摘要：As the kinetically sluggish oxygen evolution reaction(OER)is considered to be a bottleneck in overall water splitting,it is necessary to develop a highly active and stable electrocatalyst to overcome this ***,we successfully fabricated a three-dimensional iron-dysprosium oxide co-regulated in-situ formed MOF-Ni arrays on carbon cloth(FeDy@MOF-Ni/CC)through a facile two-step hydrothermal *** studies demonstrate that the designed FeDy@MOF-Ni/CC catalyst requires an overpotential of only 251 mV to reach 10 mA cm-2 with a small Tafel slope of 52.1 mV ***,the stability declined by only 5.5%after 80 h of continuous testing in 1.0 M ***,a cell voltage of only 1.57 V in the overall water splitting system is sufficient to achieve 10 mA cm-2;this value is far better than that of most previously reported *** excellent catalytic performance originates from the unique 3D rhombus-like structure,as well as coupling synergies of Fe-Dy-Ni *** combination of lanthanide and transition metal species in the synthesis strategy may open entirely new possibilities with promising potential in the design of highly active OER electrocatalysts.

摘要：在我国乡村振兴战略背景的实施下,为了进一步推动西藏地区经济社会发展,保护青藏高原生态及推动西藏地区旅游业的发展,通过提取当地传统文化元素进行文创产品创新设计,建设西藏经济旅游文化圣地,解决目前西藏经济社会发展与生态环境保护之间的矛盾,对振兴西藏,挖掘乡村价值与可持续发展具有重要意义。

摘要：在“碳达峰、碳中和”目标背景下,煤电机组面临转型改造,转型为基础保障性和系统调节性电源。对未来煤电发展规模及占比和近5年内的福建省典型纯凝机组和国内的典型供热机组发电利用小时情况进行了统计分析,明确了煤电机组供热改造方向的发展必要性,并在此基础上,依托某热电联产项目从收益和成本两方面分析供热发展的潜力空间。结果表明,燃料价格对供热价格的影响呈现正相关性,通常表现燃料价格每涨跌5~6元/t、蒸汽价格相应上下调整1元/t,收益率上下浮动在-0.18%~0.19%。在不考虑煤价电价、煤价热价联动的条件下,标煤价的盈利分界可提高至1000元/t,因此该热电联产项目具备较强的抵抗煤价上涨风险的能力。分析表明某热电联产项目供热发展具备良好的效益,后续应夯实供热负荷,开拓热力市场,提高机组的热电比,进一步提高项目经济性。