Abstract
Boosting the alkaline hydrogen evolution and oxidation reaction (HER/HOR) kinetics is vital to practicing the renewable hydrogen cycle in alkaline media. Recently, intensive research has demonstrated that interface engineering is of critical significance for improving the performance of heterostructured electrocatalysts particularly toward the electrochemical reactions involving multiple reaction intermediates like alkaline hydrogen electrocatalysis, and the research advances also bring substantial non-trivial fundamental insights accordingly. Herein, we review the current status of interface engineering with respect to developing efficient heterostructured electrocatalysts for alkaline HER and HOR. Two major subjects how interface engineering promotes the reaction kinetics and what fundamental insights interface engineering has brought into alkaline HER and HOR are discussed. Specifically, heterostructured electrocatalysts with abundant interfaces have shown substantially
Abstract
Tailoring catalysts with balanced adsorption capabilities toward multiple reaction intermediates is highly desirable for complex electrocatalytic reactions, but rather challenging. Here, Ni single atom-decorated carbon nanosheets are developed as multifunctional supports for engineering heterostructured electrocatalysts toward hydrogen evolution in alkaline media. The Ni single atoms (Ni–N ) are actively dedicated to cleaving the H–OH bonds as well as facilitating H spillover to metallic Pt sites. For the case of supported Pt electrocatalysts, a Pt/PtO configuration is generated at the heterointerface via Pt–O–C (Ni) interfacial bonding, with oxidized Pt species located at the interface and metallic Pt formed in the near-interface area. Further, the oxidized Pt species are also active for boosting the water dissociation step. These findings not only open up a new avenue toward the development of multifunctional catalyst supports but also demonstrate the importance
Hyatt Regency Portland At The Oregon Convention Center
General Contractor: Mortenson
Subcontractors: ABC Roofing, All Source Construction Supply, Ambrose Glass, Arcadis Us, Arctic Sheet Metal, Barclay Dean Architectural Products, Bedrock Commercial Concrete Cutting, Belstone, Blue-Ribbon Business Products, Brightworks Services, Brundage Bone Concrete Pumping, Building Material Specialties, Cadman Materials, Carr Construction, Ccarlo USA, Chick of All Trades Flagging (COAT), City of Roses Disposal & Recycling, Cleanworld Maintenance, Cochran, Coffman Engineers, Colorado Doorways, Compaction & Recycling Equipment, Construction Specialties, Curtis Restaurant Equipment, Custom Source Woodworking, DAS Simplified, DeWitt Construction, Donaldson Enterprises Consulting, Eagle Striping Services, EC Electric, Elevator Consulting Services, Energy Performance Engineering, Energy Trust of Oregon, Fabrication Products, Faison Construction, Floor Factors, FM Burch and Associates, FM Global, Garn
Architect: Works Progress Architecture LLP
Engineer: DCI Engineers
General Contractor: Hoffman Construction
Submitting Companies: Harsch Investment Properties and DCI Engineers
Subcontractors: Acoustic Design Studio, Carlson Testing, Columbia Steel Services, Dallas Glass, Environmental Science Associates, Fire Protection Consulting, GeoDesign, Graelic, JLL Portland, Marion Construction, RWDI, R.F. Stearns
Portland is renowned for its relatively small city blocks, as well as the large number of odd-shaped properties in the central city core, particularly those situated near the I-5 and I-84 freeways, railroad tracks and other landmarks.
The 7 SE Stark project located in the Central Eastside Industrial District is a good example of the latter. Squeezed between the freeway and railroad tracks on the west side and existing development on the east, the property is much narrower on the north side than the south, which led developer Harsch Investment Properties to expand the original