Results 101 to 110 of about 108,847 (296)

Multilayer Casting Strategy for Enhanced Cation Contamination Resistance in Proton Exchange Membranes

Electron
The proton exchange membrane (PEM) is critical for the operation of proton exchange membrane fuel cells (PEMFCs). However, cationic impurities (e.g., Ca2+ and Mg2+) in water or the environment readily bind to the PEM's sulfonic acid groups (−SO3H ...
Haodong Xie, Yunfa Dong, Shijie Zhong, Yupei Han, Quan Li, Jiecai Han, Weidong He   +6 more
doaj   +1 more source

Novel composite Nafion membranes modified with copper phthalocyanine tetrasulfonic acid tetrasodium salt for fuel cell application

Journal of Materiomics, 2019
In this paper, Nafion membrane was firstly modified by copper phthalocyanine tetrasulfonic acid tetrasodium salt (CuTSPc) to prepare the Nafion/CuTSPc-x composite membranes.
Yanan Wei, Tianhua Qian, Jiawen Liu, Xaojing Guo, Qiaojuan Gong, Zhaorong Liu, Binglun Tian, Jinli Qiao   +7 more
doaj   +1 more source

Self-sustainable protonic ceramic electrochemical cells using a triple conducting electrode for hydrogen and power production. [PDF]

, 2020
The protonic ceramic electrochemical cell (PCEC) is an emerging and attractive technology that converts energy between power and hydrogen using solid oxide proton conductors at intermediate temperatures.
Bian, Wenjuan, Ding, Dong, Ding, Hanping, Ding, Yong, Hu, Boxun, Jiang, Chao, Orme, Christopher J, Singh, Prabhakar, Wang, Lucun, Wu, Wei, Zhang, Yunya   +10 more
core   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

An effective strategy to enhance phosphoric acid retention and proton conductivity stability: Construction of proton transfer channels with starch rather than H3PO4

Polymer Testing
To enhance the phosphoric acid (PA) retention as well as maintain high proton conductivity of phosphoric acid doped proton exchange membranes at high temperature, we successfully design a series of phosphoric acid doped biobased composite membranes by ...
Xiuping Li, Jiyuan Zhang, Xiao Zhang, Xiudong Liu, Shuhua Chen, Yue Qiao, Qian Li, Cheng Liu   +7 more
doaj   +1 more source

Tunable crystal structure and proton conductivity of lanthanide nitrilotrismethylphosphonates [PDF]

, 2018
Metal phosphonates are multifunctional solids with remarkable stability and proton conducting properties owing to their structure is usually composed of extended hydrogen-bond networks that favor proton transfer pathways [1]. Moreover, these properties
Bazaga García, Montse, Cabeza-Diaz, Aurelio, Hix, Gary B., Olivera-Pastor, Pascual, Pérez Colodrero, Rosario Mercedes, Ramirez-Losilla, Enrique, Ruiz Salcedo, Inés   +6 more
core  

