Biaxially strained MoS₂ nanoshells with controllable layers boost alkaline hydrogen evolution by Zhang, Tao, Liu, Yipu, Yu, Jie, Ye, Qitong, Yang, Liang, Li, Yue, Fan, Hong Jin

“…In particular, an electrode with the bilayer MoS2 nanoshells shows a remarkable hydrogen evolution reaction activity with a small overpotential of 78.1 mV at 10 mA cm-2 , and negligible activity degradation after durability testing. …”
Get full text

Red blood cell extracellular vesicles incorporated into 3D printed scaffolds for spinal cord injury regeneration by Huang, Chongquan, Jayasinghe, Migara Kavishka, Lau, Kieran, Thi Nguyet Minh Le, Chew, Sing Yian

“…Thereafter, the RNA-loaded RBCEVs were incorporated into gelatin meth acryloyl (GelMA) solution for 3D printing, which could permit physical support and guidance for neural regeneration and act as a reservoir for gene materials.…”
Get full text
Get full text

Supramolecular macrocycle regulated single-atom MoS2@Co catalysts for enhanced oxygen evolution reaction by Cao, Shuai, Wu, Wenzhuo, Liu, Chaozhong, Song, Leqian, Xu, Qun, Zhang, Huuacheng, Zhao, Yanli

“…Theoretical calculations indicate that immsobilized single-Co sites exhibit an optimized adsorption capability of oxygen-containing intermediates, endowing the catalyst an excellent electrocatalytic oxygen evolution reaction activity, with a low overpotential of 370 mV at 10 mA cm−2 and a small Tafel slope of 90 mV dec−1. …”
Get full text

Biaxial strain induced OH engineer for accelerating alkaline hydrogen evolution by Zhang, Tao, Ye, Qitong, Han, Zengyu, Liu, Qingyi, Liu, Yipu, Wu, Dongshuang, Fan, Hong Jin

“…Here, we develop biaxially strained MoSe2 three dimensional nanoshells that exhibit enhanced catalytic performance with a low overpotential of 58.2 mV at 10 mA cm−2 in base, and long-term stable activity in membrane-electrode-assembly based electrolyser at 1 A cm−2. …”
Get full text

Pressure-Dependent Polymorphism and Band-Gap Tuning of Methylammonium Lead Iodide Perovskite by Jiang, Shaojie, Fang, Yanan, Li, Ruipeng, Xiao, Hai, Crowley, Jason, Wang, Chenyu, White, Timothy John, Goddard III, William A., Wang, Zhongwu, Baikie, Tom, Fang, Jiye

“…We report the pressure-induced crystallographic transitions and optical behavior of MAPbI3 (MA=methylammonium) using in situ synchrotron X-ray diffraction and laser-excited photoluminescence spectroscopy, supported by density functional theory (DFT) calculations using the hybrid functional B3PW91 with spin-orbit coupling. …”
Get full text
Get full text

Crystal phase and architecture engineering of lotus thalamus-shaped Pt-Ni anisotropic superstructures for highly efficient electrochemical hydrogen evolution by Zhang, Zhicheng, Liu, Guigao, Cui, Xiaoya, Chen, Bo, Zhu, Yihan, Gong, Yue, Saleem, Faisal, Xi, Shibo, Du, Yonghua, Borgna, Armando, Lai, Zhuangchai, Zhang, Qinghua, Li, Bing, Zong, Yun, Han, Yu, Gu, Lin, Zhang, Hua

“…The obtained overpotential is as low as 27.7 mV at current density of 10 mA cm−2, and the turnover frequency reaches 18.63 H2 s−1 at the overpotential of 50 mV. …”
Get full text
Get full text

Charging mechanism of Li2MnO3 by Guerrini, N, Jin, L, Lozano, JG, Luo, K, Sobkowiak, A, Tsuruta, K, Massel, F, Duda, L-C, Roberts, MR, Bruce, PG

“…CO2 and O2 are detected on charging at 15 mA g–1, whereas charging by galvanostatic intermittent titration technique (GITT) forms only CO2; an observation in agreement with the previously described model of oxygen evolution from high-voltage cathodes producing singlet O2 that reacts with the electrolyte forming CO2. …”

Supporting Bystanders: See Something, Say Something Is Not Enough by Rowe, Mary

Get full text

Systematic assessment of COVID-19 host genetics using whole genome sequencing data by Schmidt, A, Casadei, N, Brand, F, Demidov, G, Vojgani, E, Abolhassani, A, Aldisi, R, Butler-Laporte, G, DeCOI host genetics group, Alawathurage, TM, Augustin, M, Bals, R, Bellinghausen, C, Berger, MM, Bitzer, M, Bode, C, Boos, J, Brenner, T, Cornely, OA, Eggermann, T, Erber, J, Feldt, T, Fuchsberger, C, Gagneur, J

“…Here, we present the results of whole genome sequencing in 1,220 mainly vaccine-naïve individuals with confirmed SARS-CoV-2 infection, including 827 hospitalized COVID-19 cases. …”

Silver and lead telluride based thermoelectric nanostructured materials by Zhou, Wenwen

Get full text

Investigation of protocol design for molecular communication nanonetworks by Liu, Dong

Get full text

Design of a fouling detection system by Liu, Zhi

Get full text

Singapore’s ’30 by 30’ Strategy : Can Food Self-Production Be Achieved? by Teng, Paul, Montesclaros, Jose Ma. Luis P.

