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| 1 | Co_9S_8 nanowires@NiCo LDH nanosheets arrays on nickel foams towards efficient overall water splitting显示文摘Water electrolysis is considered to be an effective way to fabricate hydrogen, and it is desirable to find the highly efficient, inexpensive and good durability bifunctional electrocatalysts for overall water splitting.In this paper, we synthesis a unique structured catalyst that was composed by Co_9S_8 nanowires and nickel cobalt layered double hydroxide(NiCo-LDH) nanosheets. The ultrathin nanosheets decorated on the Co_9S_8 nanoarrays offer large specific surface area, numerous active edge sites and excellent electrical conductivity for fast electron transfer. Benefiting from this heterogeneous structure, the catalyst presents excellent catalytic performance in alkaline media. It requires 168 mV to reach current density of 10 mA/cm^2 for HER and 278 m V to reach current density of 30 mA/cm^2 for OER. When used as electrode in a homemade two-electrode system, it only needs t a voltage of 1.63 V to achieve current densities of 10 mA/cm^2, which proves Co_9S_8@NiCo LDH/NF as a superior bifunctional catalyst for water splitting. | Jingan Yan Ligang Chen Xin Liang | 2019 | Science Bulletin2019，64，3： | 3 |
| 2 | Ni2P催化剂的合成及其电解水制氢性能研究显示文摘通过次磷酸盐还原法制备磷化镍催化剂,考察了不同Ni/P摩尔比、烧结温度制备的磷化镍催化剂对电催化分解水产氢性能的影响。结果表明,磷化镍产物的结构组成以Ni2P为主,不同Ni/P摩尔比(1∶2~1∶6)对Ni2P电催化分解水产氢的性能有重要影响,呈现先增后减的趋势,当Ni/P摩尔比为1∶4时Ni2P电解水产氢活性最高;此外,在250~550℃范围内,随着烧结温度的升高,Ni2P电解水产氢的性能呈递减的趋势。 | 彭俊杰 周佳盈 张丙青 | 2019 | 现代化工2019，39，8： | 3 |
| 3 | Enhancement of the hydrogen evolution performance by finely tuning the morphology of Co-based catalyst without changing chemical composition显示文摘Transition-metal phosphides, as the promising alternatives to noble metal catalysts, have been widely used as efficient electrocatalysts for hydrogen evolution reaction (HER). In this work, three kinds of cobalt-8-hydroxyquinoline (Coqx) with different size and nanostructures are synthesized by varying the hydrothermal conditions, which was named as Coqx-L, Coqx-M and Coqx-S according to the decreased size. Accordingly, the CoxP/NC with three different size nanostructures (CoxP/NC-L, CoxP/NC-M and CoxP/NC-S) are obtained by the sequential carbonization and phosphidation of Coqx. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) results imply the identical chemical composition in these catalysts with different morphologies. Thus, systematic study is carried out to reveal the relationship between catalytic performance and morphologies of materials with the same chemical composition. The experimental result indicates that the morphology of Cc)xP/NC plays a crucial role on the surface area and electron transfer. Finally, the catalyst of CoxP/NC-S with the smallest size nanostructrue exhibits the best HER performance with a low overpotential at current density of 10 mA/cm^2 (n = 56.9 and 115.6 mV) and a small Tafel slope (52.3 and 69.3 mV/dec) in both 0.1 M HCIO4 and 1.0M KOH as well as long-term stability. | Wenling Gu Liuyong Hu Changshuai Shang Jing Li Erkang Wang | 2019 | Nano Research2019，12，1： | 1 |
| 4 | Ni_(2)P/Cu(OH)_(2)催化剂的制备及其全解水性能研究显示文摘通过化学处理法在泡沫铜基底表面生成Cu(OH)_(2)纳米线,大大增加了基底材料的表面积和导电性.采用水热法在Cu(OH)_(2)纳米线表面制备片状Ni-CH/Cu(OH)_(2)前驱体,对Ni-CH/Cu(OH)_(2)前驱体进行低温磷化得到多级结构Ni2P/Cu(OH)_(2)催化剂.通过扫描电子显微镜(SEM)、X射线光电子能谱仪(XPS)和X射线衍射仪(XRD)对催化剂的物质结构和表面形貌进行了表征.采用线性伏安法、恒电位等技术对催化剂的电化学性能进行测试.在1.0 mol·L^(-1)KOH碱性溶液中,当电流密度为10 mA·cm^(-2)时,Ni_(2)P/Cu(OH)_(2)的析氢反应(HER)和析氧反应(OER)过电位分别为133和333 mV,且均具有较好的稳定性.将这种多级结构Ni_(2)P/Cu(OH)_(2)催化剂分别用作阳极和阴极进行全解水电解,电流密度达到10 mA·cm^(-2)时所需电势仅为1.69 V,表现出优异的全解水催化性能.良好的电催化性能主要归因于泡沫铜较好的导电性以及这种多级结构催化剂能增大催化剂的表面积,可提供更多的电子传输孔道,暴露更多的活性位点. | 郑瑞娟 黄佳苗 钟坚海 谢桂香 曹战 吴佳洪 郑婷 轩依迪 | 2023 | 分子科学学报2023，39，4： | 0 |
| 5 | 自支撑非贵金属纳米复合材料的研究进展显示文摘自支撑非贵金属纳米复合材料取代了贵金属纳米材料,具有简单制备、成本低、比容量高和循环稳定等优点。对目前国内外在碳布、泡沫镍上自生长锰、铁、钴、镍等非贵金属复合材料的制备及其在析氢析氧、超级电容器、电池等领域的电化学性能进行了综述。 | 赵芳薇 赵丽娜 王继库 | 2021 | 山东化工2021，50，1： | 0 |
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