Results 101 to 110 of about 33,624 (262)

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

Advanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu, Xi Zheng, Xiufan Liu, Tengyuan Gao, Nicola Pinna, Yu Wang   +5 more
wiley   +1 more source

Experimental research on the formation of mineral-rich areas in residue gold placer deposits

E3S Web of Conferences, 2018
Underestimation of the reserves of raw material base of gold mining (namely residue dump complexes) leads to negative social and economic consequences in the regions engaged in placer gold mining. Nonetheless, their efficient development is possible only
Alexeev Vladimir, Banshchikova Tamara
doaj   +1 more source

Kandungan Emas Lebih Tinggi dalam Sedimen Fraksi Kasar Daripada Fraksi Halus di Perairan Bayah - Propinsi Banten Akibat Kondisi Pengendapan Terbuka Samudera Hindia [PDF]

, 2008
Emas letakan dasar laut maupun pantai Perairan Bayah terdapat dalam pasir, pasir sedikit kerikilan, pasir kerikilan, pasir lumpuran, lumpur pasiran, pasir lumpuran sedikit kerikilan dan lumpur pasiran sedikit kerikilan.
Kurnio, H. (Hananto), Purwanto, C. (Catur)   +1 more
core  

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Glacial Erosion Drives High Summer Mercury Exports from the Yukon River, Canada. [PDF]

Environ Sci Technol Lett, 2023
Staniszewska KJ, Reyes AV, Cooke CA.
europepmc   +1 more source

Copper mineral occurrences in the Wrangell Mountains-Prince William Sound area, Alaska [PDF]

, 1971
On January 9, 1970, the U.S. Bureau of Mines entered into an agreement with the University of Alaska based upon a proposal submitted by the Mineral Industry Research Laboratory.
Grybeck, D.G., Heiner, L.E., Wolff, E.N.
core  

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Mineralogical and Geochemical Characteristics of Placer and Ore Gold in the Upper Reaches of the Amazar River (Mogochinsky Gold Mining District, Eastern Transbaikalia)

Georesursy
A detailed study of gold from placers and eluvium of the ore zones of the Amazarkan deposit, located in the basin of the three upper tributaries of the Amazar River, was carried out. The placers are not very far from the primary sources.
V. V. Kolpakov, P. A. Nevolko, D. E. Dranishnikova   +2 more
doaj   +1 more source

Magnetometer and direct-current resistivity studies in Alaska [PDF]

, 1941
During the past year and a half, the territorial Department of Mines in Alaska has conducted a modest experimental program for the purpose of determining the extent to which magnetic and resistivity methods can be used in interior Alaska in connection ...
Joesting, Henry R.
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