Results 31 to 40 of about 373 (157)

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

Advanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange, Jinjie Zhu, Angus Pedersen, Joseph Parker, S. Esmael Balaghi, Shaohua Li, Silvia Favero, José Ignacio Martínez, Sarah Haigh, Maria‐Magdalena Titirici, Anna Fischer, Jesús Barrio   +11 more
wiley   +1 more source

Precipitation of Alumina Hydrates and Porous Structure of Their Calcinated Aluminas

The Journal of the Society of Chemical Industry, Japan, 1970
硫酸アルミニウムとアルミン酸ナトリウム水溶液とからアルミナ水和物を沈殿させる場合, 溶液の濃度, pH, 温度などを変化させ, さらに炭酸アンモニウムを添加して, アルミナ水和物を生成した。そしてこれら沈殿条件が水和物を 500℃ で焼成してえられるアルミナの性質におよぼす影響を検討した。アルミナ水和物については,結晶構造および不純物 SO3 含量を, 500℃ 加熱後のアルミナについては, 結晶構造, 結晶子の大きさ, 単位粒子径分布, 表面積および細孔径分布などの測定を行ない, また電子顕微鏡により粒子形状を観察した。その結果, 水和物では沈殿条件によって, 結晶構造および SO3 含量が変わるが, アルミナでは結晶構造, 単位粒子径分布はほとんど変わらず, 細孔構造が著しく変化することを知った。
Shoko YAMADAYA, Takeshi KINOSHITA, Kinya SHIMOMURA, Hiroshi UCHIDA   +3 more
openaire   +2 more sources

Fully Bio‐Based Gelatin Organohydrogels via Enzymatic Crosslinking for Sustainable Soft Strain and Temperature Sensing

Advanced Functional Materials, EarlyView.
Enzymatically crosslinked gelatin‐based organohydrogels, fabricated through a fully bio‐based and scalable process, exhibit exceptional strain and temperature sensing capabilities with minimal interference from environmental humidity. These transparent, stretchable, and ionically conductive materials operate without synthetic fillers or dopants.
Pietro Tordi, Adrián Tamayo, Yeonsu Jeong, Bin Han, Tamer Al Kayal, Aida Cavallo, Massimo Bonini, Paolo Samorì   +7 more
wiley   +1 more source

Unveiling the Potential of Diatomaceous Earth for the Synthesis of Sustainable Geopolymer Binders [PDF]

This study explored the use of natural diatomaceous earth (ND) and brewery waste diatomaceous earth (BWD) as precursors for the synthesis of geopolymeric binders, with a focus on optimizing the developed compositions and analyzing their physico ...
A. P. Luz, B. P. Bezerra, M. R. Morelli, R. S. Magalhães   +3 more
core   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

Accelerating Discovery to Deployment: Argonne's Materials Engineering Research Facility (MERF) and Its Role in Scaling Materials Technologies for Water and Resource Solutions

Advanced Materials Technologies, EarlyView.
In this Perspective, we highlight the processing science and scale‐up capabilities of the Materials Engineering Research Facility (MERF) at the U.S. Department of Energy's Argonne National Laboratory, with an emphasis on practical solutions for sustainable water and critical resource recovery. We demonstrate how national laboratories bridge fundamental
Yuepeng Zhang, Bratin Sengupta, Xiaoao Shi, Haihui Pu, Jeffrey W. Elam, Gregory K. Krumdick, Jessica Durham Macholz, Allison Bennett Irion, Junhong Chen, Seth B. Darling   +9 more
wiley   +1 more source

Study on The Effect of Different Sols on High Alumina Castable Refractory [PDF]

, 2017
Ever-increasing demand and application of unshaped refractories replacing shaped ones have inspired the scientists and manufacturers to investigate these materials in depth for further improving the quality and performance.
Singh, Akhilesh Kr.
core  

Robotic Materials With Bioinspired Microstructures for High Sensitivity and Fast Actuation

Advanced Science, EarlyView.
In the review paper, design rationale and approaches for bioinspired sensors and actuators in robotics applications are presented. These bioinspired microstructure strategies implemented in both can improve the performance in several ways. Also, recent ideas and innovations that embed robotic materials with logic and computation with it are part of the
Sakshi Sakshi, Rohit Pratyush Behera, Hongyu Zhou, Yifan Wang, Hortense Le Ferrand   +4 more
wiley   +1 more source

An Advanced High‐Performance Ultrafast Ammonium‐Ion Aqueous Battery Based on Dual‐Metal Redox Open Framework Molecular Magnet

Advanced Science, EarlyView.
The Prussian Blue Analogue molecular magnet KMnFeHCF is demonstrated as a high‐performance cathode for ultra‐fast aqueous ammonium‐ion batteries. A full cell using KMnFeHCF and graphite delivers ~71 mAh g−1 at 1.25 A g−1 and ~51 mAh g−1 at 2.2 A g−1, retaining 50% capacity after 1850 cycles. Its scalability, cycling stability, and low cost offer strong
Nilasha Maiti, Pramod Bhatt, Manoj K Sharma, Sher Singh Meena, Mayuresh D Mukadam, Soumen Samanta   +5 more
wiley   +1 more source

Hydrated Aluminas Precipitated from Sodium Aluminate Solutions

The Journal of the Society of Chemical Industry, Japan, 1967
アルミン酸ナトリウム溶液の加水分解により生成する種々のアルミナ水和物について,X線,示差熱分析,赤外線分析などにより実験を行なった。アルミナ水和物はNa2O/Al2O3モル比1.6の溶液の温度を0℃ から100℃ まで変化させて,溶液に炭酸ガスを通じて分解したもの,またはモル比を1.2から3.0まで変化させて室温で自発分解によりえられたものである。いずれの場合もハイドラルジライトとバイアライトの二つの生成範囲があり,新しいアルミナ水和物がこの二つの範囲の中間に発見された。この型はFrickeが発見したものと同一と考えられ,著者らはFrickeにしたがってこれをバイアライト(b)と名付けた。炭酸ガス分解の場合,液温0～17℃ では結晶化度の低いバイアライトに似た型がえられた。ただしその(001 ...
Yoshikatsu SHIMIZU, Nariaki MITSUI, Koemon FUNAKI   +2 more
openaire   +2 more sources