Article
Chemistry, Multidisciplinary
A. Ramesh, M. Jeyavelan, J. A. Alex Rajju Balan, O. N. Srivastava, M. Sterlin Leo Hudson
Summary: This paper discusses the electrochemical energy storage and gas adsorption performance of commercial nanoporous activated carbon. The results show that the sample exhibits high specific capacitance and low capacitance loss.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Juan Rogelio Tena-Garcia, Alejandro Casillas-Ramirez, Ricardo Guerrero-Ortiz, David Ricardo Poire de la Cruz, Karina Suarez-Alcantara
Summary: The dehydrogenation temperature of LiAlH4 can be significantly reduced by producing mixtures with ZrCl4 through ball milling at low temperatures. This method allows for efficient hydrogen release by achieving small aggregate size and preventing substantial decomposition. However, the LiAlH4/ZrCl4 mixtures are unstable and difficult to handle. The dehydrogenation pathway is changed in the mixtures, resulting in the formation of Al, LiCl, Zr, and H2 as the main products.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Jaideep Mor, Pranav Utpalla, Ravi Kumar, Jitendra Bahadur, Sandeep Kumar Sharma
Summary: ZIF-L is transformed to ZIF-8 through a topotactic phase transformation driven by the removal of hydrogen-bonded linker molecules. Crystalline particles form within the first minute, and leaf-like structures complete their growth within 10 minutes. During the transformation, ZIF-L particles are cleaved and transformed into 3D ZIF-8 nanocrystals.
CHEMISTRY OF MATERIALS
(2023)
Article
Energy & Fuels
A. Ariharan, K. Ramesh, R. Vinayagamoorthi, M. Sandhya Rani, B. Viswanathan, S. Ramaprabhu, V Nandhakumar
Summary: A facile method of self-phosphorous doped porous carbon has been developed without using any activation process, showing high H-2 storage capacity and specific capacitance. The carbon material exhibits excellent cyclic stability and shows potential for industrial applications.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Giuseppe Conte, Alfonso Policicchio, Oreste De Luca, Petra Rudolf, Giovanni Desiderio, Raffaele G. Agostino
Summary: The transition to a carbon-neutral energy sector requires the development of new storage materials for hydrogen and methane as well as new solutions for carbon capture and storage. Activated carbons, with their high specific surface area and other favorable properties, are considered promising adsorbents for these purposes. This study focuses on the synthesis and characterization of activated carbons starting from amorphous cellulose, with and without the inclusion of copper nanoparticles, and investigates the effects of different nanoparticle concentrations on porosity and gas storage properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Syedvali Pinjari, Tapan Bera, G. S. Kapur, Erik Kjeang
Summary: The effect of acid functionalization of multiwalled carbon nanotubes (MWCNTs) on hydrogen storage at room temperature was investigated. Functionalized CNT samples were synthesized and characterized, and hydrogen storage measurements were conducted. Acid functionalization led to significant changes in the physicochemical properties of the CNTs due to varying oxygen functional group concentrations. The H2SO4:HNO3 functionalized sample at 100 degrees C showed the highest interlayer spacing, oxygen to carbon ratio, defect content, and specific surface area. These features contributed to a substantial improvement in hydrogen storage capacity, with a 150% increase at 298 K and 50 bar. Kinetic analysis revealed a multiple diffusion process for desorption, controlled by oxygen functional groups and structural defects, while adsorption followed a more rapid, three-dimensional diffusion process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Pawel Baran, Bronislaw Buczek, Katarzyna Zarebska
Summary: Experimental results show that active carbon modified with potassium hydroxide exhibits a significantly increased capacity for hydrogen adsorption at low temperatures, with the adsorbed volume nearly four times higher than before modification.
Article
Chemistry, Multidisciplinary
Egert Moller, Rasmus Palm, Kenneth Tuul, Meelis Harmas, Miriam Koppel, Jaan Aruvali, Marian Kulaviir, Enn Lust
Summary: This study synthesized highly ultramicroporous carbon materials by chemically activating peat with low concentrations of ZnCl2, resulting in high micropore ratios and efficient hydrogen adsorption under low-pressure conditions.
