4 documents found, page 1 of 1
Sulfur and phosphorus co-doped FeCoNiCrMn high-entropy alloys as efficient sulf...
Yu, Zhipeng; Boukhvalov, Danil W.; Tan, Hao; Xiong, Dehua; Feng, Chuangshi; Wang, Jingwei; Wang, Wei; Zhao, Yang; Xu, Kaiyang; Su, Weifeng; Xiang, XinyiSeawater electrolysis (SWE) represents a promising approach to green hydrogen (H2) production but currently faces substantial challenges such as the interference of chlorine chemistry and high energy consumption. In this work, we demonstrate that by replacing the energy-demanding oxygen evolution reaction (OER) with the sulfion oxidation reaction (SOR) and by implementing the concept of bipolar membrane (BPM) e...
Highly-ordered silicon nanowire arrays for photoelectrochemical hydrogen evolut...
Thalluri, Sitaramanjaneya Mouli; Borme, Jerome; Xiong, Dehua; Xu, Junyuan; Li, Wei; Amorim, Isilda; Alpuim, P.; Gaspar, Joao; Fonseca, HelderVertically-aligned, highly-ordered silicon nanowire (SiNW) array photocathodes are fabricated employing e-beam lithography followed by deep reactive ion etching (DRIE) of Si. The effect of structural parameters of SiNWs, including wire diameter, length and inter-wire spacing, on their photoelectrocatalytic hydrogen evolution performance has been systematically investigated. Within the range of dimensions under ...
Vapor–solid synthesis of monolithic single-crystalline CoP nanowire electrodes ...
Li, Wei; Gao, Xuefei; Xiong, Dehua; Xia, Fang; Liu, Jian; Song, Wei-Guo; Xu, Junyuan; Thalluri, Sitaramanjaneya Mouli; Cerqueira, M. F.; Fu, XiuliElectrochemical water splitting into hydrogen and oxygen is a promising technology for sustainable energy storage. The development of earth-abundant transition metal phosphides (TMPs) to catalyze the hydrogen evolution reaction (HER) and TMP-derived oxy-hydroxides to catalyze the oxygen evolution reaction (OER) has recently drawn considerable attention. However, most monolithically integrated metal phosphide el...
Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient...
Xiong, Dehua; Zhang, Qingqing; Li, Wei; Li, Junjie; Fu, Xiuli; Cerqueira, M. F.; Alpuim, P.; Liu, LifengUltrafine molybdenum sulfide (MoS2) nanocrystals are grown on a porous cobalt (Co) foam current collector by atomic layer deposition (ALD) using molybdenum hexacarbonyl and hydrogen sulfide as precursors. When used to catalyze the oxygen evolution reaction (OER), the optimal Co@MoS2 electrode, even with a MoS2 loading as small as 0.06 mg cm-2, exhibits a large cathodic shift of ca. 200 mV in the onset potential...