Reaction rates and transport in neutron stars

, 2018
Understanding signals from neutron stars requires knowledge about the transport inside the star. We review the transport properties and the underlying reaction rates of dense hadronic and quark matter in the crust and the core of neutron stars and point ...
A Bransgrove, A Carbone, A Dehghan Niri, A Deibel, A Kurkela, A Passamonti, A Reisenegger, A Reisenegger, A Schmitt, A Schwenk, A Sedrakian, A Sedrakian, A. Akmal, AB Migdal, AB Migdal, AD Kaminker, AD Kaminker, AD Sedrakian, AI Chugunov, AI Chugunov, AI Chugunov, AI Chugunov, AJ Leggett, AJ Leggett, Alexander Haber, AM Beloborodov, AM Bykov, AM Rosenfeld, AMJ Schaeffer, AR Zhitnitsky, AY Potekhin, AY Potekhin, AY Potekhin, AY Potekhin, AY Potekhin, AY Potekhin, AY Potekhin, AY Potekhin, AY Potekhin, B Friman, B Haskell, B Haskell, B Posselt, BL Friman, BM Askerov, BP Abbott, Brynmor Haskell, C Eckart, C Manuel, C Manuel, C Petrovich, Christof Gattringer, CJ Horowitz, CJ Horowitz, CJ Pethick, CO Heinke, Cristina Manuel, D Bailin, D Blaschke, D Blaschke, D Burnett, D Burnett, D Jaccarino, D Mateos, D N Aguilera, D Page, D Page, D Page, D Page, D Viganò, D Vollhardt, DA Baiko, DA Baiko, DA Baiko, DA Baiko, DA Baiko, DA Shalybkov, DA Young, DD Ofengeim, DE Kharzeev, DG Ravenhall, DG Yakovlev, DG Yakovlev, DG Yakovlev, DG Yakovlev, DG Yakovlev, DG Yakovlev, DG Yakovlev, DG Yakovlev, DK Berry, DN Voskresensky, DT Son, DT Son, E Flowers, E Flowers, E Flowers, EE Kolomeitsev, EF Brown, EF Brown, EM Cackett, F Castillo, F Wilczek, FE Low, G Aarts, G Baym, G Baym, G Baym, G Chabrier, GA Brooker, GE Tauber, Gilberto Medeiros Kremer, GS Bisnovatyi-Kogan, GV Vereshchagin, H Heiselberg, H Heiselberg, H Højgård Jensen, H Reinholz, H Schatz, H Schatz, Igor A Shovkovy, IM Khalatnikov, J Boguta, J Carlson, J Chao, J Charbonneau, J Charbonneau, J Daligault, J Hoyos, J Madsen, J Madsen, J Sykes, J Wambach, JA Pons, JA Pons, JD Anand, JE Kim, JF Pérez-Azorín, JG Elfritz, JL Friedman, JM Dong, JM Lattimer, JM Ziman, JM Ziman, K Glampedakis, K Glampedakis, K Glampedakis, K Landsteiner, KG Balasi, KG Elshamouty, KS Thorne, L García-Colín, L Hernquist, L Landau, L Tisza, L Tolos, L Villain, LD Landau, LD Landau, LO Juri, M Delehaye, M Dine, M Greiter, M Hashimoto, M Iwasaki, M Iwasaki, M Kutschera, M Kutschera, M Kutschera, M Kutschera, M Mannarelli, M Wiescher, MA Shahzamanian, MA Shifman, MA Stephanov, MD Jones, ME Caplan, ME Gusakov, ME Gusakov, MG Alford, MG Alford, MG Alford, MG Alford, MG Alford, MG Alford, MG Alford, MG Alford, MG Alford, MV Beznogov, MV Beznogov, N Andersson, N Andersson, N Chamel, N Chamel, N Chamel, N Chamel, N Degenaar, N González-Jiménez, N Itoh, N Iwamoto, N Iwamoto, N Iwamoto, N Iwamoto, O Benhar, Omar Benhar, OV Maxwell, OY Gnedin, P Goldreich, P Haensel, P Haensel, P Haensel, P Haensel, P Haensel, P Haensel, P Haensel, P Kovtun, P Shternin, PAUL ROMATSCHKE, Pavel Kovtun, PB Jones, PI Arseev, PS Shternin, PS Shternin, PS Shternin, PS Shternin, PS Shternin, PS Shternin, Q D Wang, Q Li, R Anglani, R Mckinven, R Nandi, R Schmidt, R Turolla, RD Peccei, RF Sawyer, RF Sawyer, RG Timmermans, RH Anderson, RJ Donnelly, RN Manchester, Robert C Myers, S Cassisi, S Chapman, S Flores-Tulián, S Gupta, S Hannestad, S Weinberg, SC Huot, SH Lam, SI Braginskii, SL Adler, SL Shapiro, SS Gupta, T Hatsuda, T Noda, T Schäfer, TH Burnett, V Graber, V Zhdanov, Vanessa Graber, VP Silin, W Israel, W Zuo, W-B Ding, WA Harrison, WH Dickhoff, Wolfgang Keil, Y Li, Y Li, Y. Aoki   +269 more
core   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Pressure-induced amorphization of a dense coordination polymer and its impact on proton conductivity

APL Materials, 2014
The proton conductivity of a dense coordination polymer (CP) was investigated under high-pressure conditions. Impedance measurements under high pressures revealed that the proton conductivity of the CP decreased more than 1000-fold at pressures of 3–7 ...
Daiki Umeyama, Satoshi Horike, Cedric Tassel, Hiroshi Kageyama, Yuji Higo, Keisuke Hagi, Naoki Ogiwara, Susumu Kitagawa   +7 more
doaj   +1 more source