Article
Chemistry, Physical
F. J. Antiqueira, D. R. Leiva, G. Zepon, W. J. Botta
Summary: In recent studies, it was found that high energy ball milling of Mg/MgH2 mixed with additives can reduce the temperature for H-2 absorption/desorption without altering thermodynamic properties. This research aimed to identify efficient hydrogen absorption/desorption catalysts at low temperatures, particularly at room temperature (RT). Among the additives tested in this study, MgH2-TiFe mixture showed the best performance, attributed to the strong catalytic action of TiFe and the high energy interfaces attracting hydrogen gas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Nur Syazwani Che Mazlan, Muhammad Firdaus Asyraf Abdul Halim Yap, Mohammad Ismail, Muhammad Syarifuddin Yahya, Nurul Amirah Ali, Noratiqah Sazelee, Yew Been Seok
Summary: It is reported that the addition of activated carbon (AC) improves the hydrogen storage ability of ball-milled lithium alanate (LiAlH4). LiAlH4-10 wt.% AC composite exhibits lower onset decomposition temperature, enhanced desorption kinetics, and higher hydrogen release compared to as-received and as-milled LiAlH4. The presence of Li3AlH6 and carbon bonding in the LiAlH4-10 wt.% AC composite is verified by XRD and FTIR measurements.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Gabriela Zelenkova, Tomas Zelenka, Miroslav Almasi, Michala Soldanova
Summary: This study investigated the synthesis of hierarchically porous carbon monoliths doped with graphene oxide for H-2 and CO2 sorption applications. By adjusting the synthesis procedure and carbonization temperature, the degree of reduction of graphene oxide and its incorporation into the matrix were characterized. The addition of 10% graphene oxide at a pyrolysis temperature of 900 degrees C resulted in a promising material with high adsorption capacities for H-2 and CO2.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Nanoscience & Nanotechnology
Hao Sun, Lulu Zhou, Ruoqu Gong, Man Zhang, Shen Shen, Mouwei Liu, Cisong Wang, Xiaoyan Xu, Zhongyu Li, Jianshuo Cheng, Wenbo Chen, Liangliang Zhu
Summary: We developed a novel strategy to achieve multiple stimuli-responsive phosphorescent activation on a single carbon-dot system by introducing aromatic carbonyl groups and multiple S atoms. This strategy enables the activation of the phosphorescent property by light, acid, and thermal stimuli, leading to tunable and multistimuli-responsive phosphorescence.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Fatma Oguz Erdogan, Cenk Celik, Anil Can Turkmen, Ali Enis Sadak, Evren Cucu
Summary: Novel zeolite/carbon composites were synthesized to determine their hydrogen storage properties, with activated carbon, graphene, and multi-walled carbon nanotubes used as carbon sources. The activated carbon exhibited high BET surface area, total pore volume, and micropore volume. In hydrogen sorption tests, the zeolite/activated carbon composite showed a hydrogen storage capacity of 1.3 wt%. Thus, ZAC is a promising adsorbent for hydrogen storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Zhonghao Wang, Yan Zheng, Yan Su, Liang Gao, Yinyin Zhu, Jie Xia, Yongfeng Zhang, Chang Wang, Xian Zheng, Yanli Zhao, Chaolong Yang, Youbing Li
Summary: By doping organic chromophore molecules into polymer matrix, dynamic stimulus-responsive long-lived RTP systems with various emission colors are achieved. The phosphorescence intensity, lifetime, afterglow brightness, and quantum yield of one representative film increase dramatically after UV light irradiation.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ren Zou, Jialing Li, Jirong Cui, Weijin Zhang, Gangtie Lei, Hujun Cao, Ping Chen
Summary: An organic solvent-assisted catalyst-free mechanochemical reaction is developed for synthesizing lithium hydride under mild gas pressures and room temperature. The formation of intermediates on the surface of bulk lithium metal is found crucial for achieving high purity (>98%) LiH synthesis. This provides a new strategy for large-scale production of lithium-based hydrogen storage materials.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)