Get full text
Get full text

Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells by Cuzzupè, Daniele T., Öz, Senol Dilara, Ling, Jinkiong, Illing, Elias, Seewald, Tobias, Jose, Rajan, Olthof, Selina, Azhar, Fakharuddin, Schmidt-Mende, Lukas

“…X-ray photoelectron spectroscopy confirms the presence of Cl on the surface, but no indication of MA+ is found. Intriguingly, UV photoelectron spectroscopy shows pronounced changes in the density of states. …”
Get full text
Get full text

Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis by Duan, Xinxuan, Sha, Qihao, Li, Pengsong, Li, Tianshui, Yang, Guotao, Liu, Wei, Yu, Ende, Zhou, Daojin, Fang, Jinjie, Chen, Wenxing, Chen, Yizhen, Zheng, Lirong, Liao, Jiangwen, Wang, Zeyu, Li, Yaping, Yang, Hongbin, Zhang, Guoxin, Zhuang, Zhongbin, Hung, Sung-Fu, Jing, Changfei, Luo, Jun, Bai, Lu, Dong, Juncai, Xiao, Hai, Liu, Wen, Kuang, Yun, Liu, Bin, Sun, Xiaoming

“…The Ir/CoFe-LDH exhibits a remarkable oxygen evolution reaction activity (202 mV overpotential and TOF = 7.46 O2 s-1) in 6 M NaOH+2.8 M NaCl, superior over Cl--free 6 M NaOH electrolyte (236 mV overpotential and TOF = 1.05 O2 s-1), with 100% catalytic selectivity and stability at high current densities (400-800 mA cm-2) for more than 1,000 h.…”
Get full text

Self-configurable memetic algorithm by Le, Minh Nghia

“…To date, most successful advanced stochastic optimization algorithms involve some forms of individual learning or meme in their design. Memetic Algorithm (MA), as a form of hybridization between population-based and individual-based searches, represents one of the recent growing areas in evolutionary algorithm research. …”
Get full text

Power-stage design for switched- mode DC-DC converter by Lim, Yong Siah

“…Simulation results at 5 MHz, 1.65 V output voltage, and 280mA output current show that our design achieves a 3% power-efficiency improvement as compared to that of a conventional full-swing method (with the same optimum tapering factor and the optimum sizing method). …”
Get full text

Facile synthesis of a hole transporting material with a silafluorene core for efficient mesoscopic CH3NH3PbI3 perovskite solar cells by Krishna, Anurag, Sabba, Dharani, Yin, Jun, Bruno, Annalisa, Antila, Liisa J., Soci, Cesare, Mhaisalkar, Subodh, Grimsdale, Andrew Clive

“…When S101 was incorporated into a CH3NH3PbI3 perovskite solar cell as a hole transporting material (HTM), a short circuit photocurrent density (Jsc) of 18.9 mA cm−2, an open circuit voltage (Voc) of 0.92 V, and a fill factor (FF) of 0.65 contributing to an overall power conversion efficiency (PCE) of ∼11% which is comparable to the PCE obtained using the current state-of-the-art HTM 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) (η = 12.3%) were obtained. …”
Get full text
Get full text

An analytic approach for optimal geometrical design of GaAs nanowires for maximal light harvesting in photovoltaic cells by Wu, Dan, Tang, Xiaohong, Wang, Kai, Li, Xianqiang

“…Using photocurrent density as the light absorbing evaluation standard, 2 μm length NW arrays whose multiple diameters and periodicity are quantitatively identified achieving the maximal value of 29.88 mA/cm2 under solar illumination. It also turns out that our method has wide suitability for single, double and four different diameters of NW arrays for highest photon energy harvesting. …”
Get full text
Get full text

Adaptive gate switching control for discontinuous conduction mode DC–DC converter by Sun, Zhuochao, Chew, Kin Wai Roy, Tang, Howard, Siek, Liter

“…The experimental results demonstrate precise control of the gate switching operations, and the boost converter at 1.2-V/2.5-V nominal input/output achieves a peak efficiency of 86% at 30-mA load current.…”
Get full text
Get full text