiding bonding with the active V sites. Furthermore, Al doping reduces the mobility of near-surface and bulk lattice oxygen, while Mo doping enhances MPC activity and COx selectivity through vanadyl polymerization and an enriched V5+ state.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Yunpeng Long, Jiajia Liu, Meiling Chen, Renna Li, Xiaole Weng, Zhongbiao Wu
Summary: This study successfully improved the catalytic activity for the degradation of chlorinated organic compounds and reduced the generation of byproducts by modifying the catalyst with phosphate. The optimized modification condition was found to be the use of 1% phosphate, which achieved the best catalytic activity and byproduct inhibition.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Physical
Pengfei Sun, Lujun Cheng, Shan Gao, Xiaole Weng, Xiaoping Dong
Summary: Chlorinated volatile organic compounds (CVOCs) emitted from industrial processes are toxic to the environment and humans. Catalytic combustion is a promising method to convert CVOCs into less harmful substances, but it still results in the formation of toxic byproducts. The combination of combustion and hydro-dechlorination processes may provide a solution for complete elimination of CVOCs without secondary pollution.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Applied
Wenxi Zhou, Kai Chen, Quanli Ke, Haoru Wang, Xiao Chen, Yufeng Liu, Guokai Cui, Xiaole Weng, Ying Zhou, Hanfeng Lu
Summary: In this study, the catalytic performance and mechanism of ethylene oxide oxidation on Pt-Ru/CuCeOx bimetallic catalyst were investigated. The results showed that the introduction of Ru into the Pt catalyst greatly enhanced the oxidation activity, with a lower full oxidation temperature compared to Pt/CeO2 catalyst. XPS spectra revealed strong interaction between Ru species and the CuCeOx support, which facilitated oxygen activation on Pt species and enhanced catalytic activity. DRIFTs analysis indicated that the oxidation process followed the MvK catalytic mechanism at low temperature and the L-H catalytic mechanism at higher temperature.
JOURNAL OF RARE EARTHS
(2023)
Article
Engineering, Environmental
Qingji Ying, Xiaoqiang Wang, Yaoyu Zhang, Zhongbiao Wu, Yue Liu
Summary: A novel tandem catalyst, Cu-ZSM-5@Ru/S-1, was developed for the catalytic combustion of dichloromethane (DCM) to achieve a synergistic effect between dissociative adsorption and deep oxidation. The catalyst exhibited high DCM conversion and mineralization rates of over 90% with a low Ru loading of 0.2 wt % under a 5% H2O atmosphere at 290 degrees C. The study also revealed that the Cu-ZSM-5@Ru/S-1 catalyst had significantly higher activity in comparison to Cu-ZSM-5 and Ru/HZSM-5 catalysts. In addition, the catalyst met the national standard for PCDD/F emissions from municipal solid waste incineration.
ACS ES&T ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yuxiong Wang, Guang Hong, Yaoyu Zhang, Yue Liu, Wanglai Cen, Lianzhou Wang, Zhongbiao Wu
Summary: Atomically dispersed Au single atoms in Au1Ag NPs effectively promote the dissociation of O2 and H2O, facilitating the activation of CH4 to form C2H6. Electron-deficient Au single atoms also aid in the migration of electron donor from ZnO to Au1Ag NPs, leading to the coupling of *CH3 on Ag atoms of Au1Ag NPs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Huimin Xu, Xiaoqiang Wang, Yaoyu Zhang, Le Shi, Xuanhao Wu, Yue Liu, Zhongbiao Wu
Summary: The use of iridium nanoclusters deposited on TiO2 for the reduction of NO2- to ammonia shows high selectivity and production rate, making it a promising method for the purification of NO2- wastewater and recovery of ammonia resources. The competitive adsorption mechanism between H-2 and NO2- on iridium leads to interesting non-first-order NO2- hydrogenation kinetics. The NRA pathways on the Ir(111) surface were explored, providing mechanistic insights for wet denitrification waste stream decontamination and valorization.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yaoyu Zhang, Yuxiong Wang, Yue Liu, Ling Zhou, Huimin Xu, Zhongbiao Wu
Summary: This study proposed a universal strategy for the purification of nitrile waste gas and simultaneous generation of NH3. A silver single-atom-doped ceria nanorod was used for selective catalytic oxidation of the waste gas, resulting in near complete mineralization and high NH3 yield. The introduction of the silver single atom promoted water activation and accelerated the hydrolysis reaction of nitrile to generate NH3.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yuxiong Wang, Yaoyu Zhang, Yue Liu, Zhongbiao Wu
Summary: In this study, the Ag3PO4-ZnO heterostructure photocatalyst was successfully synthesized for photocatalytic oxidative coupling of methane. The catalyst exhibited excellent C2H6 yield and remarkable apparent quantum yield, surpassing state-of-the-art photocatalytic systems. The research provides insights for the design of catalysts and reaction systems in photocatalytic methane conversion.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Meiling Chen, Mengjie Yin, Yuetan Su, Ruizhe Li, Kezhou Liu, Zhongbiao Wu, Xiaole Weng
Summary: This study explores the photochemical conversion of chlorobenzene (CB), an important class of chlorinated volatile organic compounds (CVOCs), on mineral a-Fe2O3 particulates under atmospheric relevant conditions. It is found that CB can be significantly degraded by a-Fe2O3 under light irradiation, but the reaction is suppressed by the addition of SO2 or NO2 due to competitive adsorption and surface acidification. Additionally, CB can ultimately be converted into polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) under dark or light conditions, providing a possible origin of atmospheric PCDD/Fs from this overlooked photochemical source.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yanbing Cao, Xiaoqi Fei, Xuanhao Wu, Haiqiang Wang, Zhongbiao Wu
Summary: The adsorption characteristics of dichloromethane (DCM), toluene (MB), and ethyl acetate (EAC) vapors on hypercrosslinked polymeric resin (NDA-88) were studied. It was found that NDA-88 is suitable for treating binary vapor systems of DCM mixed with low concentrations of MB/EAC. The presence of water steam shortened the penetration times of DCM, EAC, and MB.
Article
Chemistry, Multidisciplinary
Yemin Zhao, Chao Xi, Shan Gao, Yuejun Wang, Haiqiang Wang, Pengfei Sun, Zhongbiao Wu
Summary: A series of Ru catalysts supported on inexpensive carriers were prepared for the elimination of CVOCs. The monolithic catalyst supported on anatase TiO2 carrier with acidic sites showed the desired catalytic activity for DCM oxidation. The addition of pseudo-boehmite sol as a binder improved the adhesion between the powder catalysts and cordierite honeycomb carrier, and also improved the coating weight loss of the catalyst.
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)
