Journal of materials chemistry. A, Materials for energy and sustainability
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#1Divyani Gupta (IIT-RPR: Indian Institute of Technology Ropar)H-Index: 1
#2Sudip Chakraborty (Uppsala University)H-Index: 54
Last. Tharamani C. Nagaiah (IIT-RPR: Indian Institute of Technology Ropar)H-Index: 9
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Nitrogen-doped carbon nanotubes (NCNTs) were synthesized by treating HNO3-oxidized carbon nanotubes (CNTs) in NH3 flow at different temperatures. PtRu nanoparticles were decorated over NCNTs. The PtRu catalysts were prepared by an impregnation-reduction method from metal chloride precursors with a total metal loading of about 10 wt%. The electrocatalytic activity with respect to methanol oxidation was studied using electrochemical and scanning electrochemical microscopy (SECM) measurements. The t...
#1Xiao Tan (QUST: Qingdao University of Science and Technology)
#2Xin Liu (QUST: Qingdao University of Science and Technology)H-Index: 8
Last. Guangwen Xie (QUST: Qingdao University of Science and Technology)H-Index: 16
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It is very important to design and prepare low-cost and efficiency electrocatalysts for water splitting in alkaline solution. In this works, Ni-Fe-P and Ni-Fe-P-FeMnO3 electrocatalysts are developed using facile electrodeposition method. Transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) characterizations show that FeMnO3 particles are successfully composited into the Ni-Fe-P amorphous matrix, and the multi-stage nanostructures are obtained to expose more active si...
#1Muhammad Boota (Drexel University)H-Index: 18
#2Euiyeon Jung (Drexel University)
Last. Tanveer Hussain (UWA: University of Western Australia)H-Index: 26
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Conducting polymers (CPs) are by far the most studied organic materials for supercapacitors. Yet, their structural instability stemming from volumetric expansion/contraction during charge/discharge results in capacitance loss after moderate cycling that limits their applications. Here, we show that the remarkable cycling stability, capacitance, and rate performance can be achieved by replacing conventional electrode additives (carbon black or insulating polymer binder) with titanium carbide (Ti3...
Porous membranes with special wetting properties have attracted great interest due to their various functions and wide applications, including water filtration, selective oil/water separation and oil skimming. Special wetting properties such as superhydrophobicity can be achieved by controlling the surface chemistry as well as the surface topography of a substrate. Three-dimensional (3D) printing is a promising method for the fast and easy generation of various structures. The most common method...
#1T. Kavinkumar (Chonnam National University)H-Index: 2
Last. Do-Heyoung Kim (Chonnam National University)H-Index: 30
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The precise design of nanomaterials is a promising approach, but remains a challenge toward the development of highly efficient catalysts in water splitting applications. Herein, a facile three-step process to rationally design advanced NiCo2O4/MoO2@atomic layer deposition (ALD)-NiO heteronanostructure arrays on a nickel foam substrate is reported. By effective interface construction, an electronic structure and coordination environment are created at the interface in the heteronanostructure, wh...
#1Johanna Eichhorn (TUM: Technische Universität München)H-Index: 12
#2Simon P. Lechner (TUM: Technische Universität München)
Last. Ian D. Sharp (TUM: Technische Universität München)H-Index: 49
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The (opto)electronic properties of Ta3N5 photoelectrodes are often dominated by defects, such as oxygen impurities, nitrogen vacancies, and low-valent Ta cations, impeding fundamental studies of its electronic structure, chemical stability, and photocarrier transport. Here, we explore the role of ammonia annealing following direct reactive magnetron sputtering of tantalum nitride thin films, achieving near-ideal stoichiometry, with significantly reduced native defect and oxygen impurity concentr...
#1Jingjing Liu (Forschungszentrum Jülich)
Last. Jun Song (SZU: Shenzhen University)H-Index: 25
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Halide perovskites are widely used as an absorbing or emitting layer in emerging high-performance optoelectronic devices due to their high absorption coefficients, long charge carrier diffusion lengths, low defect density and intense photoluminescence. Si-based materials (c-Si, a-Si, SixNy, SiCx and SiO2) play important roles in high performance perovskite optoelectronic devices due to the dominance of Si-based microelectronics and the important role of Si-based solar cells in photovoltaics. Con...
The separation of alkane/alkene gas mixtures represents an important yet challenging process in petrochemical industry to produce valuable chemical feedstocks with sufficiently high purity. These molecules have similar physical properties, making their separation difficult and capital-intensive. The current separation and purification technology relies largely on heat-driven distillations with a huge unit composed of hundreds of trays. Adsorptive separation using porous solids is capable of acco...
Conjugated molecules have been typically utilized as either hole or electron extraction layers to boost the device-performance of perovskite solar cells (PSCs) by three-dimensional (3D) perovskites due to their high charge carrier mobility and electrical conductivity. However, conjugated molecules functionalize as the passivation role in creating two-dimensional (2D) perovskites was rarely reported. In this study, we report novel conjugated aniline 3-phenyl-2-propen-1-amine (PPA) based 2D perovs...
The development of non-noble metal-based electrocatalysts is of great significance to the wide application of electrocatalytic hydrogen production. However, construction of a highly active surface layer with synergistic sites toward alkaline hydrogen evolution still remains challenging. Herein, a strategy of incomplete amorphous phosphorization at the surface of crystalline cobalt molybdate is proposed to realize the interface engineering of crystalline cobalt molybdate surrounded by the amorpho...
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