2018年8月1日 · Earth-abundant transition metal sulfide eletrocatalysts for oxygen evolution reaction (OER) with compelling catalytic performance hold a key to clean and renewable energy conversion. Herein, we report a one-step solvothermal method to synthesize iron-doped cobalt sulfide (CoFeS) nanoplates.

2021年11月15日 · Co-NC@CoFeS 2 electrocatalyst featuring highly porous and hollow architecture is successfully synthesized by the controllable in-situ growing of CoFeS 2 on ZIF-67 derived polyhedron Co-NC substrate. The Co-NC@CoFeS 2 shows excellent bi-functional performance for ORR and OER.

21 小时之前 · XPS was utilized to analyze the elemental valence and composition of PDA@CoFeS 2. As displayed in Fig. 10 a, the wide XPS survey spectra confirmed the presence of C, N, O, Co, Fe and S elements in fresh and used PDA@CoFeS 2 , suggesting that the chemical composition of PDA@CoFeS 2 was unchanged before and after the reaction.

2024年9月1日 · In-situ dynamic reconstruction strategy is developed to construct a heterogeneous FeS@NiS hybrid by cationic Co doping via surface-structure engineering, where the CoFeS@CoNiS is quickly reconstructed to Ni (Co)Fe 2 O 4 and further reconstituted to Ni/Co/FeOOH during the charging/discharging process, …

通过对经历her测试后的催化剂进行xps表征，可以发现催化剂表面的钴铁价态发生了变化，最明显的变化在于出现了0价金属。 而XRD表征也可观察到归属于磷化钴的特征峰（见原文SI）。

2024年2月26日 · Herein, we propose an unconventional Co-Fe dual-site segmentally synergistic mechanism (DSSM) for single-domain ferromagnetic catalyst CoFeS x nanoclusters on carbon nanotubes (CNT)...

在水热制备 cofe-ldh 前体后，通过在 120 °c 下用硫代乙酰胺水热硫化或在 400 °c 下用次磷酸钠磷化来生产 cofes 和 cofep-400 催化剂。采用xrd、hr-tem、sem、bet、xps、n 2物理吸附等技术对催化剂进行表征，探究其形貌、结构、化学组成和物理化学性质。

2022年3月16日 · Herein, we report a novel synthesis route to prepare core–shell CoFeS 2 @CoS 2 nanocubes entangled with carbon nanotubes via a hydrothermal method, followed by post-annealing under a reducing atmosphere.

XPS和对废CoFe-LDH的光谱分析证明了H 2 小号去除通过两个反应流程进行：形成的中间HS - 从解离ħ 2 S的最后与金属表面上的氢氧化取代; 和形成HS - 通过在层间碳酸抗衡离子。 经过H 2 S处理后，形成了以气态产物形式形成CO 2 以及以CoFeS 2 和CoFeSO 4 作为固态产物。 环保应用表明，所制备的CoFe-LDH在高湿度（90％相对湿度（RH））下更有效在室温下），甚至在高浓度的H 2 S源（3333 ppm）下。

2024年1月24日 · In this study, cobalt–iron hydrotalcite-based catalysts doped with sulfur or phosphorus were developed for the selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). Following the hydrothermal preparation of a CoFe-LDH precursor, CoFeS and CoFeP-400 catalysts were produced